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[00:34:08] <CaptHindsight> http://www.usedmachineryauctions.com/cgi-bin/mnlist.cgi?usedmachinery30/10 NMTB 50 Taper in Spindle, Travels Approx 91.65" x 46" x 30", 3,000 RPM
[00:34:32] <CaptHindsight> http://www.youtube.com/watch?v=e21k39vN8-0
[00:34:33] <Tecan> (e21k39vN8-0) "Kearney & Trecker Data Mill 700" by "cnctool" is "Tech" - Length: 0:01:12
[00:39:57] <Chemeleon> thats impressive looking
[00:44:39] <toastyde1th> 50 taper is heavy
[00:44:48] <toastyde1th> I hated putting 50 taper facemills in vertical mills
[00:44:51] <toastyde1th> horizontal it's not so bad
[01:07:01] <aksr> i got one of these
http://www.ebay.com/itm/NEW-BORING-HEAD-WITH-R8-SHANK/151090438658?_trksid=p2047675.m2109&_trkparms=aid%3D555003%26algo%3DPW.CAT%26ao%3D1%26asc%3D142%26meid%3D1065229531749847646%26pid%3D100010%26prg%3D1076%26rk%3D3%26rkt%3D15%26sd%3D321186594142%26 with my lathe, but no boring tools
[01:07:18] <aksr> what for can i use it?
[01:07:50] <kengu> no idea.
[01:21:58] <aksr> kengu: i have _regular_ boring tools, but not this tool specific
[01:53:43] <archivist> I have one that is removable from its shank, I have used it for a couple of jobs (bearing shell )
[01:56:06] <archivist> they are used mainly where you do not have cnc
[01:58:35] <DJ9DJ> moinsen
[02:03:20] <aksr> hi archivist
[02:03:28] <aksr> i don't have cnc
[02:03:47] <aksr> just a "regular" lathe :P
[02:04:06] <archivist> you can mill in a lathe
[02:04:22] <aksr> where can i find standard for cutting threads?
[02:04:45] <aksr> archivist: as i understand, yes, but limited milling?
[02:05:42] <archivist> google will find you many pages with thread standards
[02:05:59] <archivist> depends what thread you want
[02:06:12] <aksr> is there a unified standard?
[02:06:24] <NickParker> several
[02:06:27] <aksr> standard is no standard if there's so many of them :D
[02:07:13] <aksr> e.g. >1 :P
[02:07:28] <archivist> many standards from many standards organisations, something one has to get used to
[02:07:41] <aksr> that's lame :)
[02:07:56] <archivist> and if doing repair work you need old information too
[02:08:57] <archivist> http://xkcd.com/927/
[02:11:40] <false> archivist: best site ever
[02:12:00] <archivist> usually has a good answer
[02:12:12] <false> yup
[02:16:25] <archivist> for really obscure threads just ask
http://www.collection.archivist.info/archive/DJC/BK/BK2267/
[02:17:32] <Valen00> so feature request from the machinist, when doing a touch off in axis, the cordinate system that is touched off is wherever you left it, regardless of any g54 commands. He suggests that the default be the current cordinate system
[02:17:52] <archivist> stuff like SAE threads for wheel studs and nuts never go mainstream
[02:22:09] <aksr> :D
[02:36:19] <Valen00> archivist, what do you think, worth a feature request?
[02:37:22] <archivist> dunno, touch off is a touchy subject for me
[02:37:27] <ssi> punny
[02:37:56] <archivist> no one thinks about odd tooling like I use
[02:39:18] <archivist> like
http://www.archivist.info/cnc/cnccam.html one needs the centre line
[02:39:45] <archivist> and od (including any runout)
[02:53:07] <archivist> while thinking of touch off of tooling,
http://www.archivist.info/cnc/stage6/p1010245.jpg include the tip radius
[03:10:52] <aksr> archivist: what's the name of this book?
http://www.collection.archivist.info/archive/DJC/BK/
[03:11:29] <aksr> i suppose it's a single one :P
[03:11:35] <archivist> which book you are pointing at the root directory
[03:12:20] <aksr> for example, bk662?
[03:12:33] <archivist> take the subdirectory name and enter into the search
http://www.collection.archivist.info/
[03:13:37] <aksr> ah, ty
[03:39:24] <aksr> where to find a current standard for thread for hexagon head screws?
[03:40:12] <archivist> imperial, metric, whitworth BSF
[03:41:20] <archivist> and there were changes in head sizes on whitworth bolts way back in the 1930's
[03:49:47] <aksr> archivist: link?
[03:51:10] <archivist> a bit busy to google too
[03:54:44] <aksr> sure, np
[03:55:57] <archivist> better books like machineries handbook would have head sizes
[04:07:18] <aksr> archivist: what about?
http://www.gewinde-normen.de/en/index.html
[04:10:42] <archivist> some important missing and no head sizes
[04:11:36] <archivist> yet does have some rare threads
[04:12:50] <archivist> ah found the one I was looking for
[04:13:35] <archivist> silly to have imperial threads stated in metric dimensions
[04:18:47] <aksr> could it be used as a reference?
[04:19:20] <archivist> probably
[04:20:12] <archivist> all depends how accurate and what you are doing, there are no tolerances either on that site
[04:21:03] <aksr> :(
[05:05:56] <aksr> what's harder to learn, turning or milling?
[05:08:08] <archivist> I think is helps to see someone else up close or them see you to make helpful comments when a noob
[05:08:57] <aksr> yeah, but, what's your opinion?
[05:08:59] <archivist> is/it
[05:09:28] <archivist> I started out on a lathe with no teaching at all, and made mistakes
[05:10:57] <aksr> i only have (atm) lathe, that's why i'm asking ;)
[05:11:27] <archivist> iirc I made fewer mistakes on the mill but also mainly self taught, did my knowledge of materials learned from the lathe help on the mill ...probably
[05:13:20] <archivist> what few get taught these days is hand turning, that will show you the effects of tool height and sharpness
[05:13:36] <aksr> understandable..
[05:16:40] <archivist> http://www.haythornthwaite.com/Hand%20Rest.htm
[05:17:27] <archivist> it is a method common with clock and watch makers
[05:20:07] <aksr> hm
[05:20:17] <archivist> also something I have no pictures of me doing it because I am staring at the operation and holding the tool, feeling , listening and seeing the cut
[05:21:18] <archivist> that listening part is important because the noise indicates the finish you get
[05:21:53] <archivist> same on any lathe not just hand turning
[05:29:42] <archivist> some metals you will find very hard to get a good finish, often metals that work harden and the tool is tearing chips out rather than cutting, use the right tool geometry and cut deep enough
[05:30:33] <aksr> at that case, should i increase the speed also?
[05:31:45] <archivist> see cutting feeds and speeds sections of books and websites
[05:32:22] <archivist> depends on material and stiffness of machine
[05:34:31] <aksr> with hand turning it's more similar to a wood lathe ..
[05:34:39] <aksr> *with a
[05:38:33] <aksr> this is nice:
http://www.haythornthwaite.com/Tool%20Grinder.htm
[05:43:10] <archivist> rather better than mine
[05:44:11] <archivist> you do need a lot of adjustments and angles
http://www.collection.archivist.info/archive/DJCPD/PD/2012/2012_11_01_Tool_grinder/IMG_1387.JPG
[05:46:10] <aksr> :)
[05:50:12] * MattyMatt has angle grinder and pink dremel wheels
[05:51:14] <MattyMatt> surprisingly, I've never made a satisfactory lathe tool with them
[05:57:31] <MattyMatt> I guess a cnc toolgrinder would need substantial motors if you can't lock anything down
[05:58:21] <archivist> you need a good spindle, rigid machine and dressed wheels
[05:59:24] <archivist> dremel has crap spindle, needs a lot of care to get anything right
[05:59:39] <MattyMatt> I'd have though wheels would tend to dress themselves, but that doesn't seem to happen
[06:00:58] <archivist> the dressing also sets the finish you get
[06:01:45] <MattyMatt> dremel on my heavy mill table is the best grinder setup so far. all I've done is sharpen chisels. not vg finish
[06:02:28] <MattyMatt> it gets me close enough to finish with the whetstone tho
[06:06:09] <MattyMatt> I think it was you who advised me when I first got the lathe to forget toolgrinding and go straight to carbide inserts. Not gone there yet myself
[06:06:42] <MattyMatt> I thought it was worth playing with hss first, just to learn
[06:08:03] <MattyMatt> and to honour my grandad, who was a toolmaker :)
[06:08:35] <MattyMatt> I bet he never used carbide inserts
[06:08:49] <MattyMatt> retired about 75 iirc
[06:09:28] <MattyMatt> 73, born 1903 retired at 70yo
[06:10:56] <archivist> back in the day the carbon steel tools did not last long and there was a job for people to just grind lathe tools all day
[06:11:51] <MattyMatt> yep, although I think he was higher up the food chain than that
[06:12:44] <MattyMatt> I wish he'd taught momma, so the knowledge coulda passed down. she was only child
[06:12:52] <MattyMatt> classic example, as they say
[07:04:47] <Loetmichel> hrm... had to make some swiss cheese out of 1,5mm shet aluminium again...
http://www.cyrom.org/palbum/main.php?g2_itemId=14457
[07:05:24] <Loetmichel> ... i should buy some TC drill bits in 2,5mm... the milling of ~350 holes 2,5mm with a 2mm mill bit is a bit time consuming ;-)
[10:39:11] <Gigs-> Semi-off-topic, when I open files a made in librecad in draftsite, my dimensions layer is missing all the dimensions, anyone familiar with this?
[10:41:48] <jdh> nope. Does your dim layer get turned off maybe?
[10:42:27] <Gigs-> no. I found a thread on it, it looks like it might be a draftsite problem
[10:43:19] <Gigs-> I guess that's OK then as long as autocad gets it right
[10:45:58] <jdh> it takes 5+ minutes to start autocad on this box. 10-15 seconds for draftsight
[12:13:32] <IchGuckLive> hi all B)
[12:15:26] <skunkworks> http://www.radioshack.com/product/index.jsp?productId=23160006&camp=EMQQ09092013MB1&utm_campaign=3DPrinter&utm_medium=email&utm_source=09092013
[12:15:53] <IchGuckLive> thats the new item to be must have nominated
[12:20:03] <Chemeleon> http://www.chemeleon.net/diycamCNC_wip3.jpg do ya'll think having the leadscrew on the back of the gantry carriage like this would make it prone to skewing? current design has the gantry riding on v-groove bearings, 5" width between bearings, about 8" in height apart
[12:21:33] <IchGuckLive> Chemeleon: loos good
[12:21:48] <IchGuckLive> but wood routers normaly dot drive the X table
[12:22:06] <IchGuckLive> Y Z is moving on top of the fixed part
[12:22:35] <Chemeleon> yea, I decided to go moving table with this design for stiffness, and because by the time a moving gantry has the bearings spaced wide enough apart for stability, the footprint on a small machine like this wouldnt be all that much smaller really
[12:22:56] <IchGuckLive> up to you
[12:23:13] <IchGuckLive> i hope you dont have to pay for the stiffness parts
[12:23:26] <IchGuckLive> on pay change the hole thing
[12:23:39] <Chemeleon> I've been running cost estimates from time to time, so far its been staying just under the $1000 target I'd set
[12:23:43] <IchGuckLive> you need only speed on the spindle
[12:24:39] <IchGuckLive> you simply do not need that stiffness
[12:24:42] <IchGuckLive> for wood
[12:25:02] <Chemeleon> probably not, no, but if the cost increase for it is minimal, doesnt hurt to have it :)
[12:25:43] <IchGuckLive> the pricise on wood milling is only 0.2mm needed 0.008Inch
[12:26:00] <IchGuckLive> up to you
[12:26:18] <CaptHindsight> skunkworks: it's a rebranded UP!
http://www.pp3dp.com/index.php?page=shop.browse&category_id=1&option=com_virtuemart&Itemid=91&vmcchk=1&Itemid=91
[12:26:20] <IchGuckLive> hope you got a mashine to produce this
[12:26:54] <Chemeleon> so far, theres no special tools needed for it, a chop saw and drill press would take care of everything
[12:27:12] <Chemeleon> most pieces can be ordered cut to length from various supplies, so its largely just a matter of bolting it all together :)
[12:27:19] <IchGuckLive> O.O
[12:27:23] <IchGuckLive> bad thinking
[12:27:45] <Chemeleon> whys that?
[12:28:05] <CaptHindsight> Chemeleon: remember that they only cut accurate to ~1/16 - 1/32"
[12:28:13] <Chemeleon> ah, true
[12:28:20] <Chemeleon> for my own, I'll be cutting it myself anyway
[12:30:43] <CaptHindsight> boting through t-slot into tapped hollows is also stiffer than using the plates on the outside
[12:30:44] <CaptHindsight> bolting/boting
[12:31:39] <Chemeleon> huh, I would have thought the other way around
[12:31:46] <Chemeleon> but if so, that saves me a few bucks in plate :)
[12:31:51] <Chemeleon> and neatens the look up too
[12:32:28] <Chemeleon> I guess easiest way to line up holes for that, would be to cut a 1/2" or so piece of 8020 the same size, clamp in place, then just that as a drill guide?
[12:33:00] <CaptHindsight> order them pre-drilled
[12:33:48] <CaptHindsight> they also sell a drill guide with a clamp that slides into the slot
[12:34:22] <Chemeleon> will have to check and see what they charge for that, I suspect I'm cheap enough I'll want to do it myself :)
[12:34:36] <CaptHindsight> http://www.amazon.com/80-20-Inc-Series-Access/dp/B006YVZ0JK or similar
[12:35:16] <CaptHindsight> I'm just bringing up these factors for the DIYers
[12:35:45] <Chemeleon> yea, its appreciated :)
[12:35:46] <CaptHindsight> you might even have a mill at your disposal, your target demographic does not
[12:36:01] <Chemeleon> no mill yet, came to the reluctant conclusion that metalworking will have to wait for the next shop :(
[12:36:19] <Chemeleon> which was a real shame, because there was a *really* neat one at the auction I got the drill press at that went cheap
[12:36:42] <Chemeleon> massive old machine, makes bridgeports look miniscule, with a huge ton of tooling, sold for about $600
[12:37:13] <Tom_itx> and probably 3x that to move it
[12:37:19] <Chemeleon> heh, quite likely, yea :)
[12:37:35] <Chemeleon> the drill press was the absolute limit of what I can move on my own, no way I could have shifted that mill myself
[12:38:15] <Loetmichel> Chemeleon: forklift-> into onto the pickup, drive, forklift-> into the workshop...
[12:38:20] <Loetmichel> whre is the problem?
[12:38:32] <Chemeleon> no forklift :P
[12:38:51] <Chemeleon> next shop is definitely being built around the idea of a forklift, just have to save up a fair bit to do so
[12:39:04] <Chemeleon> www.chemeleon.net/drillPress_wip10.jpg
[12:39:35] <Chemeleon> was able to break that down into 6 big chunks, and move them around with shop crane and pallet jack, with a chain hoist to lift things up/down into place from above
[12:39:43] <Chemeleon> roughly 3200 pounds total
[12:39:54] <CaptHindsight> Chemeleon:
http://www.boschrexroth-us.com/country_units/america/united_states/sub_websites/brus_dcl/Products/Aluminum_Structural_Framing/a_catalog/mge_catalog_download/index.jsp
[12:40:33] <Chemeleon> any particular advantage to that over 8020? I tried looking up prices awhile back, and it seemed to be about the same
[12:40:36] <CaptHindsight> you might want to read through the catalogs by Bosch, they have better engineering info than 8020
[12:40:49] <Chemeleon> will do, thanks
[12:41:17] <Loetmichel> CaptHindsight: you know that extrided aluminium beams tend to be as bent as a banana?
[12:41:30] <Loetmichel> and no good for a PRECISE cnc mill?
[12:41:39] <Loetmichel> extruded
[12:41:40] <CaptHindsight> Loetmichel: it's not my project :)
[12:41:55] <Loetmichel> whose is it?
[12:42:35] <Chemeleon> mine
[12:42:38] <IchGuckLive> Loetmichel: schweres gewitter hier es schüttet
[12:42:47] <Chemeleon> and they're more than accurate for this use, as its primarily wood
[12:42:54] <Chemeleon> err, primarily for cutting wood rather
[12:42:58] <Loetmichel> IchGuckLive: dito here, its rainig the proverbial cats and dogs ;-)
[12:43:34] <Loetmichel> Chemeleon: a fair few ppl make CNC gantry mills out of aluminium beams
[12:44:40] <Loetmichel> but if you want to make them preceise: double your thoughts of "big enough" in width and height, add a 50% safety margin and use beams that have been ground/milled/bent to be exactly square and straight
[12:46:01] <CaptHindsight> he'll probably learn a lot from building it
[12:46:10] <Chemeleon> oh, I'm well beyond double of what is probably "good enough" for dimensions I imagine :)
[12:46:29] <Chemeleon> this one is a moving table design, cut area of 12"x12", and its framed o ut with 3"x3" and 6"x3" 8020
[12:46:35] <CaptHindsight> then he'll see where his assumptions were wrong and where they were good enough
[12:46:43] <Chemeleon> yup
[12:47:08] <Loetmichel> CaptHindsight: i second that
[12:47:21] <Chemeleon> I've already built one router, gone through the cycle of tweaking and debugging things to improve it, so hopefully I've gone through the major gotchas already :)
[12:47:27] <Loetmichel> i am in production of my eight and nineth gantry
[12:47:44] <Loetmichel> and STILL have things to correct from the last ones ;-)
[12:47:46] <Chemeleon> goal for this one is a very fast machine I can keep on my desk
[12:47:50] <Chemeleon> heh, no doubt
[12:48:17] <Chemeleon> this one I'm also designing from scratch myself, rather than basing it off someone else's design like my first was
[12:48:26] <Chemeleon> and like you said, if in doubt, I go significantly beefier than I think it might need :)
[12:48:35] <Loetmichel> Chemeleon: hate to burst your bubble, but one buildt is not enough ;-)
[12:48:51] <Chemeleon> heh, there was no bubble there to burst ;)
[12:48:52] <Loetmichel> you will still find goofs even after the tenth one
[12:49:43] <Loetmichel> Chemeleon: the "beefier" thinking lead to a "a bit heavy" cow bar on the truck of a friend...
[12:49:51] <Chemeleon> assuming this turns out how I want it to, once its tested I plan to put up thorough documentation/plans for it on my site
[12:49:57] <Loetmichel> main beams are 120mm steel tube with 40mm wall ;-)
[12:50:04] <Chemeleon> but if not, I'm only out a grand or so, and still have something at least functional for on my desk
[12:50:16] <IchGuckLive> Chemeleon: i woudt simply go a simpler way with LM20UU
[12:50:28] <Loetmichel> http://landscaper.de/db_0528.jpg
[12:50:31] <Loetmichel> http://landscaper.de/db_0638.jpg
[12:50:34] <IchGuckLive> and yust pins
[12:50:35] <Chemeleon> I've been bouncing all over the place on linear bearings, trying to decide what would be best without completely blowing my budget on them
[12:50:49] <Loetmichel> ... 450gk steel just for the cow bar ;-)
[12:50:55] <Chemeleon> sounds about right loet :)
[12:51:06] <Chemeleon> I definitely have a size/weight issue when it comes to my tools, as that drill press attests ;)
[12:51:26] <CaptHindsight> Loetmichel: is that your weekend getaway camper for Syria?
[12:51:27] <Tom_itx> Loetmichel, your every day commuter?
[12:51:27] <FinboySlick> Loetmichel: You upgraded your jetta?
[12:51:29] <jdh> I have size /weight issues also.
[12:51:44] <Loetmichel> CaptHindsight: not mine, but yeah, something like that
[12:51:51] <jdh> I'd be perfect if I was 1m taller.
[12:51:59] <IchGuckLive> Chemeleon: china is your friend
[12:52:01] <Chemeleon> I was originally thinking supported round rails, but they seem to get iffy reviews on strength/accuracy from a fair number of people, and the v-con setup from CRP seems better for about the same cost
[12:52:04] <Loetmichel> was in marc, algera and libya with this thing ;-)
[12:52:07] <Loetmichel> maroc
[12:52:33] <Chemeleon> I thought I'd found profiled rails from china at a great price, but when I reread things, realized the guy had quoted prices for individual units rather than the quantities needed, then wrote up a total from that :\
[12:52:50] <Loetmichel> algeria
[12:52:52] <IchGuckLive> 1m Balscrew 2005 is 180USD
[12:53:08] <Chemeleon> rather than the $270 he quoted, would have been more like $700
[12:53:11] <Loetmichel> FinboySlick: i never had a jetta
[12:53:21] <jdh> I got 1 20 and 2 16s machined, for $199 delivered.
[12:53:24] <Chemeleon> just using acme screws on this build, same ones I used on my bigger machine
[12:53:30] <Loetmichel> <. driving Opel OMega since he got the drivers license ;-)
[12:53:40] <Chemeleon> they work fine there, figured might as well stick with them :)
[12:53:54] <jdh> 2005/950 machined with bearing blocks for $150 shipped
[12:54:01] <FinboySlick> Loetmichel: Hmmm... Is it silver? I hardly remember the picture.
[12:54:06] <Loetmichel> it is
[12:54:12] <IchGuckLive> jdh: link
[12:54:38] <Loetmichel> the truck in the two pics is from a friend
[12:54:47] <CaptHindsight> Chemeleon:
http://www.automationtechnologiesinc.com/products-page/bearing-block-rail prices are about 1/2 these in China, but then you have to deal with the QC issues and shipping
[12:55:09] <FinboySlick> Loetmichel: Your friend is ready for the zombie apocalypse.
[12:55:35] <Loetmichel> who happend to earn his keep by driving "support" for up to 20 motorcycles on "desert vacation" twice a year
[12:55:47] <Chemeleon> round rails and the v-con setup are basically identical in price for this size
[12:55:57] <Chemeleon> would round be superior you think?
[12:56:09] <Chemeleon> all I've seen so far says otherwise
[12:56:24] <Loetmichel> Chemeleon: round and supported sould be enough
[12:56:42] <Loetmichel> but see to it that you get bearing blocks that can be adjusted
[12:57:47] <Loetmichel> because the cheap chinese router i have at the company has not and ist developing "play" because the aluminium blocks that house the "lm20uu" are widening...
[12:57:49] <IchGuckLive> Chemeleon: you have thinkked about the SBR20 rails simply spacks drilling
[12:58:01] <IchGuckLive> in standard wood frames
[12:58:07] <Loetmichel> IchGuckLive: the name is spax
[12:58:16] <Chemeleon> so given the cost is the same, whats the advantage of the round ones over v groove?
[12:58:17] <IchGuckLive> like house building in 4hr to the first part
[12:58:58] <Loetmichel> and no, spax isnt any good there without a steel wahser under it because of the centering evvect of a V head
[12:59:00] <IchGuckLive> Chemeleon: what is your wanted milling size
[12:59:01] <Loetmichel> effect
[12:59:11] <Chemeleon> 12x12 @ 300ipm with 1/8" bit
[12:59:22] <IchGuckLive> inch
[12:59:22] <Loetmichel> Chemeleon: never had v groove, cant tell
[12:59:34] <Chemeleon> right, sorry, inches
[12:59:49] <IchGuckLive> oh thats a cheep mill
[12:59:59] <IchGuckLive> let me quick calculate
[13:00:03] <Chemeleon> about 305x305mm with 3mm bit
[13:00:25] <Chemeleon> main thing is I want it to do 3d carving in wood *very* fast without sacrificing surface quality
[13:00:46] <Chemeleon> based on watching my current cnc work, that means it needs to be extremely stiff so it doesnt vibrate when rapidly changing direction
[13:01:19] <Tom_itx> what's your spindle rpm?
[13:01:24] <Loetmichel> Chemeleon: for wood something like this should be sufficient. I cant build that cheaper:
http://www.ebay.de/itm/3-AXIS-CNC6040Z-S65J-Upgrade-From-6040ROUTER-Engraving-Carving-Machine-800W-New-/171098071302?pt=LH_DefaultDomain_0&hash=item27d63d6106
[13:01:59] <Chemeleon> sufficient for sure, but how fast could it actually cut?
[13:02:07] <Chemeleon> I'm aiming for more than sufficient :)
[13:02:20] <Loetmichel> about 3600mm/min
[13:02:29] <Loetmichel> and its not THAT stiff
[13:02:53] <Chemeleon> not bad for the price, I'm aiming for more than double that though :)
[13:02:53] <Loetmichel> *calculating*...
[13:03:04] <Chemeleon> may be a pipe dream, but the bit can handle it, so seems a good goal
[13:03:11] <IchGuckLive> i calculate 850USD for the parts including electronics and spindle
[13:03:16] <Loetmichel> thats 141 ipm
[13:03:19] <Tom_itx> you'll need a servo system
[13:03:29] <Chemeleon> loet, yep
[13:03:49] <Chemeleon> 1/8" bit cutting 1/8" deep at 24k rpm can do about 320ipm optimally
[13:03:51] <IchGuckLive> with a 5i25 it can be around 10m/min
[13:04:03] <IchGuckLive> at 0.2mm pricis
[13:04:13] * Loetmichel ises a machine like that at the company (cheapskate-boss)...
[13:04:21] <Chemeleon> heh
[13:04:34] <Loetmichel> to make somethign like this:
http://www.cyrom.org/palbum/main.php?g2_itemId=14457
[13:05:04] <IchGuckLive> calculaded on xings store
[13:05:18] <Chemeleon> currently, I'm just shy of $1000 for materials for this design I've been working on
[13:05:19] <Loetmichel> or this:
http://www.cyrom.org/palbum/main.php?g2_itemId=14247
[13:05:30] <IchGuckLive> kck h will give you a better price he is right on the corner of the xing store
[13:05:40] <Loetmichel> or even this:
http://www.cyrom.org/palbum/main.php?g2_itemId=14184
[13:05:44] <Loetmichel> :-)
[13:06:17] <Loetmichel> at the moment i have gotten about 20 square meters of 1,5mm aluminium torough it
[13:06:21] <IchGuckLive> ok im off thunder getting to bad outside by
[13:06:26] <Loetmichel> in half a year
[13:07:02] <Chemeleon> nice
[13:07:18] <Loetmichel> just for the prototypes/ single digit series
[13:07:42] <Loetmichel> its a bit of a wait to drill all these holes wit a to small bit...
[13:08:30] <Loetmichel> http://www.youtube.com/watch?v=NxxhvO6wP08 <- thats the door of the nas :-)
[13:09:50] <Loetmichel> http://www.youtube.com/watch?v=hnjHd69saXs <- and thats some stepper mounts out of 4mm aluminium sheet
[13:11:02] <Loetmichel> so: yes, it CAN do aluminium, even steel
[13:11:12] <Loetmichel> but FAST ist something different
[13:11:21] <Chemeleon> yea
[13:11:22] <Loetmichel> because of the missing rigidity
[13:11:50] <Loetmichel> you have to go slow and with only 0,2mm in z per round
[13:12:30] <Loetmichel> or the milled parts will not fit
[13:12:30] <Chemeleon> assuming the machine's stiffness isnt a limiting factor, how fast can aluminum be cut?
[13:12:43] <Loetmichel> depends on the mill bit and the spindle
[13:13:27] <Loetmichel> with a 2mm mill bit like this and the 800W chinese HF motor (240kRPM) about 50ipm should be possible
[13:13:38] <Chemeleon> how deep of a pass would that be?
[13:13:40] <jdh> http://www.youtube.com/watch?v=8NatiYBitAI
[13:13:43] <Loetmichel> ... if you use some means of coolant
[13:13:55] <jdh> that moves pretty fast on aluminum
[13:14:10] <Loetmichel> the bits can dive about its diameter, maybe 1.5 times that
[13:14:14] <Loetmichel> before breaking
[13:14:31] <Loetmichel> in one pass
[13:14:41] <Chemeleon> jdh, yea, looks like that one's cutting luminum faster than I cut wood on my current one :)
[13:20:57] <FinboySlick> jdh: I think the video you link is a bit accelerated though.
[13:21:18] <FinboySlick> :s/link/linked/
[13:35:24] <jdh> really? Didn't notice, just looked really fast.
[14:35:37] <CaptHindsight> skunkworks: it's not sold at RadioShack but "improved" versions are available for 0.5x the price
http://www.3ders.org/articles/20130911-zeepro-introduces-zim-the-plug-play-dual-head-3d-printer.html
[14:37:22] <CaptHindsight> but still suffers from all the limitations of a glue gun
[14:39:47] <WalterN> lame
[14:41:39] <WalterN> why are there so many of those kinds?
[14:48:15] <CaptHindsight> WalterN: I've been asking around and the most often answer is "they are cheap"
[14:48:46] <WalterN> the form1 is basically the only viable option right now
[14:49:04] <WalterN> as far as I can tell
[14:51:05] <CaptHindsight> fear of photopolymers
[14:51:19] <WalterN> even SLS type
[14:51:20] <CaptHindsight> DIY is too complicated
[14:51:24] <WalterN> theres like... nothing
[14:51:38] <jdh> there is media hype
[14:51:43] <jdh> surely that counts
[14:52:22] <WalterN> CaptHindsight: a friend of mine does not think I can make a _good_ rapid prototyping machine :P
[14:53:13] <CaptHindsight> recently the reprap crowd has been talking about the SLS patent expiring and how things are really going to change next year
[14:54:54] <CaptHindsight> i used to hear about how safe extruding PLA was until that study about how the nanoparticles actually get released during extrusion
[14:55:19] <WalterN> heh, he also does not think I can make a (model) rocket guidance thing that will be able to hit one of his model airplanes
[14:56:40] * WalterN smirks
[14:57:06] <WalterN> it will happen, eventually
[14:59:53] <CaptHindsight> GGG is low cost and trendy, most people just want to play with them, most of the other methods are under overlapping patents
[15:01:12] <CaptHindsight> and the patent holders aren't interested in cooperating and actually coming up with viable additive manufacturing solutions, it's just making shareholders happy
[15:02:49] <CaptHindsight> so I really don't expect anything to come out of the west in the next couple of decades
[15:04:04] <CaptHindsight> so China will probably take over the industry the same way they did with computers in the 90's
[15:11:08] <WalterN> hmm
[16:44:25] <DJ9DJ> gn8
[16:44:36] <kengu> night
[17:55:25] <t12> b/win 15
[17:55:26] <t12> er
[18:58:36] <jp__> wonder if my servo tuning would change much when going from a 7i33 to a 7i77?
[18:59:21] <andypugh> I can't see any reason that it would.
[19:01:41] <jp__> same here but never know. think i will still pull the motors just to be safe
[19:03:01] <jp__> more likely for me to screw up the hal and cause a problem
[20:19:13] <eric_unterhausen> I have a machine with x,z linear and C rotary which spins on an axis along the z axis, is this how the lathe configs are in linuxcnc?
[20:20:00] <Tom_itx> any 'realterm' program users here?
[20:20:14] <eric_unterhausen> what's a realterm?
[20:20:25] <Tom_itx> windows terminal program
[20:20:35] <Tom_itx> very useful but i had a question about it
[20:20:47] <eric_unterhausen> does it do ssh?
[20:21:05] <Tom_itx> http://realterm.sourceforge.net/index.html#downloads_Download
[20:21:18] <Tom_itx> i use it more for serial diagnostics
[20:22:58] <eric_unterhausen> looks useful
[20:23:22] <Tom_itx> i just wondered if it's possible to save a setup for it
[20:23:43] <eric_unterhausen> recompile :)
