#linuxcnc | Logs for 2016-10-08

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[00:00:19] <Jymmm> price of ALL hardware is expensive these days
[00:00:25] <andypugh> Zapp nuts are not super-cheap: http://www.zappautomation.co.uk/r14-02t3-fsd-ballnut.html
[00:01:49] <andypugh> (And Zapp just resell either Gten or even more generic chines screws)
[00:02:04] <Erant> I haven't looked at Roton in a bit...
[00:03:03] <andypugh> But, I have never, in my entire career wanted holes more ccurately spaced than 0.25 mm / 1000mm
[00:03:52] <Jymmm> andypugh: Not even for your Tea Strainer? ;)
[00:03:53] <andypugh> I think hobby-builders chase more accuracy than they have any use for.
[00:04:28] <Erant> Sure
[00:04:33] <andypugh> Jymmm: You seem to be mistaking me for an archetype
[00:04:42] <Erant> Roton's actually not that bad.
[00:05:18] <Jymmm> andypugh: Hey, I'm just steroetyping ya, bite me! =)
[00:06:02] <Jymmm> andypugh: Silly autocorrect... Have a nice day =)
[00:07:31] <Erant> Yeah, Roton's not bad. 9/16x0.083" ballnut + 24" ballscrew for about $80.
[00:07:37] <Erant> Though now I gotta see if that fits
[00:08:07] <Jymmm> Erant: $80?! OUCH
[00:09:19] <Erant> Jymmm: If you've got 'm cheaper...
[00:09:49] <Jymmm> Erant: 5/8 work?
[00:10:50] <Erant> Jymmm: Eh. It might. It all depends on the nut.
[00:11:06] <Erant> I'm not opposed to modifying my slide either, at this point.
[00:11:16] <Jymmm> Erant: http://www.ebay.com/itm/Rexroth-Ball-Screw-19-75-Thread-Length-5-8-lead-/131444447757
[00:12:56] <Jymmm> Erant: ACME... http://www.ebay.com/itm/5-8-10-Stainless-Acme-Leadscrew-24-RBC-Bearing-PIC-Design-Lead-Screw-cnc-/381799558798
[00:13:45] <Erant> If I'm going to replace my lead screw, it's going to be a ball screw ;)
[00:14:01] <Cromaglious_> I'm looking for a 1-3/4"-8tpi nut to make a collet chuck for my lathe... any ideas
[00:14:42] <Cromaglious_> or I'll wait until I get a new lathe and buy a collet chuck with it
[00:14:55] <Erant> Cromaglious_: Euh. ... Turn it on the lathe?
[00:15:18] <Cromaglious_> then I have to buy a boring bar and threading inserts
[00:16:00] <witnit> for something that diameter you should be able make your own boring tool
[00:16:46] <Cromaglious_> well I'll have to get my wife to take me to the metal yard then for some stocl
[00:16:50] <Cromaglious_> stock
[00:17:35] <Cromaglious_> my lathe is a crappy 1945 sheldon war production overhead belt
[00:17:44] <Jymmm> Erant: Fine, see how you are... wanting to put in all that effort and just use a plastic screw... you ungrateful bastard!!! Eeeeesh
[00:18:21] <Erant> Jymmm: Haha. I'm probably going to just get a Chinese 12mm x 4mm ball screw.
[00:18:27] <Erant> They're like, $30.
[00:18:42] <witnit> Cromaglious_: like this? http://www.practicalmachinist.com/vb/attachments/f19/105404d1398106758-any-sheldon-lathe-fans-sheldon_clean.jpg
[00:19:38] <Jymmm> Erant: I actually saw a very nice design for a anti backlash nut for acme; it was pretty strait forward too. used a spring I'd find in drum brakes
[00:20:32] <Erant> Jymmm: I'm a little annoyed by the shitty efficiency in fine-pitch ACME threads.
[00:20:51] <Erant> Not that I need the extra power... But 50% loss is 50% loss.
[00:20:55] <Jymmm> Erant: 10TPI is fine pitched?
[00:23:27] <Erant> I've got 20TPI right now
[00:23:46] <Erant> But 10TPI's still like 60-70% efficiency
[00:24:19] <witnit> what do you guys mean by efficiency?
[00:28:11] <Erant> Actual rotational energy translated into linear energy
[00:28:15] <Erant> The rest is heat.
[00:33:32] <Erant> So apparently the cheap ballnut is the SFU series.
[00:33:45] <Erant> Which is 1204 and up.
[00:34:08] <Erant> SFK is for smaller pitch and smaller diameter, and that one they don't make cheaply.
[00:35:47] <Erant> 4mm pitch is 6.35TPI, so I can go... 800IPM :P
[00:48:08] <Erant> Let's see if I can find any on Alibaba instead.
[00:58:19] <FloppyDisk525> What's 2 tea lime juice? Looks good:-) Although, no pic:-)
[00:59:41] <FloppyDisk525> https://www.aliexpress.com/item/Free-shipping-SFU1605-L1000mm-rolled-ball-screw-C7-with-1605-flange-single-ball-nut-for-BK/32347802374.html?scm=1007.13338.49932.0&pvid=a75f77dd-3214-4b59-b35e-5397cc5277f5&tpp=1
[00:59:43] <Cromaglious_> yep pretty much...
[01:00:13] <Cromaglious_> I have the bench feet, not the tall legs
[01:00:22] <FloppyDisk525> Here's a ball screw, $23 bucks free shipping: https://www.aliexpress.com/item/Free-shipping-SFU1605-L300mm-rolled-ball-screw-C7-with-1605-flange-single-ball-nut-for-CNC/32347483458.html
[01:00:35] <Cromaglious_> 48" bed (22 between centers
[01:00:59] <FloppyDisk525> I have thought about cnc my little lathe, thought of trying an aliexpress ball screw... No time, though.
[01:01:27] <Cromaglious_> found a stepper to replace my Y stepper with 3.6v 2a
[01:02:21] <Erant> FloppyDisk525: Yeah, I know. Nut's too big to fit between my X and Y slides.
[01:02:54] <FloppyDisk525> grrr on that one! Sorry.
[01:03:06] <Cromaglious_> witnit, plain bearing headstock
[01:04:03] <Cromaglious_> darn it out of good tea... time for some P&G
[01:04:57] <Cromaglious_> headstock thread is a 1-3/4"-8tpi. i only have a 4 jaw chuck for it
[01:22:11] <XXCoder> https://www.youtube.com/watch?v=UvCB3_KtSz0&feature=em-subs_digest-vrecs n=ice!
[02:15:27] <XXCoder> FINALLY!
[02:15:28] <XXCoder> https://www.youtube.com/watch?v=O_M_e6ulOhc
[02:15:34] <XXCoder> new video feom that guy
[02:31:33] <Deejay> moin
[03:46:21] <archivist> Cromaglious_, you hand grind the thread boring tool, no need to buy
[04:54:57] <XXCoder> JT-Shop: https://www.thingiverse.com/make:258534 heh
[04:55:06] <XXCoder> failed print but damn awesome object
[05:29:48] <jthornton> I printed this last night http://www.thingiverse.com/thing:1486233
[05:29:54] <jthornton> wonder how it came out...
[05:30:16] <XXCoder> you left machine printing?
[05:30:42] <archivist> fire!
[05:31:44] <XXCoder> my machine is having hard time trying to reach 90c bed temp heh
[05:33:06] <jthornton> yea last time I checked it was almost done
[05:33:14] <jthornton> why 90C bed temperature
[05:33:23] <XXCoder> petg trying to get it to stick
[05:33:43] <jthornton> you using heat with blue tape?
[05:34:51] <XXCoder> yeah
[05:35:12] <XXCoder> testing stuff, plan to try zero bed (room temp) later
[05:36:26] <XXCoder> its wokinh
[05:36:28] <XXCoder> working
[05:37:21] <jthornton> I read somewhere that if you use heat you don't use the blue tape
[05:37:34] <jthornton> I've been printing on the alum
[05:37:49] <XXCoder> yeah I didnt wanna remove tape lol
[05:38:34] <XXCoder> wow its going good
[05:40:28] <pink_vampire> paper tape.. heater.. what could possibly go wrong.....
[05:40:48] <XXCoder> paper self-igninates at 451F
[05:40:52] <XXCoder> plenty of room :D
[05:41:07] <XXCoder> opr 451F forgot
[05:41:10] <XXCoder> er 451C
[05:42:09] <jthornton> I got the kit pla to print with 215c first layer and 210 rest with 70c bed first layer and 65c for rest
[05:42:56] <XXCoder> really? I was using 50c for bed. may be why I always get bit rough pla first layer
[05:43:16] <jthornton> I tried to change the scale and upload the sketch but it would not compile so I got a fresh copy of marlin and made the changes and uploaded it then the lcd didn't work so I figured out I needed and older version of ardunio
[05:44:18] <jthornton> yea didn't stick so good with lower temps, also I had to to 3 rings around the part to get the pla to extrude correct at the start of the part
[05:44:30] <jthornton> but I think I can cut that down to 2 rings
[05:45:15] <XXCoder> 2 rings here, so 70c bed eh
[05:45:22] <XXCoder> I plan try that later
[05:45:30] <XXCoder> see if finally get silk smooth bottom
[05:53:10] <XXCoder> man print looks vcery good
[05:54:12] <XXCoder> jthornton: how hot bed can yours go to? mine seem to limit to 86.6
[05:54:17] <XXCoder> er 86.5
[05:54:44] <XXCoder> 86c now
[05:54:58] <XXCoder> rising now actually
[05:55:13] <XXCoder> seem it keeps trying but cant stay stable at 90c lol
[05:56:11] <jthornton> I don't know how hot it will get, just went to 70c and it was a bit slow getting the last few degrees
[05:56:45] <XXCoder> you can help it a little
[05:56:50] <XXCoder> lay paper over top
[05:57:00] <XXCoder> remove it before it prints. it will cool slowly
[05:58:19] <jthornton> https://www.aliexpress.com/item/24V-3D-Printer-Heated-Bed-300-300MM/1662604178.html
[05:59:00] <jthornton> http://forums.reprap.org/read.php?4,329805
[06:00:46] <jthornton> I want to build a 400 x 400 x 400
[06:01:03] <jthornton> with linear rails
[06:01:31] <archivist> for my bluing oven, I used a hotplate ring and a thermocouple controller on an al plate
[06:02:00] <archivist> with insulation under
[06:02:22] <XXCoder> arch yeah im considering how to isulate bottom too.
[06:02:23] <jthornton> got a photo of it?
[06:02:43] <archivist> same problen just higher up the hot scale :)
[06:02:43] <XXCoder> some people said cardboard (like cereal box) with kaptop tapes would isulate it well
[06:02:45] <jthornton> get some rock wool
[06:03:08] <jthornton> there is lots of room under the bed for a layer of insulation
[06:03:24] <archivist> I used fire brick because I could
[06:03:31] <malcom2073_> XXCoder: Switch to 24v for the bed. Gets much hotter much faster :-D
[06:03:32] <XXCoder> rock wool. sounds abusive lol
[06:03:45] <XXCoder> malcom2073_: use same RAMPS board?
[06:03:59] <malcom2073_> XXCoder: There are forum topics on it, you may have to replace the capacitor if it's a chinese ramps
[06:04:07] <XXCoder> chinese
[06:04:09] <malcom2073_> Get an external heat controller
[06:04:13] <archivist> http://www.collection.archivist.info/searchv13.php?searchstr=bluing bottom two images
[06:04:17] <malcom2073_> Rather than using ramps for it
[06:06:00] <archivist> cooker ring and external controller, no arrrrrweeeeenies needed
[06:06:34] <jthornton> nothing wrong with that
[06:06:44] <jthornton> sand in the box?
[06:06:57] <archivist> yes
[06:07:03] <jthornton> http://www.lowes.com/pd/Roxul-Wood-Stud-R15-59-7-sq-ft-Unfaced-Stone-Wool-Batt-Insulation-with-Sound-Barrier-15-25-in-W-x-47-in-L/3388304
[06:07:16] <jthornton> that's what I'll use for the powder coat oven
[06:07:22] <XXCoder> nice jthornton
[06:07:24] <XXCoder> er archivist
[06:07:58] <archivist> the fire bricks were off ebay
[06:08:42] <jthornton> I get them from the local tractor supply store for my stove in the shop... which reminds me time to clean it out and get ready to burn wook
[06:08:47] <archivist> http://www.ebay.co.uk/itm/10-x-Vermiculite-Villager-stove-fire-brick-4-5-x-9-/270924434125
[06:08:48] <jthornton> wood even
[06:08:56] <XXCoder> wookies and wood
[06:08:58] <XXCoder> youre not nice
[06:09:09] <jthornton> 48f outside
[06:09:57] <jthornton> http://www.omega.com/pptst/KHR_KHLV_KH.html
[06:10:04] <archivist> thicker the al the better heats distribution
[06:10:28] <XXCoder> mine I guess 5 mm or so. not very thick.
[06:10:55] <archivist> hmm seat warmer
[06:13:10] <jthornton> looks like the biggest one is 300 x 300 but under an alum plate that should work fine
[06:14:09] <archivist> if the plate is doing the spreading the source matters less
[06:14:47] <jthornton> yea and alum spreads heat fast just ask my burned fingers
[06:15:21] <XXCoder> thicker alum slab with glass
[06:15:27] <XXCoder> glass would warm slower so more even
[06:15:48] <jthornton> https://www.aliexpress.com/item/silicone-3d-printer-heated-bed-400mm-x-400mm-24v/32416353427.html
[06:22:08] <archivist> XXCoder, nah dont think glass would help
[06:22:53] <XXCoder> it usually does for 3d printing
[06:23:22] <XXCoder> https://www.youtube.com/watch?v=cM98Vencdwo
[06:32:56] <JT-Shop> http://gnipsel.com/images/prusa-i3-clone/
[06:33:49] <JT-Shop> http://gnipsel.com/images/prusa-i3-clone/Atomic-hub-01.jpg
[06:34:04] <JT-Shop> I guess printing on air is not a good plan lol
[06:35:45] <JT-Shop> my guess is the top ring should have had some gussets under to work up to the ring
[06:40:36] <XXCoder> suppoirts yeah
[06:52:18] <JT-Shop> https://www.youtube.com/channel/UCjOe4VxKL86HyVrshTmiUBQ
[06:53:04] <XXCoder> interesting
[06:58:52] <XXCoder> JT-Shop: one sad thing is no captions
[06:59:43] <JT-Shop> how can I get a bit more extruded on the first layer?
[06:59:54] <XXCoder> oh its at slic3r setting
[07:00:05] <XXCoder> hmm print setting, first layer set to %
[07:00:11] <XXCoder> mines 120% I think
[07:00:15] <XXCoder> no 150%
[07:00:26] <JT-Shop> ok
[07:00:40] <JT-Shop> I'm using slic3r and pronterface now
[07:02:16] <JT-Shop> first layer height?
[07:02:48] <XXCoder> at advanced, printer setting yea
[07:02:55] <XXCoder> er printer setting, advanced I mean
[07:03:37] <JT-Shop> I have printer setting > advanced first layer 200%
[07:15:44] <MacGalempsy> good morning
[07:26:41] <_methods> pete not back on yet eh?
[07:27:10] <MacGalempsy> just got on. he is usually around in the evenings
[07:27:26] <_methods> well i was wondering how he did thru the hurricane
[07:27:32] <_methods> guess he's probably without power still
[07:27:48] <_methods> the eye is about to hit us now
[07:28:10] <_methods> movin kinda slow though so i guess it might be a few hours before it's past us
[07:28:59] <MacGalempsy> the power outage map says less that 100 ppl without power
[07:29:15] <MacGalempsy> in tampa
[07:29:46] <_methods> yeah i was wrong he's in port st lucie
[07:29:53] <_methods> i thought he lived in new port richie
[07:30:34] <_methods> he was right in some of the hardest hit areas
[07:31:24] <MacGalempsy> oh. someone said tampa, but idk
[07:33:53] <MacGalempsy> i thought the huricanne went up the east coast, off shore
[07:36:35] <MacGalempsy> news shows 57 houses and businesses were damaged, looks like a few rooves ripped off
[07:37:36] <MacGalempsy> powerpoles knocked over onto buildings. it does appear to be any leveling
[07:37:50] <MacGalempsy> does = doesn't
[08:51:54] * Tom_itx would swear this has turned into a reprap channel
[08:53:09] <archivist> I am a repcrap free zone
[08:55:04] <JT-Shop> lol
[08:55:23] <Tom_itx> you need a hotter bed, get a 110v pail heater
[08:55:39] <Tom_itx> with a control of course
[08:55:41] <JT-Shop> there is a need for #reprap-nosmartass channel
[08:56:01] <Tom_itx> they just won' make me an op :)
[08:56:24] <JT-Shop> https://www.aliexpress.com/item/Silicone-Heater-Bed-24V-400-X-400MM-For-Kossel-Pro-3D-Printer-Install-wih-100K-Thermistor/1982371597.html?spm=2114.01010208.3.2.NFmytP&ws_ab_test=searchweb0_0,searchweb201602_1,searchweb201603_3&btsid=8456686c-9d27-452a-b157-3f34153cf9f8
[08:56:24] <MacGalempsy_> JT-Shop: how is the printing going?
[08:56:36] <JT-Shop> pretty good actually
[08:56:52] <MacGalempsy_> have you done any of the bridge tests yet?
[08:57:06] <JT-Shop> just starting a print now for some filament hubs
[08:57:19] <JT-Shop> no, still using the chinlee filament
[08:57:37] <Tom_itx> you may need an alternate 12v supply if you start changing things
[08:58:19] <JT-Shop> I'm building one from scratch for a 400mm x 400mm x 400mm cube
[08:58:39] <JT-Shop> using my other ramps 1.4 and the Bulldog XL extruder
[08:58:53] <SpeedEvil> Do a 400mm*400mm*400mm*400mm one!
[08:59:34] <Tom_itx> they've got a ~3' x 3' one at the Uni
[08:59:56] <JT-Shop> dang that is big...
[08:59:57] <Tom_itx> be careful... you get too big a print it gets alot harder to get it off the table
[09:00:14] * JT-Shop gets a calculator to see how big 400mm is
[09:00:29] <MacGalempsy_> 1.33ft
[09:01:01] <SpeedEvil> Tom_itx: dependant on nozzle size
[09:01:31] <Tom_itx> they printed a vase 1 filament thick
[09:01:37] <JT-Shop> can't you ramp up the bed temperature to get it off?
[09:01:49] <SpeedEvil> integral bandsaw
[09:01:52] <Tom_itx> i dunno, i suppose
[09:03:34] <Tom_itx> http://tom-itx.no-ip.biz:81/~webpage/cnc/temp/prints/plastic_prints.jpg
[09:03:40] <Tom_itx> a few things they've done
[09:04:22] <Tom_itx> they use all sorts of materials
[09:04:51] <MacGalempsy_> got a few of the octopii myself
[09:05:39] <Tom_itx> the timing belt was a replacement for a machine
[09:05:54] <Tom_itx> some type of tough flexible material
[09:08:46] <JT-Shop> it would be cool to print some parts to be cast in alum
[09:09:43] <JT-Shop> print the part add sand and ceramic then put in the kiln to harden the ceramic and melt out the plastic
[09:11:54] <MacGalempsy> Sounds fun.
[09:13:11] <MacGalempsy> jt what kind of cement did you use on your furnace?
[09:21:16] <JT-Shop> red devil castable refractory cement
[09:21:38] <JT-Shop> good to 2400f next one I'll use the higher rated refractory
[10:18:32] <MacGalempsy> we are going to try mixing the raw ingredients to make the cement
[10:26:37] <Erant> Have fun :P
[10:27:45] <MacGalempsy> a
[10:28:05] <MacGalempsy> Erant: always, or else it would be work
[10:28:21] <tiwake> not a big deal... concrete is a well developed building material
[10:29:24] <Erant> So is steel, I still manage to f' that up on a regular basis.
[10:29:47] <tiwake> Erant: you do steel casting?
[10:30:01] <Erant> Machining. :P
[10:30:07] <tiwake> oh, thats different
[10:30:28] <Erant> I never said HOW I fucked it up.
[10:30:35] <tiwake> I'd equate making steel more analog to anodizing or cooking
[10:30:54] <tiwake> analogous?
[10:31:00] <Erant> I got you.
[10:31:11] <MacGalempsy> there is a site with a recipe for the cmnt. 1.5x portland, 2x play sand, 1.5x perlite, 2x bemtonite
[10:31:17] <Erant> I need to learn how to anodize. Or rather, get the setup.
[10:31:19] <MacGalempsy> by volume
[10:31:28] <Erant> MacGalempsy: Oh man, it's like making breakfast :)
[10:31:37] <tiwake> MacGalempsy: just don't use beach sand... lol
[10:32:55] <tiwake> or river rocks
[10:35:30] <MacGalempsy> running all the calcs took a while, but basically it comes down to $3.06 per gallon
[10:36:02] <tiwake> MacGalempsy: you going to mix in some dye or fiberglass fibers?
[10:36:14] <tiwake> or both
[10:36:30] <MacGalempsy> the red devil is $28/gal
[10:36:56] <tiwake> and a gallon will dye a lot of concrete?
[10:37:07] <MacGalempsy> the recipe didnt say anything about those additives
[10:37:23] <MacGalempsy> how do they help?
[10:38:22] <tiwake> MacGalempsy: makes it rather strong... though as far as I know its typically used in stuff like parking lot garages... multi-story stuff
[10:38:43] <tiwake> might help with preventing cracking?
[10:38:50] <tiwake> hmm, probably would
[10:39:59] <tiwake> http://www.concreteexchange.com/how-to-center/concrete-mixes-and-additives/mixing-fiber-reinforced-concrete/ seems useful
[10:41:11] <tiwake> ah yeah... they are even using dye
[10:41:38] <tiwake> MacGalempsy: you know what is really sexy is dyed concrete, then acid stained
[10:42:10] <MacGalempsy> https://flic.kr/p/M3m1dg here is the lid ready to pour
[10:42:44] <tiwake> MacGalempsy: or quartz gravel layered on the surface right after pouring, and sanded smooth after dry
[10:43:29] <MacGalempsy> tiwake: its a furnace, not a bachelor pad
[10:43:41] <tiwake> oh, not pouring a floor?
[10:44:01] <tiwake> pimp my furnace? :D
[10:59:15] <Jymmm> tiwake: Done... https://imgur.com/a/TwY6q
[10:59:43] <Jymmm> tiwake: YOu now have the hottest furnance on the planet
[11:08:27] <Tom_itx> MacGalempsy what are all the screws for?
[11:26:16] <MacGalempsy> tom_itx: they are rebar for the concrete. so the cement doesnt fall out when lifting the lid
[11:35:43] <CaptHindsight> Jymmm: yeah, but who wants to move to Russia, you can never trust the Russians
[12:24:08] <tiwake> Jymmm: lol... so hot it will literally melt your imagination and is in the tier of science fiction
[12:26:33] <tiwake> CaptHindsight: I don't need to move to russia to have a nice furnace, thankfully
[12:29:31] <CaptHindsight> tiwake: whats the internal volume of the furnace you are building?
[12:30:22] <tiwake> CaptHindsight: I'm not, I thought MacGalempsy was
[12:30:42] <CaptHindsight> tiwake: sorry, was just skimming the backlog
[12:30:49] <tiwake> CaptHindsight: why would I build a furnace here in texas? all I need to do is walk outside
[12:31:04] <tiwake> :D
[13:00:20] <CaptHindsight> 57F here today and sunny, perfect weather
[13:02:58] <CaptHindsight> archivist: http://www.antiquerestorers.com/NEW/CLOCK.htm
[13:17:10] <Cromaglious_> 61F in the kitchen.. bit warmer out back...
[13:31:36] <Cromaglious_> damn bit... steppers have 5/16" shafts
[13:32:56] <Cromaglious_> all my other ones are 1/4"
[13:38:16] <SpeedEvil> Cromaglious_: sandpaper.
[13:51:08] <Cromaglious_> just ordered some 6.35mm x 8mm flex couplings
[13:53:25] <pink_vampire> https://www.youtube.com/watch?v=0tJ2aDzsnlA
[14:05:41] <Erant> Cromaglious_: Whatcha need the couplings for?
[14:06:26] <Cromaglious_> so I can hook a 1/4" shaft stepper to the 8mm(5/16") lead screw
[14:06:52] <Erant> (of what)
[14:07:38] <Cromaglious_> my 3040 engraver
[14:09:10] <Erant> Got it. I thought you already had that up and running?
[14:09:11] <Nick-Shop> where can I upload a pic that doesn't want my email address
[14:09:20] <malcom2073_> imgur
[14:09:46] <witnit> pink_vampire: thats super nice way for turning, but it only works for short parts
[14:09:47] <Nick-Shop> thanks
[14:10:01] <Erant> I block imgur these days. Waste of time, plus they're serving up hostile ads.
[14:10:09] <Cromaglious_> Erant, the Y axis is really gutless and drops steps at any 1/2 chance...
[14:10:32] <pink_vampire> I know It's col. this is why I post it here
[14:10:42] <pink_vampire> cool*
[14:10:46] <witnit> :)
[14:12:20] <Erant> Cromaglious_: Huh. Is it the stepper, or the controller?
[14:13:45] <Erant> pink_vampire: I thought about trying that.
[14:13:50] <Erant> And then I just bought a lathe.
[14:14:18] <Erant> I'd probably do that if I needed something CNCed though.
[14:15:06] <Erant> Cromaglious_: Also, it probably doesn't matter much to you, but those couplings are... not great.
[14:15:23] <pink_vampire> I had a lathe (chinesium stuff) then I return it and got the cuuuuute G0704
[14:17:13] <Cromaglious_> stepper.. 3040 is pretty light so those couplings are OK
[14:17:19] <Erant> I got an Atlas 618. People hate on it, but whatever.
[14:17:34] <Erant> Beats a Chinese one, and they're still very affordable.
[14:18:34] <Erant> Cromaglious_: Can't you just bore out a coupling to 5/16"?
[14:19:06] <Cromaglious_> wrong direction... going from 5/16 to 1/4 shaft on the stepper
[14:19:46] <Erant> ah
[14:19:57] <Erant> (no lathe?)
[14:20:23] <Erant> Or, euh, aluminum foil? ;P
[14:24:48] <pink_vampire> I'm lost
[14:24:58] <pink_vampire> what is the topic?
[14:28:18] <pink_vampire> http://imgur.com/AQecyv4
[14:29:14] <Deejay> haha
[14:30:45] <pink_vampire> http://imgur.com/d8U3i
[14:30:48] <pink_vampire> more
[14:34:53] <witnit> bwahaha those drill bits
[14:35:15] <witnit> I guess thats one way to make a left handed drill
[14:37:06] <SpeedEvil> wow
[14:38:33] <witnit> I had picked up a big box of those drills, it was like all the number and letter sizes from .030 to 1/2 massive display of them, I just dumped them all in a scrap bin and put my good drills in the box
[14:38:48] <Nick-Shop> take it back to harbor freight lol
[14:39:27] <witnit> I got the whole thing for like $2 at a garage sale, I just wanted the container I had just assumed the drill were trash
[14:39:58] <witnit> I never bought anything from harbor freight, do they even carry things worth buying?
[14:43:32] <renesis> yes
[14:43:51] <renesis> you dont buy shit that you absolutely depend on from there
[14:44:06] <renesis> or heavy equipment that you will use daily
[14:44:40] <renesis> but for a lot of stuff, if youre just going to use it once or dont need it to last, HF is fine
[14:45:00] <renesis> like, you dont buy calipers for part inspection at HF
[14:45:12] <renesis> you buy calipers for an engineering lab at HF
[14:45:32] <renesis> because they get used a ton and dropped and lost and stolen
[14:45:58] <renesis> so you usually want at least a few around at a time, and you want replacement to be affordable
[14:45:59] <witnit> I just assumed if you wanted drill bits like what pink posted, thats where you go to find em
[14:47:26] <renesis> right like i bought a titanium nitride set with like 200 bits or something, theyre not super sharp but they work and can replace one at a time if needed
[14:47:32] <witnit> a guy brought in some carbide tipped boring bars from there once(i think it was hf), he used one of them and tossed them all in the trash after he realized they were no good, I just assumed all their stuff was bad
[14:48:16] <renesis> yeah a lot of their stuff is cheap
[14:48:49] <renesis> i think quite a bit of their stock is QA rejects of Home Depot and Lowes brands
[14:48:54] <renesis> like, same factories
[14:49:09] <renesis> some of the hand tools are identical but clearly of lower quality
[14:49:16] <witnit> ahh that makes sense, because most of lowes and HD are crap too
[14:49:27] <renesis> right but theyre decent cheap tools
[14:51:48] <renesis> like, i think an HF compressor will work fine if you use it few times a month at most
[14:52:07] <renesis> if you try and use that shit daily it prob crap out after few months
[14:54:36] <witnit> I remember using my friends wrenches one time, I dunno what they were, im turning the wrench and the open end spreads apart, so I flip it around the closed end of the wrench CRACKS it just broke and he says to me, well it has a lifetime warranty..... WTF so if I turn this turd into the company they will give me back another turd?
[14:54:43] <Nick-Shop> Having a problem with a new axis lathe install http://imgur.com/a/ojRIQ shot of screen. What's that no file at the top and the greyed out Tool Touch Off box. The really thing wrong is there's no tool table that the lathe needs in the drop down box.with the 9 G54 group
[15:02:42] <witnit> Nick-Shop: I wonder why your AXIS isnt loading /usr/share/axis/images/axis-lathe.ngc
[15:02:42] <witnit> by default as it should. maybe you could figure that out and the rest will work as you expect?
[15:07:50] <Nick-Shop> Don't have a clue started with sim axis lathe and modified it from there
[15:22:54] <Nick-Shop> axis-lathe.ngc is a default lathe program that comes up at startup - i took it out with open file = " " so someone doesn't start it by mistake.
[15:24:30] <CaptHindsight> what the best internal material for a ~1 cu ft (30cm x 30cm x30cm) oven to hold temp <1 deg C?
[15:24:59] <Erant> I have a box of HF drills with all the numbers, and then I have the sizes I use a bunch (mostly tap sizes) in stub cobalt.
[15:25:28] <CaptHindsight> max temp ~200C (400F)
[15:25:38] <Erant> Which means I use the HF ones when I need an odd-ball size once. I've come across several drills in the set that are just plain not-straight fresh out of the box though.
[16:07:28] <witnit> I was using a chinesium drill once, and it did that exact same thing where the flutes twisted into a left handed spiral. the kicker is that I was drilling WOOD!
[16:08:57] <CaptHindsight> that sounds like a reversable bit
[16:12:10] <witnit> granted it was oak, but seriously....what kind of company would actually attempt to sell a product meant for drilling metal knowing it is not even close to being capable of this. In my opinion that is false advertising and illegal marketing strategy. then again dishonest business practice is not in my nature so advertising it as a metal cutting tool when it cant even cut wood I feel is wrong.
[16:12:43] <Erant> witnit: Curious how it twists like that. I'd expect it to just snap
[16:12:51] <witnit> they dont harden the metal
[16:13:01] <witnit> its like soft wire
[16:13:02] <Erant> But I guess it's not hardened all the way up? Just the... tip.
[16:13:44] <witnit> not hard anywhere from what I can tell, they might as well be made of aluminum
[16:17:44] <witnit> pink_vampire: were those your drill bits or did you find those pictures online?
[16:17:50] <Erant> I've drilled some steel with them, but that was in the mill so at least they have the advantage of going in straight with constant pressure.
[16:18:15] <Erant> The, euh, 'fancy' coating came off rather quickly though ;)
[16:19:20] <os1r1s> Anyone have advice on tapping cast with a small(ish) size like M3
[16:24:07] <CaptHindsight> os1r1s: don't use a HF tap
[16:24:36] <os1r1s> CaptHindsight I have some decent taps. I was going to use a tapered and come back with a bottoming tap.
[16:24:57] <CaptHindsight> it's easier than aluminum
[16:25:13] <os1r1s> CaptHindsight I figured it would have a tough time holding the threads.
[16:25:22] <os1r1s> CaptHindsight I've done 12L14 and 6061 with no problem.
[16:25:29] <os1r1s> CaptHindsight Tap fluid or dry?
[16:25:47] <CaptHindsight> I use fluid in aluminum
[16:26:27] <CaptHindsight> it tends to work better, cleans easier, less chance it breaks, just don't be greedy
[16:26:51] <os1r1s> I always use tapmagic in alum. I had read online tap fluid should be avoided in cast
[16:27:14] <Erant> Cast has its own lubrication.
[16:29:01] <CaptHindsight> fluid tends to get filled with micro iron chips
[16:29:39] <os1r1s> Ahh, ok
[16:30:47] <Deejay> gn8
[16:32:05] <Erant> Man, this ballscrew stuff is weird. It looks like Gten doesn't have a supplier in the US.
[16:32:32] <Erant> So because of some weird goings on... Right now zappautomation in the UK(!) is the cheapest option.
[16:32:52] <Erant> Despite me being in California, and friggin close to China.
[16:40:45] <Cromaglious_> Erant, I'm in Temecula Southwest Riverside county... Where you abouts?
[16:52:36] <witnit> I was watching some youtube video of a guy saying that coating on drill doesnt actually do anything and it is a gimmic because people think they are better and call them "gold drills"
[16:52:38] <witnit> lel
[16:53:28] <roycroft> teh youtube guy probably uses harbor freight titanium coated drills
[16:53:35] <witnit> ^
[16:53:42] <witnit> exactlu
[16:53:45] <witnit> exactly
[16:53:51] <Erant> Cromaglious_: San Francisco.
[16:54:17] <Erant> witnit: For the HF coating, I'm going to agree with him ;)
[16:54:42] <roycroft> the titanium coating on the hf drills is probably fine
[16:54:54] <roycroft> the problem is that if you coat pot metal drills with titanium they're still pot metal drils
[16:54:54] <witnit> yeay well. you cant polish a turd
[16:54:56] <roycroft> drills
[16:55:29] <witnit> yep but I think he was trying to imply that the coating on any drill is a gimmic
[16:55:38] <witnit> I think he just doesnt know anything about drilling holes
[16:55:52] <Erant> Right. Though I've always wondered how much it helps when you're hand-drilling.
[16:59:09] <witnit> I know with certainty there are advantages with coated drills but I think its more about the materials being cut and keeping the drills temperature on the edges proper.
[17:00:28] <Erant> witnit: Where I think the main advantages are with machine drilling. (As in, drill press, mill, etc.)
[17:00:36] <roycroft> correct feeds and speeds, and ensuring proper chip clearance are the important factors
[17:00:56] <roycroft> drill geometry is also important, of course
[17:02:46] <roycroft> most folks don't regrind their drills for different materials, but that can make a big difference
[17:03:15] <witnit> most folks cant grind a drill
[17:03:26] <roycroft> reducing the point angle down to as little as 90 degrees helps when drilling non-ferrous metals and cast iron
[17:03:30] <witnit> they use it till the corners burn off then buy more
[17:03:37] <roycroft> 60-90 degrees is ideal for plastics
[17:04:08] <witnit> with coated drills your chip evacuation can be better but it depends on the type of coating
[17:04:23] <roycroft> when i took machining classes we spent a lot of time learning how to hand grind drill bits before we were allowed to work on our first project, which was done almost entirely on a sensitive drill press
[17:04:34] <roycroft> i had an old school instructor :)
[17:05:00] <roycroft> which is great
[17:05:50] <roycroft> because i'm trained now to the point that almost any time i need to drill something, and certainly any time i need to drill a large hole, i grab the drill bit, inspect the tip with a loupe, and touch it up on the grinder first if necessary
[17:05:55] <roycroft> it's a habit
[17:06:25] <Roguish> roycroft: i was given a new drill, and had to hand back the same one would produce 2 nice, even, identical spiral chips
[17:06:42] <Roguish> some in the class had to get a 2nd drill.....
[17:06:50] <witnit> yep I would prefer older instructors over new, they usually have mechanical awareness which newer guys seem to only know how to purchase things and punch in codes
[17:07:17] <roycroft> folks were not allowed to take the cnc classes until after they had completed 2 years of full-time machining classes
[17:07:22] <witnit> I had drills from guhring which I had to retouch uneven flutes
[17:08:29] <witnit> yesterday I was making spot drills from parabolic drills with a huge webbing in them. having to thin out a webbing which is normally meant to be ground into a split point is a pain in the ass
[17:08:59] <roycroft> speaking of drilling though
[17:09:17] * roycroft is finished with lunch, and needs to head back out to the shop to work on his new drill press table
[17:09:38] <witnit> ohh I thought you were going to make "lewd comments"
[17:10:21] <witnit> take care I need to get to the shop as well, I have a lathe to "fix"
[17:11:20] <roycroft> sorry, my name is not donald trump
[17:11:25] <roycroft> i'm not prone to lewdness
[17:13:02] <witnit> heh, I thought it was comical the news in making such a deal about his "lewdness" sounds like any other group of guys talking to me. Its not like hes hitting people over head with bibles or anything :P
[18:33:43] <Cromaglious_> 92.3F on the back porch in the shade
[18:34:49] <jdh> rain. lots of rain.
[19:51:52] <Erant> Hmm. I misremembered the clearance between my saddle and X slide. Time to go find someone that'll machine that for me.
[19:52:30] <Erant> Just need to take like an 1/8th off, so we'll see if I can find someone I can just slip a 20.
[20:03:40] <jdh> file? chisel? angle grinder?
[20:28:50] <MacGalempsy> finally done for the day...
[20:29:12] <MacGalempsy> tomorrow the forms should be finished
[20:29:48] <BeachBumPete> forms for what?
[20:30:18] <MacGalempsy> hey pete. glad to see you made it. for the furnace.
[20:30:29] <MacGalempsy> https://flic.kr/p/M3m1dg
[20:30:35] <BeachBumPete> yeah we made it just fine but we were without power for several days
[20:30:56] <MacGalempsy> flip thru there a little.
[20:31:29] <BeachBumPete> I was hoping to be moving my machines this weekend instead I was making shutters and hunkering down while 85 MPH winds buffeted my house :(
[20:31:40] <MacGalempsy> the lid looks great. if the rest comes out as good, i will be happy.
[20:32:07] <MacGalempsy> are the machines still dry?
[20:32:29] <BeachBumPete> looks good man
[20:32:39] <BeachBumPete> machines are still in the storage unit safe and sound
[20:32:51] <MacGalempsy> thank you.
[20:33:42] <MacGalempsy> cool. my buddys father in law was buying machinery to sell to china and their warehouse was flooded during katrina
[20:34:05] <MacGalempsy> everyrhing went to scrap
[20:36:23] <BeachBumPete> yeah we are fine and the machines are fine
[20:37:08] <Tom_itx> Tn is dry
[20:37:27] <BeachBumPete> I have a friend that is loaning me a trailer for the lathe
[20:37:31] <BeachBumPete> Tom_itx so?
[20:38:02] <Tom_itx> just sayin
[20:38:06] <BeachBumPete> we actually had surprisingly little rain considering the scope of the storm
[20:38:24] <Tom_itx> yeah inlaws sat it out in Ga as well
[20:38:27] <BeachBumPete> there was no flooding in my area whatsoever
[20:39:45] <Tom_itx> did you get your electric pannel worked out?
[20:39:55] <BeachBumPete> started to
[20:40:03] <BeachBumPete> then I had a HURRICANE
[20:40:35] <BeachBumPete> I am going to bring the machines over and get them positioned and whatnot I guess next weekend now
[20:41:17] <jdh> we have had 23" of rain since sunday
[20:41:24] <BeachBumPete> WOW
[20:41:31] <BeachBumPete> is there flooding?
[20:42:26] <jdh> yep. the river downtown is tidal, lots of flooding there.
[20:42:35] <jdh> creeks, etc overflowing
[20:42:50] <BeachBumPete> jeez I know up north of us there was some flooding near jacksonville etc.
[20:43:41] <BeachBumPete> even during the height of the storm when it was cat4 just offshore like 50 miles there was not very much rain and when it came it was in like high wind blowing sheets
[20:43:42] <jdh> lots more flooding inland
[20:57:41] <Erant> jdh: Eh. I'd rather go find someone to machine the thing ;)
[21:00:00] <Erant> Or... Hmmm, I guess I could try it on the lathe.
[21:00:18] <jdh> I bought an x2 to mill the saddle on my g0704, then sold it
[21:00:54] <Erant> Haha
[21:01:06] <jdh> craigslist buy/sell. made $150 or so on it
[21:02:23] <Erant> Alternatively I could go for some really small ballscrews, but that'd put me in the 8mm range.
[21:02:26] <Erant> Which...
[21:02:48] <Erant> In theory would work. In practice makes me uneasy.
[21:25:39] <os1r1s> jdh You put endstops on your g0704?
[21:26:17] <jdh> heh... I just recently heard that term. seems to be a reprapper thing.
[21:26:25] <os1r1s> :)
[21:26:55] <os1r1s> jdh I have a pm25mv that I am fashioning endstops for
[21:27:03] <os1r1s> So always curious
[21:27:15] <jdh> you should put limit switches on instead
[21:27:33] <jdh> I put on on X, never got around to the others
[21:27:40] <os1r1s> jdh That is what I'm putting on
[21:27:47] <os1r1s> Why only X?
[21:28:13] <jdh> because the X one was trivial and they don't really add a lot for me.
[21:28:58] <jdh> Z would be simple also, just never got around to it.
[21:28:58] <os1r1s> And you are using roller arm switches?
[21:29:15] <jdh> prox on X
[21:29:27] <os1r1s> How would you picture doing Z?
[21:29:58] <jdh> prox on the column, flag on the head
[21:30:12] <os1r1s> Just z-max?
[21:31:08] <jdh> yeah, other doesn't mean much
[21:31:33] <os1r1s> Debated on opticals like hoss
[21:31:47] <os1r1s> But that is a lot of work ....
[21:31:50] <jdh> that woudl be cool
[21:32:07] <jdh> I have a shield over my prox for chips
[21:32:47] <os1r1s> jdh That is my worry with roller switches
[21:33:11] <jdh> yeah. you would need a cover
[21:33:18] <jdh> or mount the prox on the axis
[21:38:07] <os1r1s> jdh Got a pic of yours?
[21:39:00] <jdh> don't think so. It is just a prox mounted on an angle bracket. uses the existing round flag thingies to trip the prox
[21:40:30] <jdh> https://goo.gl/photos/by7A8M8Ln18Hn6Hd7
[21:41:38] <os1r1s> jdh Simple and easy. Nice
[21:42:07] <os1r1s> I have mine (on X) mounted where the round stops are
[21:42:32] <jdh> would be better that way if you wire them as min/max
[23:11:47] <Erant> Weird. Zapp is coming out to be $70 for a ballscrew set. China can't seem to beat it O_o