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[01:33:42] <Jymmm> ssi: Got those passive ethernet power adapters, not bad
[02:20:02] <Deejay> moin
[06:09:55] <_methods> zeeshan: if you're talking about the face mill with the VNMG inserts in it
[06:10:07] <_methods> it's a face mill for aluminum, brass, and bronze
[06:10:22] <_methods> it will leave a really good finish on it compared to regular face mills
[06:10:53] <archivist> I thought he was looking at the V tool above to the right
[06:11:17] <_methods> that's just a regular csink
[06:11:23] <_methods> csink/chamfer tool
[06:11:31] <archivist> deburr
[06:11:38] <archivist> or whatever
[06:12:54] <_methods> well he scored some nice cutters in that lot
[06:13:07] <_methods> all thos mitsubishi cutters are good stuff
[06:13:51] <_methods> nice sandvik copy mill and that face mill with the VNMG's work great on non-ferrous stuff like brass/bronze/copper
[06:14:05] <_methods> aluminum too
[06:14:37] <_methods> i used to use one with 3 inserts and i've never been able to find another one like
[06:14:50] <_methods> it was so beat up i couldn't ever get any maker marks off it
[06:14:55] <archivist> make one
[06:16:27] <archivist> I wanted a thread mill
http://www.collection.archivist.info/archive/DJCPD/PD/2008/2008_10_07_cnc_Thread_mill_tool/p1010245.jpg
[06:16:54] <_methods> those might be DNMG's in there
[06:16:57] <_methods> not vnmg's
[06:21:09] <_methods> i guess i will have to make my own hehe
[08:02:15] <_methods> zeeshan: those may not be dnmg/vnmg in there it's actually probably another style just looks like vnmg/dnmg
[08:02:26] <_methods> similar to the bxd mitsubishi cutters
[08:02:28] <_methods> http://www.mitsubishicarbide.com/EU/West/product/pdf/b027e.pdf
[08:04:40] <_methods> i guess ex kenna makes a mill called the ripper that uses similar geometry inserts
[08:06:33] <_methods> http://latheinserts.com/category.sc;jsessionid=84056EB7C141163E32B9BFCCA3C6E884.qscstrfrnt01?categoryId=86
[08:08:20] <_methods> if you do one way facing passes with those cutters they'll leave a mirror like finish in copper/brass/bronze/aluminum
[08:53:24] <JT-Shop> anyone make a telescoping cover for the back side of a std 6 vise?
[09:13:47] <archivist> CaptHindsight, did you ever find a better low cost webcam ?
[09:15:40] <archivist> these are 1280 but that is rather low res for a job I have
http://www.ebay.co.uk/itm/Logitech-HD-Webcam-B525-Colour-Wired-Web-Camera-With-Mic-720p-USB-2-0-/331424561771
[09:16:21] <CaptHindsight> archivist: we used similar
[09:17:27] <archivist> I want to digitise microfiche as well as measure
[09:18:00] <CaptHindsight> but for precision we looked for bargains on ebay for real lenses and cameras or bought new
[09:18:54] <archivist> I am finding too many lies about megapixels
[09:19:12] <CaptHindsight> thats an understatement
[09:19:32] <archivist> eg wtf is the real res of
http://www.ebay.co.uk/itm/5-0MP-HD-Digital-USB-Eyepiece-Camera-For-Microscopes-Fit-23-2mm-30-0mm-30-5mm-/311267373170
[09:20:10] <CaptHindsight> we got one of those pencil shaped vga microscopes and the vendor said the 4K res was just the resolution of the software not the sensor :)
[09:21:55] <archivist> Image resolution: 2592 * 1944 (for TF Card), 1280 *720 (for USB) !
http://www.ebay.co.uk/itm/14MP-HDMI-HD-Microscope-USB-Industrial-Camera-180X-C-mount-Lens-Stereo-Stand-K-/311236961973
[09:28:37] <archivist> looks like a similar sensor in
http://www.ebay.co.uk/itm/5-0MP-USB-HD-Electronic-Digital-Eyepiece-Camera-CMOS-for-Microscopes-in-UK-/121621665899
[09:29:08] <CaptHindsight> http://dberard.com/home-built-stm/stm-scans/ that scan is 4nm across, probably too much res for microfiche :)
[09:31:53] <CaptHindsight> we either used <$30 webcams or >$1k camera bodies and lenses
[09:32:08] <CaptHindsight> not much in between unless you find a bargain
[09:32:46] <CaptHindsight> if the 5MP sensor is a 5MP that might be a good deal
[09:32:52] <archivist> been contemplating, linuxcnc and a scanner ccd
[09:38:52] <CaptHindsight> http://www.ostec.com.cn/product_detail.php?ProId=18&CateId=31 more specs on that MC500
[09:41:56] <archivist> some of the same images as the ebay listing but seems it may be a real 5mp sensor
[09:44:04] <archivist> https://www.aptina.com/products/image_sensors/mt9p001i12stc/
[10:15:25] <CaptHindsight> archivist: the sensor is available at Digikey
http://www.digikey.com/product-detail/en/MT9P001I12STC/557-1455-ND/2074134
[10:17:16] <archivist> and digikey are in the UK too :)
[10:17:39] <CaptHindsight> also
http://www.digikey.com/product-detail/en/MT9T031C12STC/557-1452-ND/2170649
[10:19:29] <archivist> other part had no stock, this one 300+
[10:19:36] <CaptHindsight> http://www.digikey.com/product-search/en?pv471=43&pv471=51&pv471=61&pv471=40&pv471=56&pv471=64&pv471=41&pv471=5&pv471=69&pv471=50&pv471=70&pv471=32&pv471=34&pv471=57&pv471=10&pv471=35&pv471=11&pv471=72&pv471=38&pv471=58&pv471=39&pv471=42&pv471=73&pv471=60&pv471=74&pv471=44&FV=fff4001e%2Cfff802a2%2C2dc1ecc&mnonly=0&newproducts=0&ColumnSort=0&page=1&stock=1&quantity=0&ptm=0&fid=0&pageSize=25
[10:21:33] <CaptHindsight> ^^ CMOS sensor with processor all 1280 x 800 or higher res
[10:21:43] <CaptHindsight> in stock
[10:26:21] <archivist> http://www.digikey.com/product-detail/en/OV14825-A16A/884-1030-ND/3190557
[10:28:07] <CaptHindsight> at that price why are there no <$50 14Mp webcams?
[10:29:06] <archivist> what does it need to drive it :)
[10:30:06] <archivist> datasheets are a bit useless
[10:35:04] <archivist> and no better off the makers site unless you sign your life away
[10:40:46] <CaptHindsight> archivist: them maybe stick with
http://www.aptina.com/assets/downloadDocument.do?id=808
[10:40:54] <CaptHindsight> http://www.digikey.com/product-detail/en/MT9T031C12STC/557-1452-ND/2170649
[10:44:33] <archivist> shame that one is only half the resolution but the same cost as the omnivision
[10:48:59] <CaptHindsight> will the world end if they shared the specs?
[10:49:29] <CaptHindsight> what competitive advantage do they hold by keeping the interface and API under NDA?
[10:50:10] <CaptHindsight> is it just perceived power by keeping the info private?
[10:50:31] <archivist> utter stupidity methinks
[10:50:36] <CaptHindsight> are they violating someones patent?
[10:50:47] <CaptHindsight> and this keep it a bit more secret
[10:51:38] <CaptHindsight> we aren't asking them for copies of their tape to make masks
[10:51:55] <CaptHindsight> just how to interface to it
[10:52:28] <archivist> or silly money
http://www.ebay.co.uk/itm/Tucsen-H-694CICE-6-1mp-Pro-Research-Colour-Cooled-CCD-Microscope-Astro-Camera-/121608264869
[10:54:00] <archivist> hehe twice the new price from aldi
http://www.ebay.co.uk/itm/BRESSER-BIOLUX-AL-FIELD-MICROSCOPE-SET-WITH-USB-CAMERA-BARLOW-LENS-/181712934287
[10:54:05] <archivist> I have one
[11:00:26] <CaptHindsight> http://www.amscope.com/14mp-usb2-0-microscope-usb-digital-camera-advanced-software-and-micrometer.html?gclid=CKj61Z2Q9sQCFYI8aQodobQADg $339.98 with that 14mp sensor
[11:02:04] <CaptHindsight> unless you have to scan quickly I'd use a <$50 webcam and then scan + frame average or use a line scanner CCD
[11:03:40] <archivist> there can be hundreds of images per fiche
[11:03:46] <CaptHindsight> http://simplecv.org/
[11:04:59] <archivist> price performance seems to be linescan ccds
[11:05:08] <CaptHindsight> what's the resolution of the fiche (lines per inch or similar)
[11:06:50] <CaptHindsight> http://www.worldmicrographics.com/faq-home.htm
[11:09:12] <archivist> a page width can be reduced to 4.3mm in an example I just measured
[11:15:42] <archivist> 200dpi on 8inches this particular fiche (PDP11/70) has had two pages side by side done so something like 3200x2200 to capture this sheet per image (13x16 images total)
[12:32:05] <CaptHindsight> http://www.ebay.com/itm/Dalsa-Piranha-2-2K-Resolution-Line-Scan-Camera-P2-42-02K40-50E-USG-/371301004501 US $192.95
[12:34:28] <CaptHindsight> http://www.ebay.com/itm/1PCS-ILX558K-Encapsulation-CDIP-5340-pixel-3-line-CCD-Linear-Sensor-Color-/371174232795 5340-pixel 3-line CCD Linear Sensor $12
[12:39:48] <archivist> been contemplating just taking an old scanner apart, making new gearing and futzing with the lens to make it scan tiny images
[12:40:39] <archivist> so all the interfacing with the chip like that is already done
[12:40:40] <CaptHindsight> why not if you already have one
[12:41:24] <archivist> one? have about 3 in bits I have looked at the gizzards of :)
[12:42:45] <archivist> two problems to solve, focus and find images
[12:43:18] <archivist> and the third usual problem, lack of roundtuits
[13:25:40] <JT-Shop> when you find some email me a few
[13:28:44] <archivist> I just had a quick tidy in one shed and in the lounge, found none
[13:31:08] <archivist> hmm opencv is a bit blank on explaining how to control camera focus
[13:43:31] <jdh_> turn the ring
[13:47:23] <archivist> not funny on an automated fiche scanner
[13:47:58] <archivist> or a measuring machine where the focus gives height info
[13:48:56] <Rab> archivist, I have a similar interest in scanning 8mm film. Looking for good resolution and color, low distortion.
[13:50:22] <Rab> I have a Canon PowerShot compatible with CHDK I might try to use. Not too familiar with optics, so I'm not sure how to project the frame to the camera lens with low distortion.
[13:51:22] <archivist> need to just extend the lens so it can do close up probably
[13:51:38] <Rab> I have old 8mm projectors, but the transport and optics are strictly consumer-grade. I'd like to capture at 1080p or better.
[13:52:25] <Rab> CHDK looks like a winner, though, for programmatic shutter release and upload over USB.
[13:52:50] <archivist> trouble is were they taken on consumer grade too, and therefore need the image positioning as a post process
[13:54:04] <Rab> Yeah, I think I'll use a CCD array from a fax machine to position each frame with a stepper.
[13:54:51] <Rab> Assuming each frame corresponds to the sprocket hole, which might be a generous assumption.
[13:55:32] <archivist> they rattle about, you may need to use the image detail to fix it up
[13:55:59] <Rab> Some people use desktop scanners and opencv to bulk-scan and identify frames, but their results aren't actually very good...still some jitter.
[13:57:05] <archivist> if they use the border I would expect some jitter, I think the pros use the image detail
[13:57:08] <Rab> 8mm Kodachrome was surprisingly good if properly exposed. At least DVD quality.
[13:58:23] <archivist> cheap enough to take to bits
http://www.ebay.co.uk/itm/Canon-PowerShot-A480-10-0-MP-Digital-Camera-Silver-SD-CARDS-Excellent-Con-/301584210637
[13:59:12] <XXCoder> 13 euro. cheap
[13:59:19] <XXCoder> + ship
[13:59:55] <Rab> I have a pair of PS SD1300IS, one was free...seems like a good starting point.
[14:01:10] <Rab> Strictly speaking, the optics in a P&S digital camera are "consumer grade" as well. But I'm hoping with cropping and good focus, it won't make a visible difference.
[14:01:45] <XXCoder> whats you guys tying to do?
[14:02:25] <Rab> Me = 8mm film, archivist = microfiche.
[14:02:39] <XXCoder> scan em in?
[14:02:43] <archivist> yes
[14:03:10] <XXCoder> if I recall, some scanners has feature for scanning microfiche. no idea on 8 mm film
[14:03:13] <Rab> archivist, would you use an X/Y table to image each page of the fiche?
[14:03:36] <archivist> that is what I am thinking of yes
[14:03:37] <XXCoder> probably could build some custom cnc to scan each frame
[14:03:54] <XXCoder> then use recent invention to align frames
[14:04:22] <archivist> I have some parts from old readers ready to be repurposed
[14:04:49] <Rab> Seems like desktop scanners wouldn't have enough resolution, even at 2400dpi.
[14:05:54] <archivist> my scanner useless
http://www.collection.archivist.info/archive/fiche_experiments/Epson_perfection3200photo/page0003.jpeg
[14:06:23] <XXCoder> bit blurry
[14:06:48] <Rab> You could probably sharpen to legibility, but I'm sure it's not satisfactory for blueprints.
[14:06:50] <archivist> a camera on a stand with a closeup extension
http://www.collection.archivist.info/archive/fiche_experiments/50mm_on_stand/IMG_1060.JPG
[14:07:56] <Rab> archivist, do you have a strategy for removing dust before imaging?
[14:08:28] <archivist> yes/no/depends
[14:10:17] <Rab> I was thinking of putting the whole rig in a positive pressure box with filtered airflow, and puffing air at each frame in sequence.
[14:11:02] <archivist> canon rebel looking at reader screen
http://www.collection.archivist.info/archive/DJCPD/PD/2011/2011_09_12_fiche_experiment/IMG_1204.JPG
[14:11:44] <Rab> The best film transfer uses a "wet gate", but I don't think that's something I can rig up at home.
[14:12:43] <XXCoder> dip reel in water, air blast then scan?
[14:13:22] <Rab> I think that might leave water spots, and it won't address oil contaminants.
[14:13:43] <XXCoder> cotton idle rollers?
[14:13:52] <Rab> Commercial wetgate apparently uses perchloroethylene.
[14:14:08] <Rab> Hmm...shedding cotton fibers.
[14:14:20] <XXCoder> rollers probably would get dusty and - yeah. and also might damage
[14:15:01] <Rab> Microfiber cloth shouldn't scratch the film itself, but as it picks up particles those could scratch.
[14:15:03] <archivist> "lint free" cloth rubber
[14:15:31] <XXCoder> build up is still problem. unless theres system to keep those clean
[14:15:47] <archivist> vacuum the cloth before it comes around for the next use
[14:16:05] <Rab> Film at that scale is very resiliant if you don't care how it looks, and terribly fragile if you do.
[14:17:01] <archivist> if the depth of field is right the dust and scratches are out of focus
[14:17:20] <Rab> A microscope with sufficiently short depth of field could image each emulsion layer in turn, and then you process out the substrate and surface debris.
[14:17:30] <Rab> Yeah, that. ^_^
[14:17:51] <XXCoder> air blast to remove as much dust as possible
[14:18:05] <XXCoder> then do that process. that probably would be suffecent?
[14:18:19] <Rab> But at that DoF, you do have a hard time imaging all the emulsion layers. Not a problem with monochrome.
[14:18:28] <Rab> XXCoder, that's what I'm thinking.
[14:19:12] <Rab> Air blast, with enough filtration and direction that you're not just recycling a cloud of dust particles.
[14:22:28] <XXCoder> air blast going directly to fan to external
[14:22:41] <XXCoder> and other fans input filtered air
[14:22:47] <XXCoder> result: postive pressure
[14:23:09] <archivist> just use a domestic hepa filtered vacuum cleaner
[14:23:35] <archivist> note they are not designed for closed loop though
[14:25:56] <archivist> this was deadly boring canon rebel->reader screen
http://www.collection.archivist.info/archive/DJCPD/PD/2011/2011_06_27_RD53A/
[14:26:29] <XXCoder> plan to do ocr?
[14:27:01] <archivist> not really, some of the stuff use the same character for 0 and O
[14:33:12] <Rab> My father use to do genealogical research using microfilm and microfiche. The archives had microfilm printers, which were like a cross between a reader and a photocopier. Huge machines, always broken, but the print was a fair representation of the film.
[14:33:51] <archivist> I have one of those ready to steal parts from under a sheet in the garden
[14:34:12] <cradek> I'm pretty sure those machines are still available for use in the public library, a few miles from me
[14:34:44] <archivist> cost per page makes using them a bit silly though
[14:34:52] <cradek> sure, depends
[14:34:54] <Rab> Digital imaging should be a near-miraculous improvement.
[14:37:48] <archivist> this is an over priced mandraulic digital scanner
http://www.ebay.co.uk/itm/Micro-Image-Capture-7-Microfilm-Microfiche-Digital-Scanner-Viewer-Printer-/251898318974
[14:38:16] <XXCoder> fancy.
[14:39:45] <XXCoder> man wish im good on soldering
[14:39:51] <XXCoder> its only way to root my kindle
[14:39:55] <Rab> Haha, mandraulic.
[14:40:13] <XXCoder> https://i.imgur.com/5Jj7ys6.jpg
[14:40:23] <XXCoder> not my image
[14:40:48] <archivist> use real wire not graphics :)
[14:40:56] <XXCoder> again, not my pic lol
[14:41:23] <Rab> Doesn't look bad at all.
[14:41:52] <Rab> Maybe practice with some kynar wire and a scrap PCB first.
[14:42:01] <archivist> only 8 joints to do
[14:43:05] <archivist> I wonder if the modern college technicians have to do a soldering exam
[14:43:53] <archivist> we had a tag strip, some cable, coax and a couple of parts for our examination
[14:44:01] <Rab> EE, probably not.
[14:44:23] <Rab> CS/EE = can't code or solder.
[14:44:51] <archivist> I did radio and tv servicing
[14:47:33] <roycroft> i know a chemistry professor who has never been in a chem lab, not even in undergrad school
[14:47:42] <roycroft> i can imagine engineers/technicians who have never soldered
[14:48:24] <roycroft> why said professor has never been in a lab i do not understand
[14:48:26] <roycroft> labs are the fun part
[14:48:42] <CaptHindsight> people that can actually do things are considered a threat to the establishment, so they just teach theory
[14:48:58] <archivist> cannot do it therefore teach it
[14:49:15] <Rab> An engineer doesn't need to solder, that's not what the degree is expected to provide.
[14:49:30] <roycroft> an ee should know how to solder
[14:49:30] <Rab> And their job may never require it.
[14:49:38] <roycroft> it's important to have some practical experience
[14:49:44] <CaptHindsight> take any tech company and try to find out who really develops whatever they make
[14:49:48] <archivist> if the engineer cannot do his own experiments he is useless
[14:49:49] <Rab> A technician must solder, or they'll be out of a job.
[14:50:23] <roycroft> i've had to work with a lot of civil engineers who never leave their office
[14:50:55] <roycroft> when i'm out in the field managing a project and something goes wrong i can usually figure out a solution quickly
[14:50:56] <CaptHindsight> you might be surprised by the few people that actually design, develop, engineer etc whatever they make
[14:51:05] <Rab> Just like ME != machinist.
[14:51:18] <roycroft> the ivory tower engineers never seem to be able to sort things out quickly or easily
[14:51:35] <roycroft> in the meantime there's a construction crew standing by with a foreman who is getting more upset by the minute
[14:51:56] <roycroft> i've seen a lot of really bad designs that look good in theory, capthindsight
[14:52:01] <roycroft> i don't think i'd be surprised at all
[14:52:29] <roycroft> i do think that part of an engineering certification should be working in the trade(s) that apply to their specialty for a year
[14:52:57] <CaptHindsight> I've met a lot of construction people that knew what they were doing but didn't want to work too hard
[14:53:10] <archivist> and any teaching
[14:53:15] <roycroft> drawing a nice picture of some underground conduit connecting to some access vaults is all nice and good
[14:53:35] <roycroft> digging up the ground and dealing with all the crap you encounter in the real world is quite a different thing
[14:53:56] <roycroft> coming up with two solutions for a problem on paper is one thing
[14:54:20] <roycroft> having the experience to know which one can be implemented more quickly/inexpensively quite another thing
[14:54:40] <roycroft> practical experience makes for a much better engineer in almost every case
[14:55:46] <CaptHindsight> how many people can actually tell if another person is any good at the job required?
[14:56:17] <roycroft> i'm pretty good at reading peopile
[14:56:18] <archivist> certainly not HR dept
[14:56:19] <roycroft> people
[14:56:45] <roycroft> hr departments should, for the most part, be eliminated from the hiring process
[15:12:00] <malcom2073> Really the only thing HR should do, is the intake paperwork after the proper person is selected.
[15:13:08] <XXCoder> LOL
http://www.businessinsider.com/oregon-runner-loses-race-celebrating-too-early-2015-4
[15:13:17] <XXCoder> what a dumb way o lose
[15:13:20] <malcom2073> That reminds me, I need to fax over a copy of my high school diploma to this company's HR department. Apparently they need it
[15:19:19] <Cromaglious_> XXCoder, that's really funny
[15:19:27] <XXCoder> yeah
[15:19:40] <Cromaglious_> what a dweeb
[15:20:42] <XXCoder> more like just dumb moment
[15:32:06] <XXCoder> I love the engineer guy.
https://www.youtube.com/watch?feature=player_embedded&v=hUhisi2FBuw
[15:45:48] <zeeshan> hehe
[15:45:54] <zeeshan> i just did some drawing
[15:46:00] <zeeshan> using that exact same setup , but in stainless
[15:50:52] <XXCoder> zeeshan: the soda can thing?
[15:51:01] <zeeshan> yea
[15:51:11] <zeeshan> you start with a blank of known diameter
[15:51:16] <zeeshan> then draw it
[15:51:24] <zeeshan> to get the limit draw ratio
[15:51:38] <zeeshan> but also to study the anisotropy of the sheet
[15:51:49] <XXCoder> interesting
[15:51:59] <zeeshan> http://aluminium.matter.org.uk/content/media/images/form-deepDrawnCupsLines.jpg
[15:52:03] <zeeshan> you get those peaks and valleys
[15:52:20] <zeeshan> because the sheet is stronger in one direction of pull
[15:52:22] <zeeshan> vs the other
[15:54:26] <XXCoder> interesting
[15:58:49] <Cromaglious_> yeah, you get lines built up on the crystal angle lines
[15:59:14] <zeeshan> ??
[15:59:33] <Cromaglious_> aluminium has a crystaline structor
[16:00:00] <Cromaglious_> structure
[16:00:07] <zeeshan> i dont get your point
[16:00:09] <zeeshan> so is stainless
[16:00:14] <zeeshan> and a bunch of other metals
[16:00:18] <Cromaglious_> smaller crystals
[16:00:38] <zeeshan> aluminum can also have large crystals
[16:01:35] <zeeshan> http://www.scielo.br/img/revistas/rem/v64n1/a09img03.jpg
[16:01:43] <zeeshan> when you roll metal into sheet form
[16:01:48] <zeeshan> the grains get elongated like that
[16:02:15] <Cromaglious_> drawing it thin, causes it to stretch on the weak parts of the crystalline structure so you get the wavies at the edge.
[16:02:37] <zeeshan> thats partly true
[16:02:47] <zeeshan> the fact that it happens at a repetitive pattern
[16:02:52] <Cromaglious_> rolling is more of a crushing instead of drawing
[16:02:54] <zeeshan> means its not random
[16:03:00] <zeeshan> its due to the anisotropy of the sheet
[16:03:45] <Cromaglious_> so the deformation behaves a bit differently.
[16:03:45] <zeeshan> if the material was completely isotropic
[16:03:49] <zeeshan> and you tried to draw it
[16:03:55] <zeeshan> you wouldnt get those peaks and valleys
[16:04:01] <Cromaglious_> true
[16:04:04] <zeeshan> and if you did, it wouldnt be easily visible
[16:04:04] <JT-Shop> https://www.youtube.com/watch?v=vmlncLXKpVc
[16:04:48] <JT-Shop> opps wrong wolf creek
https://www.youtube.com/watch?v=1hbtvNAE_lI
[16:05:13] <Cromaglious_> but nothing is completely isotropic except flaw free diamonds being the closest.
[16:05:19] <JT-Shop> this is where I ride
[16:05:37] <XXCoder> any of you guys grow crystals?
[16:05:47] <zeeshan> Cromaglious_: if you took cold rolled sheet, and heat treated it so you allowed recrystallization
[16:05:53] <Cromaglious_> not in 40 years or so
[16:05:58] <zeeshan> you'd get pretty close to uniform grain structure
[16:06:07] <zeeshan> will it be perfect? no
[16:06:10] <zeeshan> close to perfect? yea :P
[16:06:41] <Cromaglious_> zeeshan, you'd get more uniform wavies
[16:07:01] <zeeshan> http://www.numisheet2011.org/Benchmarks/BM1_Jan27_2011.files/image001.jpg
[16:07:04] <zeeshan> cup on the right
[16:07:07] <zeeshan> that hasnt been trimmed
[16:07:09] <zeeshan> is very close to isotropic
[16:10:07] <XXCoder> engineers. heh
[16:10:24] <zeeshan> XXCoder: we're anal :)
[16:10:28] <zeeshan> some of us
[16:10:47] <zeeshan> before i used to assume a lot
[16:10:58] <Cromaglious_> it looks like the left cup, wasn't pushed completely into the die, it looks to have a bit of curve at the top, like the blank wasn't completely out of the top hold down plate
[16:11:03] <XXCoder> zeeshan:
http://www.beheadingboredom.com/wp-content/uploads/2014/07/science-versus-engineering-versus-liberal-arts.jpg
[16:11:06] <zeeshan> now if i dont know it from an analytic perspective
[16:11:09] <zeeshan> then i dont really know it :P
[16:11:21] <zeeshan> rofl XXCoder!
[16:11:26] <zeeshan> hahahaha
[16:11:49] <zeeshan> Cromaglious_: okay, think what you'd like :)
[16:12:12] <Cromaglious_> science - what it should do, engineering - what it really does, liberal arts - why I want it to do.
[16:12:15] * zeeshan got all his parts from china!
[16:12:30] <Cromaglious_> s/why/what/
[16:12:33] <zeeshan> slightly more than a month
[16:13:54] <Cromaglious_> <- comes from a family of engineers.
[16:14:07] <zeeshan> are you one?
[16:14:30] <Cromaglious_> more shade tree enganeer
[16:15:13] <Cromaglious_> I tend to fix degree'd engineers mistakes
[16:15:25] <zeeshan> i hope not with deep drawing! :P
[16:17:03] <XXCoder> laters
[16:17:36] <Cromaglious_> not yet...
[16:18:45] <R2E4> hi all
[16:18:46] <Cromaglious_> most of my work experience is in software engineering
[16:19:17] <Cromaglious_> I was always fixing the H1 visa engineers code.
[16:20:03] <R2E4> I am having a problem with linuxcnc moving G1 to a location without waiting until the bit is at safe depth. I cant tell wheter it is the post telling it to do that or something inside linux cnc.
[16:20:39] <R2E4> http://pastebin.com/cWjzGFjU is the gcode. it is just pocketing three small holes with a .25 endmill
[16:20:41] <Cromaglious_> R2E4, G60 I think
[16:20:51] <Deejay> gn8
[16:21:08] <Cromaglious_> you need to set exact path
[16:21:56] <Cromaglious_> g61
[16:22:06] <Cromaglious_> you're probably running in G64 mode
[16:22:26] <R2E4> line 417 tells it to go to safe depth
[16:23:36] <Cromaglious_> G20 G40 G49 M6 T1 change to G20 G40 G49 G61 M6 T1
[16:24:27] <zeeshan> isnt g61 active by default?
[16:24:49] <Cromaglious_> no
[16:24:53] <zeeshan> what is
[16:25:06] <Cromaglious_> G64
[16:25:38] <R2E4> Can I run in G64 all the time?
[16:25:59] <Cromaglious_> G664 is constant velocity
[16:26:10] <Cromaglious_> it tends to round out paths
[16:26:40] <Cromaglious_> on retracts to safe Z you want to be in G61
[16:27:02] <zeeshan> ill need to check next time im machining on the mill
[16:27:20] <R2E4> That would be in my post then.
[16:27:26] <Cromaglious_> or retract to a higher level to make the curve happen out of the hole
[16:28:03] <zeeshan> i wonder what your g64 tolerance is set to
[16:28:09] <R2E4> my retract is set to .2
[16:28:14] <zeeshan> that should be fine
[16:28:21] <zeeshan> i retract .2 all the time
[16:28:37] <zeeshan> it shouldnt be curving out
[16:28:44] <R2E4> I only notice it when I am pocketing a small hole
[16:28:46] <zeeshan> should be going straight up and move
[16:28:54] <zeeshan> how small
[16:28:54] <Cromaglious_> try with a g0Z.5
[16:30:46] <Cromaglious_> or add a line 416.5 G61 and a line 417.5 G64
[16:32:01] <R2E4> I am trying it now
[16:34:12] <R2E4> the .5 retract worked.
[16:34:33] <R2E4> that would only work untill a certain depth thpough.
[16:35:56] <Cromaglious_> or you make a G0Z.5 and next line G0Z.2
[16:36:25] <Cromaglious_> so the curve would be on the G0Z.2 movement
[16:36:26] <R2E4> I dont want to have tpo worry about this everytime I run some code.
[16:36:56] <zeeshan> R2E4: did you try g61
[16:37:00] <Cromaglious_> look up G61 and G64 behavior
[16:37:03] <R2E4> better to tell my post to switch to G61 when retracting and back to g64
[16:37:10] <zeeshan> you can also decrease g64 tolerance.
[16:37:16] <R2E4> or visa versa
[16:37:17] <zeeshan> to stop it from steering away so far away
[16:37:49] <R2E4> there should be CV settings in linuxcnc
[16:38:32] <R2E4> I'll look into it. I have a pice I need to do the similar thing on now, but dont want to scrap the piece.
[16:55:26] <Thomaxo_> Hello everyone, could i ask for some help?
[16:56:05] <Thomaxo_> I'm planning to buy a small CNC (600mm X 800mm), but, software-wise i'm pretty clueless when it comes to CAM
[16:57:14] <Thomaxo_> Modeling using CAD software (rhino and autoCAD) goes well, but, there seems to be more difficulty when it comes to generating Gcode
[16:57:55] <Thomaxo_> Does anyone have a nice reference or advice that could help me out in choosing the most capable yet somewhat-friendly software? :)
[17:00:04] <Cromaglious_> Thomaxo_, I'm still fighting that myself...
[17:00:29] <MrSunshine> ough .. a heap of new problems ... far to low humidity in the wood workshop ...
[17:00:31] <MrSunshine> sigh :P
[17:01:17] <Cromaglious_> pycam worked a bit for me. SketchUcam in sketchup also worked for 2D stuff. I haven't found a easier to use free 3D cam yet
[17:01:56] <Cromaglious_> MrSunshine, static?
[17:02:14] <MrSunshine> Cromaglious_: results in to low humidity in the wood =)
[17:02:22] <MrSunshine> and yeah . .alot of static :P
[17:02:50] <Cromaglious_> ahhh humidifier... or a pot full of water on a hotplate
[17:03:29] <MrSunshine> Cromaglious_: got a bucket with a towel in now infront of the heating fan .. (blows even when not heating) =)
[17:03:37] <MrSunshine> lets see if it gets it up a bit =)
[17:03:40] <Cromaglious_> rig a swamp cooler with a humidity sensor
[17:03:48] <Tom_itx> Thomaxo_, does rhino have a cam plugin for it?
[17:04:11] <Cromaglious_> Tom_itx, I believe there is one available..
[17:04:26] <Cromaglious_> rhino is out of my budget
[17:04:26] <MrSunshine> Cromaglious_: yeah thinking something like that ... problem is keeping mold etc at bey
[17:04:37] <Tom_itx> well he said he used rhino...
[17:04:48] <Cromaglious_> stick a UV light inside the swamp kooler
[17:04:53] <Thomaxo_> well yeah, the trail once for school :)
[17:05:08] <Tom_itx> cambam
[17:05:11] <Tom_itx> look into that
[17:05:21] <Thomaxo_> I will! :)
[17:05:27] <Tom_itx> i didn't care for it but some like it
[17:05:33] <Tom_itx> i've got commercial software
[17:05:49] <Thomaxo_> i dont mind cashing out though
[17:05:58] <Thomaxo_> well, up till 200 dollars
[17:05:58] <Tom_itx> how much cash?
[17:06:01] <Tom_itx> heh
[17:06:07] <Tom_itx> i've got 6-8k in mine
[17:06:13] <Thomaxo_> :)
[17:08:27] <Thomaxo_> letc c
[17:11:25] <Thomaxo_> rhino academic will cost me 200 dollars, rhinoCAM.. 500 to 30,000
[17:13:30] <Tom_itx> that's the bad thing about student discounts
[17:13:36] <Tom_itx> they get you used to something you can't afford
[17:16:37] <Thomaxo_> rhino itself is pretty ok
[17:16:56] <Thomaxo_> 500 full retail price, that includes grasshopper
[17:17:58] <Thomaxo_> Nevermind, 1000*
[17:18:22] <Thomaxo_> still reasonable though
[17:21:11] <JT-Shop> dang plasma fires but won't stay lit
[17:23:06] <_methods> check all consumables?
[17:23:12] <_methods> ground?
[17:23:57] <Cromaglious_> breaker?
[17:24:15] <Cromaglious_> signal ground?
[17:24:23] <Cromaglious_> relay?
[17:24:46] <Cromaglious_> enough beer in the fridge?
[17:25:06] <Cromaglious_> Air pressure.
[17:25:42] <Cromaglious_> won't stay lit... HF problem?
[17:26:02] <Cromaglious_> will it work on manual control?
[17:28:14] <Cromaglious_> is it: plasma cutter itself: control circuit, hf circuit, line power circuit. is it interconnect. is it controller?
[17:28:39] <JT-Shop> crap the ground is off
[17:28:59] <Cromaglious_> ahhh ID10T error
[17:29:12] <_methods> those are the kind of problems i like hehe
[17:29:14] <JT-Shop> I only move it when I have to load a 4 x 4 sheet as it is in the way
[17:29:14] <_methods> easy fix
[17:29:35] <JT-Shop> I need to put a tab on the bottom of the water table for the ground
[17:29:51] <Cromaglious_> That sounds like an ideal idea
[17:30:01] <JT-Shop> been a long day thanks for fixing my plasma _methods
[17:30:06] <Jymmm> ideally
[17:30:52] <Cromaglious_> would it be the idealistic ideal idea?
[17:31:23] <Jymmm> that's all I had
[17:31:27] <Cromaglious_> hehe
[17:32:06] <Cromaglious_> id10T errors always bite me in the arse
[17:34:15] <Cromaglious_> well I have a stack of delrin 3"x3"x1/2" squares ready to be cut for my touch probe body.
[17:34:49] <JT-Shop> well now my torch probe input is not working on the 7i76
[17:35:03] <Cromaglious_> ground?
[17:35:14] <Cromaglious_> bad switch?
[17:35:51] <Cromaglious_> bad wire?
[17:35:59] <_methods> haha no problem
[17:36:21] <Cromaglious_> bad neighbor?
[17:36:23] <_methods> the ole unhooked ground has gotten me a few times
[17:36:40] <Cromaglious_> rat chewed wire?
[17:37:11] <Cromaglious_> that was a $2000 problem on my old bosses BMX X5
[17:37:25] <Cromaglious_> well mouse chewed
[17:37:45] * Cromaglious_ pokes R2E4
[17:38:09] <Cromaglious_> is R2E4 real or a ping timeout rejoin
[17:38:21] <JT-Shop> crap it ain't the switch, I wonder if I fried the 7i76 inputs
[17:38:47] <Cromaglious_> try the old jumper the input test then
[17:39:33] <Thomaxo_> i found this little interesting thingy
http://www.g-forcecnc.com/index.html
[17:39:39] <Thomaxo_> affordable to
[17:39:47] <JT-Shop> hmm, the limits all work
[17:41:25] <Thomaxo_> hmm
[17:41:33] <Thomaxo_> you guys decide: yes/no:
http://www.grzsoftware.com
[17:42:17] <Cromaglious_> hmm need to work on my 3040 to hold boards vertically
[17:43:04] <Cromaglious_> ouch $104.99
[17:45:08] <Cromaglious_> man that's WAY outside my budget
[17:45:24] <Cromaglious_> I have to live on my disability check
[17:46:05] <Cromaglious_> at least on the car it was $92 for a radiator instead of $1500 for the head gasket set
[17:46:40] <Thomaxo_> won't good cnc software earn you back money easily?
[17:46:58] <Cromaglious_> NEVER EVER EVEN THINK about getting a caddy with a northstar engine even for free
[17:47:11] <Cromaglious_> engines are TOTAL crap
[17:48:00] <Cromaglious_> When I got it, I should have turned around and sold it
[17:49:02] <SpeedEvil> Thomaxo_: Good CNC software only earns you money if you're physically, mentally, and legally able to reliably do buisness with people.
[17:49:40] <SpeedEvil> For example, if you're reying on a disability check - you may not be able to always earn due to your disability flaring up - and may not be able to easily restart disability
[17:50:13] <Thomaxo_> hmm true
[17:50:47] <Thomaxo_> ironically i plan to buy a CNC mill because of my disability though
[17:50:49] <Thomaxo_> lol
[17:51:56] <JT-Shop> looks like a bad micro switch... I wonder if I have one that I can find?
[17:52:30] <Thomaxo_> anyone have experience with Qcad?
[17:52:40] <Thomaxo_> seems to be solid based on the site
[17:55:20] <Tom_itx> cheaper than a 7i76
[18:02:00] <tiwake> Thomaxo_:
http://www.freecadweb.org/ if you havent seen it before
[18:03:05] <Thomaxo_> ah yes, was referring to the Qcad/CAM package :) seems to be 2d only though..
[18:03:30] <Thomaxo_> pretty much covered in cad software (thank god for free student software)
[18:03:30] <tiwake> Thomaxo_: pycam might be worth looking at, depending
[18:03:50] <Thomaxo_> i'll look into that
[18:03:56] <tiwake> http://pycam.sourceforge.net/
[18:04:03] <Thomaxo_> thanks :O
[18:05:04] <tiwake> a year since last update?
[18:05:51] <Thomaxo_> hmm
[18:06:04] <Thomaxo_> pyCAM might do the trick though, i have experience in python
[18:07:27] <Thomaxo_> or i just spend 200 euro on meshCAM
[18:07:33] <Thomaxo_> and spare me the headaches?
[18:07:54] <tiwake> I wouldent think it needs any work
[18:08:08] <tiwake> well, do do anything I would need it to do
[18:08:18] <tiwake> but I've never actually used it, so cant say for sure
[18:09:29] <Thomaxo_> no harm in trying pyCAM first :)
[18:09:43] <andypugh> I have found PyCAM to be unusably slow. CamBam is about 75% as good as MeshCAM and 50% the price.
[18:12:55] <Thomaxo_> hmm
[18:13:11] <Thomaxo_> i'll look at lots and lots of videos about the 2
[18:13:29] <Thomaxo_> or 3 perhaps if i can get pyCAM to run :)
[18:27:42] <zeeshan> https://www.youtube.com/watch?v=Om4HDvJstsU
[18:27:48] <zeeshan> tested the import parting tool
[18:27:50] <zeeshan> w/ korloy insert
[18:27:54] <zeeshan> if anyone is intersted
[18:28:03] <zeeshan> i tried 400 sfm off camera
[18:28:14] <zeeshan> seems like i get more stringy chips if i do that
[18:28:46] * zeeshan needs to convert to analog control of spindle instead of modbus -- wonders if anyone notices the delay in speed changes
[18:32:01] <malcom2073> My untrained eye doesn't!
[18:32:02] <malcom2073> :P
[18:32:11] <Tom_itx> my slow pc doesn't :D
[18:32:18] <zeeshan> lol
[18:32:43] <zeeshan> i give A+ to import tool block + parting blade
[18:34:11] <Thomaxo_> i'm gonna ask something weird:
[18:34:18] <Thomaxo_> is there a freehand cnc tool?
[18:34:57] <Thomaxo_> you drag the mill to point A, then to point B, and then you say "mill that plz"
[18:35:24] <Tom_itx> alot of machines have mdi
[18:35:35] <Tom_itx> some have graphics
[18:36:15] <Thomaxo_> mission data interface?
[18:37:06] <Thomaxo_> aaah midi
[18:37:26] <Tom_itx> manual data input
[18:37:38] <zeeshan> Thomaxo_: thats how you program robots
[18:37:47] <zeeshan> you move it in world space
[18:37:50] <zeeshan> and grab the point
[18:37:56] <Tom_itx> zeeshan you need to get that thing on center!
[18:38:06] <zeeshan> then in the sequencing you choose the point
[18:38:15] <zeeshan> Tom_itx: it is on center
[18:38:24] <andypugh> Thomaxo_: There is a sort-of teach-in module included in LinuxCNC. I don’t know if it actually works.
[18:38:30] <zeeshan> not sure why its leaving that nub
[18:38:35] <Thomaxo_> i'll google that :O
[18:38:36] <zeeshan> maybe blade isn't perpendicular?
[18:38:44] <Tom_itx> you got something off
[18:38:48] <Thomaxo_> i mainly need the cnc to replace my faulty arm
[18:38:58] <Thomaxo_> to cut pieces for architectural models
[18:38:59] <zeeshan> i used the ruler technique to set center height
[18:39:09] <zeeshan> ruler was perpendicular
[18:39:14] <zeeshan> maybe i should put it slightly below center ?
[18:39:36] <zeeshan> maybe its rubbing at the front of the insert
[18:39:38] <zeeshan> not enough clearance
[18:39:51] <Tom_itx> make a tool setting height gage
[18:40:05] <zeeshan> too much work :(
[18:40:27] <zeeshan> actualkly a question i have is
[18:40:32] <zeeshan> if its slightly below center
[18:40:35] <zeeshan> lets say 15 thou
[18:40:37] <zeeshan> is that acceptable
[18:40:50] <zeeshan> i know 15 thou above center would be bad
[18:40:56] <zeeshan> cause like you're decreasing the front clearance
[18:41:32] <andypugh> These are pretty, and quite cheap, and quite good:
http://www.machine-dro.co.uk/edge-technology-speedy-lathe-gauge-4285.html
[18:41:33] <zeeshan> time to bust out cad
[18:41:53] <zeeshan> andypugh: assuming my lathe is level
[18:41:54] <zeeshan> haha
[18:42:22] <andypugh> The vial is adjustable for non-level lathes.
[18:44:50] <Thomaxo_> MDI might be perfect for me
[18:45:15] <zeeshan> andypugh: hmm
[18:45:41] <zeeshan> okay i think i was right about this parting tool business
[18:45:46] <zeeshan> http://i.imgur.com/Mieg5tX.png
[18:45:58] <zeeshan> if its too high, it rubs
[18:46:09] <zeeshan> if its too low, theres just more clearance
[18:46:19] <zeeshan> but youre gonna leave a nub
[18:46:25] <zeeshan> Hmm
[18:46:36] <Tom_itx> not if it's right
[18:46:45] <Tom_itx> not much of one if any
[18:47:18] <zeeshan> poor flank face
[18:47:24] <zeeshan> of my insert probably hates me
[18:49:44] <jdh_> what's the best way to get a square end face when parting a tube on a lathe?
[18:50:23] <zeeshan> go straight in
[18:50:24] <zeeshan> :)
[18:50:33] <zeeshan> http://i.imgur.com/UxoB1D9.png
[18:50:35] <zeeshan> updated the image
[18:50:38] <zeeshan> i messed up the angle before
[18:51:19] <Tom_itx> jdh_, sharp cutoff tool for sure
[18:52:57] <Tom_itx> /| flat toward the side you want nice
[18:53:42] <Tom_itx> generally it's |\ toward the stock
[19:00:29] <andypugh> jdh_: One way to square a tube…
https://picasaweb.google.com/108164504656404380542/CNCUnsorted?noredirect=1#5858692186241200882
[19:00:55] <andypugh> (that’s a specially made plug-centre)
[19:01:01] <zeeshan> thats one way to use your entire lathe
[19:01:02] <zeeshan> wow
[19:01:06] <zeeshan> what is that part
[19:01:15] <andypugh> It’s actually a table leg.
[19:01:19] <zeeshan> oh
[19:02:07] <Tom_itx> andypugh, does the plug have bolts to squeeze the plug inside the tube?
[19:02:22] <andypugh> No. It just fitted.
[19:02:57] <andypugh> I had a broken centre, so replaced the pount with a threaded stud. I make things to screw on as required.
[19:05:28] <Tom_itx> jdh_, sometimes when required on the old New Brittan's we would use a recess tool inside the tube to create a chamfer before cutoff too
[19:05:29] <zeeshan> andypugh: have you dealt with creep and stress relaxation
[19:05:52] <Tom_itx> on short parts of course
[19:10:27] <andypugh> zeeshan: Not really.
[19:10:37] <zeeshan> boo
[19:10:37] <zeeshan> :/
[19:10:45] <andypugh> I know they exist. That’s about it.
[19:11:23] <zeeshan> ive had some weird stuff going on in the lab
[19:11:24] <zeeshan> :/
[19:11:42] <andypugh> That’s why the lab exists
[19:12:14] <zeeshan> im indenting a polymer (polypropylene + polyethylene mix ) Tg < -10C
[19:12:18] <zeeshan> and smp.
[19:12:21] <zeeshan> both at room temp.
[19:12:29] <zeeshan> the smp goes back to its original shape in like 30 seconds
[19:12:47] <zeeshan> the polymer stays at the same shape even after 2 hours
[19:12:54] <zeeshan> but if i heat it to 100C, and recheck
[19:13:02] <zeeshan> its 85% to its original shape
[19:13:24] <zeeshan> not sure how the hell its remembering what its original shape was :(
[19:13:28] <zeeshan> it's not a shape memory polymer :/
[19:13:37] <andypugh> Are you sure about that?
[19:13:48] <andypugh> It seems to think it’s one.
[19:13:59] <zeeshan> yes, thats what the prof who worked on this material exclusively told me
[19:14:04] <zeeshan> its a pe pp copolymer
[19:14:13] <zeeshan> with the tg for pe at like -120c
[19:14:18] <zeeshan> and pp at -10c
[19:14:22] <Thomaxo_> you can get a 5 axis cnc with 1x1x1 meter work area for 7000 o.o
[19:14:23] <zeeshan> so im not even close to their transitioning temperatures
[19:14:44] <zeeshan> so i dont know whats going on
[19:14:48] <zeeshan> ive been stuck on this for 2 weeks
[19:15:04] <malcom2073> Thomaxo_: link?
[19:15:05] <zeeshan> to make myself feel better, im going back to regular tests like tensile, cup drawing :P
[19:15:13] <Thomaxo_> http://5axismaker.com
[19:15:23] <Thomaxo_> it seems to work with rhino + grasshopper
[19:15:31] <malcom2073> Hmm
[19:15:47] <malcom2073> Wouldn't be bad for milling out lost-foam shapes
[19:15:48] <Thomaxo_> for students that is 200euro, commercial that is 1000
[19:15:59] <Thomaxo_> true
[19:16:07] <malcom2073> I was about to bash it for being so lightweight
[19:16:10] <malcom2073> but for foam? who cares
[19:16:22] <zeeshan> lol
[19:16:25] <Thomaxo_> perfect for architecture :)
[19:16:35] <zeeshan> my problem with it is steppers :/
[19:16:39] <zeeshan> and no positional feedback
[19:16:42] <zeeshan> cant take a machine like that seriously
[19:16:45] <malcom2073> I like the idea, once open source software catches up with the CAM it'll be nice :-D
[19:16:55] <malcom2073> zeeshan: Not even for milling foam?
[19:17:16] <zeeshan> yes not even for foam
[19:17:28] <malcom2073> Are you complaining about steppers in general
[19:17:36] <malcom2073> or about the size of them in relation to that machine?
[19:17:45] <zeeshan> im complaining about not having positional feedback
[19:17:49] <malcom2073> a heh
[19:17:52] <malcom2073> my dads cnc mill doesn't seem to mind
[19:18:13] <tiwake> you cant know when the steppers slip
[19:18:27] <zeeshan> you can with encoders
[19:18:31] <malcom2073> Nope, which is why you have to understand your machine
[19:18:33] <zeeshan> but most of these cheap setups dont do it
[19:18:37] <malcom2073> Don't push it past what it can do
[19:18:54] <zeeshan> malcom2073: i used to think like that
[19:19:00] <zeeshan> but owning the lathe w/ stepper open loop
[19:19:02] <zeeshan> my mind has changed
[19:19:25] <malcom2073> zeeshan: I still think like that, because I see it work all the time. Optimum? Possibly not, but certainly doable without issue
[19:19:28] <malcom2073> :P
[19:19:42] <malcom2073> My mill is servo, which will be interesting, but steppers are so cheap
[19:19:42] <zeeshan> for 7000 i better get feedback ! :P
[19:19:55] <malcom2073> Psh, so replace the $200 worth of electronics with servos
[19:20:14] <R2E4> When using G0 (rapid) moves with G64 use caution on clearance moves and allow enough distance to clear obstacles based on the acceleration capabilities of your machine
[19:20:16] <malcom2073> Or, build your own, since thatl ooks like it's only about $1k worth of hardware
[19:20:26] <Thomaxo_> definitely a step in the right direction
[19:20:35] <Thomaxo_> i mean, from useless 3d printers to this
[19:20:37] <Thomaxo_> me likey
[19:20:38] <R2E4> zeeshan, so it is acting normal and I am not reacting to that statement.....lol
[19:21:05] <malcom2073> Thomaxo_: They have a 3d printer head for that machine, I think just for the media cred :P
[19:21:21] <Thomaxo_> heheh, true
[19:21:30] <malcom2073> Also, it's only 16" cubed
[19:21:39] <malcom2073> Somewhere I saw a much larger one, but I totally forget where
[19:21:52] <zeeshan> R2E4: what is your P word set to for g64
[19:21:57] <malcom2073> That gives me great ideas for a true 1 cubic meter foam milling machine..... I'll throw that on my whiteboard heh
[19:22:26] <Thomaxo_> might be a fun project
[19:22:40] <Thomaxo_> but i'll start with 3-axis first heh
[19:22:47] <malcom2073> Assuming I ever get my mill done, and assuming I make a foundry, and assuming I enjoy casting... etc etc.
[19:23:00] <malcom2073> Yeah, I'll start with a mill, then add a 4th axis and see what happens heh
[19:23:05] <tiwake> why would you get your own foundry?
[19:23:24] <malcom2073> tiwake: For casting small aluminum parts with lost-foam casting
[19:23:44] <malcom2073> CNC the foam, cast, cnc the result, less waste? I dunno.... seemed like a good idea at the time
[19:24:00] <tiwake> sounds like a lot of overhead when not conducting lots of business that uses it
[19:24:19] <malcom2073> I have a 3000lb cnc mill in my garage for "fun".
[19:24:23] <malcom2073> Let's not talk about overhead :)
[19:24:27] <Thomaxo_> https://www.youtube.com/watch?t=66&v=PqzNKKiLMBA
[19:24:36] <Thomaxo_> it does work with cheap software though..
[19:24:50] <Thomaxo_> cheap but awesome software*
[19:24:51] <malcom2073> Thomaxo_: yeah, cheap is a step in the right direction
[19:25:06] <malcom2073> I'm still hoping someday for good open source CAM :P
[19:25:31] <Thomaxo_> i found a python g-code preprocessor recently
[19:25:57] <malcom2073> Yeah, tried using it yet? :)
[19:26:03] <Thomaxo_> nope
[19:26:09] <Thomaxo_> still need to buy the cnc
[19:26:17] <tiwake> oh pycam... heh
[19:26:21] <malcom2073> Give it a shot. I gave up after it hit the 3 hour mark trying to generate gcode for a simple profile
[19:26:37] <R2E4> Dont kniow what the setting is at
[19:26:59] <Thomaxo_> well, it would mainly be used for a little idea i had
[19:27:14] <Thomaxo_> an algorithm to turn a jpg-image into a real painting
[19:27:29] <malcom2073> CNC controled brush strokes?
[19:27:36] <Thomaxo_> yep
[19:27:42] <malcom2073> That's be fairly awesome to watch
[19:27:50] <malcom2073> I'd lose hours on youtube for it +1 :P
[19:27:58] <Thomaxo_> :P
[19:28:19] <Thomaxo_> mixing might be a pain though
[19:28:59] <Thomaxo_> https://www.youtube.com/watch?v=LRDERxAk490 this is the first thing i'll probably do with it once i buy the cnc
[19:29:18] <jdh_> Tom_itx: an internal tool might be good for this for final end facing
[19:30:09] <zeeshan> has anyone seen a parting blade made out of carbide ?
[19:30:11] <zeeshan> not just the insert
[19:30:16] <zeeshan> for maximum rigidity
[19:30:17] <malcom2073> Pen plotting is always fun
[19:30:43] <Tom_itx> zeeshan, no
[19:30:50] <Tom_itx> not very practical really
[19:30:54] <zeeshan> why
[19:30:56] <_methods> parting is not a good one for a carbide bar
[19:30:56] <zeeshan> snaps?
[19:30:57] <Tom_itx> too brittle
[19:30:59] <_methods> the shock
[19:31:25] <_methods> parting is rough
[19:31:30] <zeeshan> why
[19:31:38] <R2E4> zeeshan:" Where can I find that parameter.... G54 p-word
[19:31:46] <zeeshan> g64 p-word
[19:31:48] <Valen> much tool rubbing
[19:31:57] <Valen> great extension
[19:32:00] <Valen> such chatter
[19:32:00] <R2E4> yeah, sorry 64
[19:32:01] <Valen> wow
[19:32:02] <zeeshan> R2E4:
http://linuxcnc.org/docs/html/gcode/gcode.html#sec:G64
[19:32:04] <malcom2073> Thomaxo_: Is that the machine you got?
[19:32:11] <Thomaxo_> i plan to
[19:32:24] <zeeshan> well youre going along Z
[19:32:26] <zeeshan> so its like drilling
[19:32:29] <Thomaxo_> affordable and pretty big
[19:32:31] <zeeshan> as long as your clearance is correct
[19:32:36] <malcom2073> Buddy of mine has a probotix fireball, similar machine
[19:32:41] <zeeshan> and its just a 3mm uncut chip thickness
[19:32:50] <zeeshan> .118" doc
[19:32:51] <zeeshan> er
[19:32:57] <zeeshan> .118" uncut chip thickness
[19:33:15] <zeeshan> like if you face something with a depth of .118
[19:33:19] <zeeshan> its almost the same situation no?
[19:33:19] <Thomaxo_> yeah does look similar
[19:33:28] <zeeshan> but i guess theres more tool in contact.
[19:33:29] <zeeshan> nm
[19:33:52] <malcom2073> He uses a crappy dremel on his, since he doesn't care much how accurate it is (for some reason), but overall it's a decent design for getting into stuff
[19:34:40] <Valen> zeeshan: like I said you also get a lot of tool rubbing
[19:34:48] <zeeshan> rubbing where?
[19:34:49] <Valen> and you have a long tool hanging out there
[19:34:51] <zeeshan> at the nose?
[19:34:52] <zeeshan> saides?
[19:34:54] <Valen> sides
[19:34:55] <zeeshan> *sides
[19:35:04] <zeeshan> but most inserts look like this:
[19:35:13] <zeeshan> ......... \___/
[19:35:22] <zeeshan> so there is like 3-4 degree side clearance
[19:35:29] <zeeshan> thats a front view
[19:35:32] <tiwake> malcom2073: something like this..
http://www.artcotools.com/e3000-series-0.98-25mm-diameter/
[19:36:15] <tiwake> NSK makes really really nice high speed rotory tools
[19:36:26] <Valen> I haven't seen an insert parting off tool
[19:36:35] <Valen> i presume they exist though
[19:36:36] <_methods> what?
[19:36:40] <zeeshan> ?
[19:36:43] <_methods> yeah i use them all day
[19:36:52] <Valen> just saying I haven't seen one was all
[19:36:54] <zeeshan> i dont think ive ever seen a non insert one :P
[19:37:03] <_methods> hss parting tool
[19:37:12] <_methods> they make regular parting blades
[19:37:15] <malcom2073> Heh, how much do those run tiwake?
[19:37:18] <Valen> http://www.newmantools.com/hufda.jpg
[19:37:19] <R2E4> that is in the gcode, meaning have to modify post.
[19:38:00] <R2E4> Is there a setting in LinuxCNC that sets default settiing for G64?
[19:40:23] <Thomaxo_> i found some porn for you guys:
https://vimeo.com/23998286
[19:42:56] <zeeshan> hmm
[19:43:00] <zeeshan> this is a nice page.
[19:43:02] <zeeshan> http://www.sandvik.coromant.com/en-gb/knowledge/parting_grooving/choice-of-application/parting-off/how-to-apply/pages/default.aspx
[19:43:05] <zeeshan> i really like this tip:
[19:43:13] <zeeshan> Always reduce feed by 75%, 2 mm (0.08 inch) before centre.
[19:43:33] <_methods> their machining book is like the bible
[19:44:08] <tiwake> malcom2073: uh, I think the driver and motor is something like $3,000-$4,000
[19:44:18] <zeeshan> To avoid breakage, stop feed 0.5 mm (0.02 inch) before reaching the centre and the cut-off part will drop due to its weight and length.
[19:44:19] <zeeshan> lol
[19:44:20] <zeeshan> good point
[19:44:32] <zeeshan> basically dont do what i was doing in my video
[19:44:36] <zeeshan> ramming the thing at full speed
[19:44:45] <tiwake> malcom2073: good up to something like 65k RPM, extremely quiet
[19:44:56] <malcom2073> Heh
[19:45:03] <malcom2073> A bit beyond anything I'd ever need
[19:45:16] <tiwake> there are engraving things I would love it for
[19:45:28] <tiwake> its like the perfect engraving spindle
[19:46:07] <tiwake> they make reducing gear boxes for it too
[19:46:22] <zeeshan> i have a practice question for the test on thu
[19:46:40] <zeeshan> that asks "explain why exit angles are important"
[19:46:41] * Jymmm makes note... "zeeshan: basically dont do what i was"
[19:46:44] <_methods> https://sandvik.csod.com/LMS/catalog/Welcome.aspx?tab_page_id=-67&tab_id=20000178
[19:46:54] <zeeshan> reversal of compressive to tensile stresses
[19:46:56] <zeeshan> is the answer!
[19:47:05] <zeeshan> _methods: username/pass? :-)
[19:48:35] <_methods> zeeshan/isgay
[19:48:49] <zeeshan> didnt work
[19:48:52] <_methods> hahahha
[19:49:40] <_methods> they used to give you a hardback book
[19:49:46] <_methods> let me see if i can find mine
[19:49:51] <zeeshan> http://www.amazon.ca/Modern-Metal-Cutting-Practical-Handbook/dp/B000ARWOFM
[19:49:52] <zeeshan> that one?
[19:50:43] <_methods> yep
[19:50:46] <_methods> that's the one
[19:50:58] <zeeshan> http://www.sandvik.coromant.com/en-gb/services/education/pages/e-learning.aspx
[19:50:59] <zeeshan> free course
[19:52:08] <_methods> http://i.imgur.com/ISmdhTQ.jpg
[19:52:15] <_methods> i always keep it near by
[19:54:03] <zeeshan> _methods: have you cut 304 before
[19:54:11] <_methods> lol of course
[19:54:16] <zeeshan> like mill it
[19:54:20] <zeeshan> i need recommendation
[19:54:25] <zeeshan> ive never milled it before
[19:54:27] <zeeshan> only turned
[19:54:33] <_methods> carbide is your friend
[19:54:37] <zeeshan> im cutting exhaust flanges out of 1/2" 304
[19:54:58] <Tom_itx> same principles apply
[19:54:58] <Valen> if its like 316 don't take light cuts
[19:55:04] <Tom_itx> don't work harden it
[19:55:09] <zeeshan> i know gr
[19:55:13] <zeeshan> gimme a sec
[19:55:51] <Thomaxo_> good night!
[19:56:20] <_methods> honestly i really don't have mnay problems machining 304 its mainly a problem tapping
[19:57:21] <_methods> i used to have to make these spray nozzle bars that went into a descaler at nucor steel
[19:57:31] <_methods> they were 2 8' long 304ss pipes
[19:57:59] <zeeshan> http://gyazo.com/74b031e5406f6d57270012d612212481
[19:58:00] <_methods> 3" diameter with bosses welded on staggered every 12"
[19:58:10] <_methods> and the pipes were welded together
[19:58:13] <zeeshan> im worried about the pocketing part
[19:58:20] <zeeshan> should i be pocketing
[19:58:25] <_methods> and i had to deck the bosses and tap them for the nozzles
[19:58:25] <zeeshan> or contour milling it
[19:58:34] <_methods> that sucked from all the welding hardening the 304
[19:59:28] <_methods> i have no idea but your toolpaths suck balls
[19:59:29] <_methods> lol
[19:59:43] <zeeshan> haha
[20:00:32] <_methods> but that should machine just fine
[20:00:57] <zeeshan> whoops
[20:01:05] <zeeshan> i had something setup wrong in the cam
[20:01:05] <zeeshan> hahah
[20:01:18] <_methods> i'd say so lol
[20:01:22] <zeeshan> should i be helical milling down
[20:01:24] <zeeshan> for the pockets
[20:01:31] <_methods> i have no idea
[20:01:35] <Tom_itx> i'm not sure i would in SS
[20:01:37] <zeeshan> how much ipt and feed
[20:01:38] <_methods> i don't know what you're making or what tools you have
[20:01:43] <zeeshan> you know what i have
[20:01:46] <zeeshan> im using that mitsu cutter
[20:01:47] <zeeshan> the ajx
[20:01:49] <zeeshan> .75"
[20:01:59] <zeeshan> i also have the yg1 carbide cutters
[20:02:02] <zeeshan> 3/8 and 1/2"
[20:02:17] <_methods> well i have no idea how big that part is
[20:02:19] <zeeshan> but idont want them to die after 2 flanges
[20:02:21] <_methods> how thick it is
[20:02:34] <_methods> what dia the pockets are
[20:02:38] <_methods> how you;re holding it
[20:02:41] <zeeshan> its about 17" by like 2.875
[20:02:43] <zeeshan> fixture
[20:02:45] <zeeshan> through the bolt holes
[20:02:58] <zeeshan> pockets are 1.685"
[20:02:59] <zeeshan> dia
[20:03:01] <_methods> what bolt holes
[20:03:10] <zeeshan> you dont see em in the cam
[20:03:15] <zeeshan> but they are there .. lemme post a pic
[20:03:29] <zeeshan> this is actually the fixture machining youre seeing
[20:03:35] <zeeshan> the flange machining is very similar
[20:03:42] <zeeshan> my gif stupid thing wont save a longer gif
[20:04:10] <_methods> well i wouldn't use the ajxu
[20:04:19] <_methods> you have a couple apx';s though right?
[20:04:25] <zeeshan> i meant apx
[20:04:26] <zeeshan> not ajxu
[20:04:29] <_methods> k
[20:04:33] <zeeshan> ajx is the face mill
[20:04:33] <_methods> yeah the apx's should be fine
[20:04:37] <zeeshan> not used to the lingo
[20:04:37] <zeeshan> :D
[20:04:43] <_methods> the ajx is a high feed cutter
[20:04:47] <_methods> not a face mill
[20:05:11] <_methods> it's made for removing material
[20:05:27] <R2E4> Anyone using Aspire with EMC2?
[20:05:48] <zeeshan> is 75% step over okay?
[20:05:58] <_methods> sure
[20:06:22] <_methods> i usually stick around 65
[20:06:34] <_methods> 75 if i'm feeling froggy
[20:06:43] <_methods> depends on what i'm doing too
[20:07:16] <_methods> but for the looks of that part you should be fine just leave a good cleanup
[20:07:36] <_methods> leave like .05" wall or so
[20:07:55] <_methods> take a nice finish pass on all the contours with a cutter that leaves a nice finish and you should be good to go
[20:09:27] <_methods> i always learned to never use 50% stepover
[20:09:32] <zeeshan> why
[20:09:35] <_methods> not good to hit the tool on centerline
[20:09:43] <_methods> i don't know if it's true or not
[20:09:51] <_methods> but always stay off 50
[20:09:51] <zeeshan> he mentioned something about this in class
[20:09:57] <zeeshan> oh i know why
[20:10:11] <zeeshan> its somethign to do with up and down milling
[20:10:20] <_methods> yeah i guess you're doing both
[20:10:24] <zeeshan> yea
[20:10:29] <_methods> when you're right on centerline
[20:10:44] <_methods> basically the same as taking a full engagement cut
[20:10:55] <_methods> the chips probably go both directions
[20:11:49] <Tom_itx> probably especially true with an odd tooth cutter
[20:11:54] <zeeshan> what is better
[20:11:59] <zeeshan> pocket milling
[20:12:03] <zeeshan> or contouring through a slot
[20:12:16] <_methods> not sure if it matters
[20:12:38] <zeeshan> http://www.maperformance.com/images/D/LS-Exhaust-Flanges.jpg
[20:12:45] <zeeshan> imagine that flange starting from a rectangular piece
[20:12:59] <zeeshan> im wondering if youll get a longer tool life by contouring the outside of that
[20:13:03] <zeeshan> or cleaning it out in a pocket form
[20:13:07] <zeeshan> in pocket form you'll get a lot more chips
[20:13:26] <zeeshan> and if you decided to just slot through it
[20:13:31] <zeeshan> youd get a lot more head i'd think
[20:13:35] <_methods> i'd just contour it
[20:13:40] <Tom_itx> we would contour it
[20:13:51] <zeeshan> so you would remove all of the outside of it as chips
[20:13:57] <zeeshan> not just one solid chunk
[20:13:58] <Tom_itx> the pieces will break out as you come out of the pockets
[20:14:05] <Tom_itx> no
[20:14:36] <Tom_itx> i'd cut a path around the contour about .020" off the final dimenson
[20:14:40] <Tom_itx> then finish it
[20:15:04] <_methods> yeah and if you have any problems with the scrap then you might have to do something
[20:15:24] <_methods> if it hangs on the cutter it can be bad
[20:15:41] <Tom_itx> yeah most of the time it will fall out of the way
[20:15:42] <_methods> you might be able to add something to your fixture to keep that from happening though
[20:15:48] <Tom_itx> or a good blast of air will clear it
[20:15:49] <_methods> if its a problem
[20:16:22] <_methods> why don't they just laser that?
[20:19:54] <zeeshan> i was thinking of lasering it
[20:20:00] <zeeshan> but i need to do some depth features on it
[20:20:10] <zeeshan> and port match
[20:20:18] <zeeshan> i was thinking cutting a laser cut edge would be a lot worse
[20:20:22] <zeeshan> cause of the haz
[20:20:28] <zeeshan> http://gyazo.com/805258ad4ad1f2f1d449ad884d91bf0a
[20:20:34] <zeeshan> im digging this high speed machining path
[20:20:37] <zeeshan> its a bunch of circles
[20:20:45] <_methods> that haz on laser for that thin would be like .005
[20:21:57] <_methods> what is that like .1875" thick?
[20:22:29] <_methods> .25"
[20:25:58] <zeeshan> .5"
[20:26:19] <_methods> oh nm
[20:26:31] <_methods> don't laser that lol
[20:26:47] <zeeshan> i have lasered something similar in the past
[20:26:52] <zeeshan> and boy is that shit hard to machine
[20:27:06] <zeeshan> i got them to laser cut the holes to tap drill size
[20:27:08] <zeeshan> and i tried to tap it after
[20:27:09] <_methods> yeah that thick on the laser you'll end up with a fair amount of haz
[20:27:14] <zeeshan> that was REALLY hard hahah
[20:27:32] <_methods> yes tapping 304 after applying heat is bad
[20:27:42] <zeeshan> so after that experience , i got them to cut a much smaller starting hole
[20:27:47] <zeeshan> just for location
[20:28:03] <zeeshan> and then i drilled it with m42 and then tap
[20:28:21] <zeeshan> more work , but no broken tap teeth
[20:28:46] <_methods> yeah that's when some anchorlube comes in handy
[20:29:33] <zeeshan> i wish i had my coolant setup working
[20:29:35] <zeeshan> there is no tank
[20:29:41] <zeeshan> and no collection tank
[20:29:45] <zeeshan> so itll piss all over the floor
[20:29:56] <zeeshan> i really dont wanna kill the 1/2 carbide end mill
[20:29:58] <zeeshan> it was expensive
[20:30:16] <zeeshan> if i can cut 6 flanges out of it, then it can die
[20:30:27] <Tom_itx> i'm not sure about running carbide dry in SS but we ran it dry alot in Al
[20:31:07] <Tom_itx> i suppose you're better off with coolant
[20:31:14] <_methods> if you can run without coolant completely than it's worth doing
[20:31:31] <_methods> but it's when you get coolant in there when you're running dry that will screw you
[20:31:44] <zeeshan> thermal fatigue?
[20:31:50] <_methods> i've found that if i'm running dry i have to run ALL dry
[20:31:51] <zeeshan> boom goes the edge?
[20:31:55] <_methods> no coolant on any cycles
[20:32:09] <_methods> so basically any part with drilling i rule out for running dry
[20:32:27] <_methods> but if i have a part that's all milling i'll try and run all dry
[20:33:02] <_methods> anyways good luck i'm goin to bed
[20:33:08] <zeeshan> cu! thanks for the help
[21:29:16] <tjtr33> 'join #linxucnc-devel
[21:29:25] <tjtr33> haha
