#linuxcnc | Logs for 2015-04-14

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[00:00:09] <andypugh> Yes, they were linked by walkways. Most have collapsed.
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[00:00:35] <andypugh> They were built in a hurry and most people don’t even know they exist.
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[00:03:11] <Tom_itx> http://en.wikipedia.org/wiki/Maunsell_Forts#/media/File:The_British_Army_in_the_United_Kingdom_1939-45_H34542.jpg
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[00:06:45] * JT-Shop waits for the VMC to finish the last T-slot
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[00:10:54] <JT-Shop> goodnight guys
[00:15:43] <Tom_itx> later
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[02:18:55] <Cromaglious_> I really need to get some 608zz bearings and make some v block wheels for them on my lathe
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[03:07:21] <zeeshan> cnc'ers
[03:07:23] <zeeshan> https://www.flickr.com/photos/128539016@N05/16311796716/
[03:07:32] <zeeshan> what is that tool with the yellow diamond insert
[03:07:37] <zeeshan> no markings on it
[03:10:30] <zeeshan> it makes no sense to me
[03:10:45] <zeeshan> the way the angles of the inserts are it looks like it was meant to chamfer a specific tube/pipe
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[03:18:08] <Tom_itx> or a side cutting tool
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[03:19:26] <Tom_itx> or do you mean the one with the triangle?
[03:19:36] <Tom_itx> it looks like a chamfer cutter for sure
[03:19:38] <zeeshan> right above face mill
[03:20:20] <Tom_itx> doesn't look all that useful to me
[03:20:27] <zeeshan> me either
[03:20:27] <zeeshan> lol
[03:20:31] <zeeshan> i dont think ill use it
[03:20:39] <Tom_itx> but
[03:20:43] <zeeshan> if i need to corner something
[03:20:46] <zeeshan> i can use the end mill
[03:20:52] <zeeshan> and if ineed to chamfer something
[03:20:55] <zeeshan> i use the chamfer mil
[03:20:55] <Tom_itx> since the lower one is an inside chamfer maybe that one is an exterior chamfer
[03:21:05] <Tom_itx> for a specific job like you said
[03:21:16] <zeeshan> yea
[03:21:21] <zeeshan> i bet they were using thjat a lot
[03:21:22] <zeeshan> haha
[03:21:25] <zeeshan> to need something liek that
[03:22:06] <Tom_itx> can't tell what the top one is
[03:22:13] <zeeshan> thats a chamfer one too
[03:22:36] <zeeshan> the big chamfder one
[03:22:37] <Tom_itx> looks like it was rubbing on the top edge of it
[03:22:39] <zeeshan> i dont think is also that useful
[03:22:58] <Tom_itx> nope
[03:23:04] <zeeshan> cause youll never use that to chamfer the inside
[03:23:05] <zeeshan> of something
[03:23:07] <zeeshan> its too damn big
[03:23:14] <zeeshan> and also on the outside, if its a curved feature
[03:23:21] <Tom_itx> depends what you are making i suppose
[03:23:27] <zeeshan> its pretty useless there unless it was a huge radius
[03:23:32] <zeeshan> ill keep it,
[03:23:35] <zeeshan> but get rid of the other tool
[03:23:39] <zeeshan> trying to get rid of things i dont need
[03:23:55] <Tom_itx> but you won't know you need em until you get rid of it
[03:24:04] <zeeshan> well that interior chamfer mill
[03:24:06] <zeeshan> ill neve ruse
[03:24:20] <zeeshan> the only time i can see me using that is if i had a 2" pipe
[03:24:35] <zeeshan> that was like longer than what i could fit on the lathe
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[03:37:25] <zeeshan> http://www.ebay.com/itm/2-NIKKEN-BT-40-TAPER-END-MILL-TOOL-HOLDERS-1-4-5-16-/371304805356
[03:37:27] <zeeshan> boy these are sexy
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[06:12:04] <Jymmm> ssi: Got those passive ethernet power adapters, not bad
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[06:58:24] <Deejay> moin
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[10:48:17] <_methods> zeeshan: if you're talking about the face mill with the VNMG inserts in it
[10:48:29] <_methods> it's a face mill for aluminum, brass, and bronze
[10:48:43] <_methods> it will leave a really good finish on it compared to regular face mills
[10:49:15] <archivist> I thought he was looking at the V tool above to the right
[10:49:39] <_methods> that's just a regular csink
[10:49:44] <_methods> csink/chamfer tool
[10:49:53] <archivist> deburr
[10:50:00] <archivist> or whatever
[10:51:16] <_methods> well he scored some nice cutters in that lot
[10:51:29] <_methods> all thos mitsubishi cutters are good stuff
[10:52:12] <_methods> nice sandvik copy mill and that face mill with the VNMG's work great on non-ferrous stuff like brass/bronze/copper
[10:52:27] <_methods> aluminum too
[10:52:59] <_methods> i used to use one with 3 inserts and i've never been able to find another one like
[10:53:12] <_methods> it was so beat up i couldn't ever get any maker marks off it
[10:53:17] <archivist> make one
[10:54:48] <archivist> I wanted a thread mill http://www.collection.archivist.info/archive/DJCPD/PD/2008/2008_10_07_cnc_Thread_mill_tool/p1010245.jpg
[10:55:15] <_methods> those might be DNMG's in there
[10:55:19] <_methods> not vnmg's
[10:59:30] <_methods> i guess i will have to make my own hehe
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[12:40:37] <_methods> zeeshan: those may not be dnmg/vnmg in there it's actually probably another style just looks like vnmg/dnmg
[12:40:47] <_methods> similar to the bxd mitsubishi cutters
[12:40:50] <_methods> http://www.mitsubishicarbide.com/EU/West/product/pdf/b027e.pdf
[12:43:02] <_methods> i guess ex kenna makes a mill called the ripper that uses similar geometry inserts
[12:44:54] <_methods> http://latheinserts.com/category.sc;jsessionid=84056EB7C141163E32B9BFCCA3C6E884.qscstrfrnt01?categoryId=86
[12:46:41] <_methods> if you do one way facing passes with those cutters they'll leave a mirror like finish in copper/brass/bronze/aluminum
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[13:31:46] <JT-Shop> anyone make a telescoping cover for the back side of a std 6 vise?
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[13:52:08] <archivist> CaptHindsight, did you ever find a better low cost webcam ?
[13:54:02] <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
[13:54:43] <CaptHindsight> archivist: we used similar
[13:55:48] <archivist> I want to digitise microfiche as well as measure
[13:56:21] <CaptHindsight> but for precision we looked for bargains on ebay for real lenses and cameras or bought new
[13:57:16] <archivist> I am finding too many lies about megapixels
[13:57:33] <CaptHindsight> thats an understatement
[13:57:54] <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
[13:58:32] <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 :)
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[14:00:17] <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
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[14:06:58] <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
[14:07:29] <CaptHindsight> http://dberard.com/home-built-stm/stm-scans/ that scan is 4nm across, probably too much res for microfiche :)
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[14:10:15] <CaptHindsight> we either used <$30 webcams or >$1k camera bodies and lenses
[14:10:29] <CaptHindsight> not much in between unless you find a bargain
[14:11:08] <CaptHindsight> if the 5MP sensor is a 5MP that might be a good deal
[14:11:14] <archivist> been contemplating, linuxcnc and a scanner ccd
[14:17:13] <CaptHindsight> http://www.ostec.com.cn/product_detail.php?ProId=18&CateId=31 more specs on that MC500
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[14:20:17] <archivist> some of the same images as the ebay listing but seems it may be a real 5mp sensor
[14:22:26] <archivist> https://www.aptina.com/products/image_sensors/mt9p001i12stc/
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[14:53:47] <CaptHindsight> archivist: the sensor is available at Digikey http://www.digikey.com/product-detail/en/MT9P001I12STC/557-1455-ND/2074134
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[14:55:38] <archivist> and digikey are in the UK too :)
[14:56:01] <CaptHindsight> also http://www.digikey.com/product-detail/en/MT9T031C12STC/557-1452-ND/2170649
[14:57:51] <archivist> other part had no stock, this one 300+
[14:57:58] <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
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[14:59:55] <CaptHindsight> ^^ CMOS sensor with processor all 1280 x 800 or higher res
[15:00:04] <CaptHindsight> in stock
[15:04:42] <archivist> http://www.digikey.com/product-detail/en/OV14825-A16A/884-1030-ND/3190557
[15:06:28] <CaptHindsight> at that price why are there no <$50 14Mp webcams?
[15:07:28] <archivist> what does it need to drive it :)
[15:08:28] <archivist> datasheets are a bit useless
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[15:13:26] <archivist> and no better off the makers site unless you sign your life away
[15:19:08] <CaptHindsight> archivist: them maybe stick with http://www.aptina.com/assets/downloadDocument.do?id=808
[15:19:16] <CaptHindsight> http://www.digikey.com/product-detail/en/MT9T031C12STC/557-1452-ND/2170649
[15:22:55] <archivist> shame that one is only half the resolution but the same cost as the omnivision
[15:27:20] <CaptHindsight> will the world end if they shared the specs?
[15:27:51] <CaptHindsight> what competitive advantage do they hold by keeping the interface and API under NDA?
[15:28:32] <CaptHindsight> is it just perceived power by keeping the info private?
[15:28:53] <archivist> utter stupidity methinks
[15:28:58] <CaptHindsight> are they violating someones patent?
[15:29:09] <CaptHindsight> and this keep it a bit more secret
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[15:29:59] <CaptHindsight> we aren't asking them for copies of their tape to make masks
[15:30:16] <CaptHindsight> just how to interface to it
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[15:30:49] <archivist> or silly money http://www.ebay.co.uk/itm/Tucsen-H-694CICE-6-1mp-Pro-Research-Colour-Cooled-CCD-Microscope-Astro-Camera-/121608264869
[15:32:21] <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
[15:32:27] <archivist> I have one
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[15:38:48] <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
[15:40:26] <CaptHindsight> unless you have to scan quickly I'd use a <$50 webcam and then scan + frame average or use a line scanner CCD
[15:42:02] <archivist> there can be hundreds of images per fiche
[15:42:08] <CaptHindsight> http://simplecv.org/
[15:43:20] <archivist> price performance seems to be linescan ccds
[15:43:29] <CaptHindsight> what's the resolution of the fiche (lines per inch or similar)
[15:45:12] <CaptHindsight> http://www.worldmicrographics.com/faq-home.htm
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[15:47:34] <archivist> a page width can be reduced to 4.3mm in an example I just measured
[15:54:03] <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)
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[17:10:26] <CaptHindsight> http://www.ebay.com/itm/Dalsa-Piranha-2-2K-Resolution-Line-Scan-Camera-P2-42-02K40-50E-USG-/371301004501 US $192.95
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[17:12:50] <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
[17:18:10] <archivist> been contemplating just taking an old scanner apart, making new gearing and futzing with the lens to make it scan tiny images
[17:19:01] <archivist> so all the interfacing with the chip like that is already done
[17:19:02] <CaptHindsight> why not if you already have one
[17:19:46] <archivist> one? have about 3 in bits I have looked at the gizzards of :)
[17:21:07] <archivist> two problems to solve, focus and find images
[17:21:39] <archivist> and the third usual problem, lack of roundtuits
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[18:04:01] <JT-Shop> when you find some email me a few
[18:07:05] <archivist> I just had a quick tidy in one shed and in the lounge, found none
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[18:09:29] <archivist> hmm opencv is a bit blank on explaining how to control camera focus
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[18:21:53] <jdh_> turn the ring
[18:25:45] <archivist> not funny on an automated fiche scanner
[18:26:20] <archivist> or a measuring machine where the focus gives height info
[18:27:17] <Rab> archivist, I have a similar interest in scanning 8mm film. Looking for good resolution and color, low distortion.
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[18:28:44] <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.
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[18:29:44] <archivist> need to just extend the lens so it can do close up probably
[18:30:00] <Rab> I have old 8mm projectors, but the transport and optics are strictly consumer-grade. I'd like to capture at 1080p or better.
[18:30:46] <Rab> CHDK looks like a winner, though, for programmatic shutter release and upload over USB.
[18:31:11] <archivist> trouble is were they taken on consumer grade too, and therefore need the image positioning as a post process
[18:32:26] <Rab> Yeah, I think I'll use a CCD array from a fax machine to position each frame with a stepper.
[18:33:13] <Rab> Assuming each frame corresponds to the sprocket hole, which might be a generous assumption.
[18:33:53] <archivist> they rattle about, you may need to use the image detail to fix it up
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[18:34:21] <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.
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[18:35:27] <archivist> if they use the border I would expect some jitter, I think the pros use the image detail
[18:35:29] <Rab> 8mm Kodachrome was surprisingly good if properly exposed. At least DVD quality.
[18:36:44] <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
[18:37:34] <XXCoder> 13 euro. cheap
[18:37:41] <XXCoder> + ship
[18:38:16] <Rab> I have a pair of PS SD1300IS, one was free...seems like a good starting point.
[18:39:32] <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.
[18:40:07] <XXCoder> whats you guys tying to do?
[18:40:47] <Rab> Me = 8mm film, archivist = microfiche.
[18:41:01] <XXCoder> scan em in?
[18:41:05] <archivist> yes
[18:41:31] <XXCoder> if I recall, some scanners has feature for scanning microfiche. no idea on 8 mm film
[18:41:35] <Rab> archivist, would you use an X/Y table to image each page of the fiche?
[18:41:57] <archivist> that is what I am thinking of yes
[18:41:59] <XXCoder> probably could build some custom cnc to scan each frame
[18:42:16] <XXCoder> then use recent invention to align frames
[18:42:43] <archivist> I have some parts from old readers ready to be repurposed
[18:43:11] <Rab> Seems like desktop scanners wouldn't have enough resolution, even at 2400dpi.
[18:44:15] <archivist> my scanner useless http://www.collection.archivist.info/archive/fiche_experiments/Epson_perfection3200photo/page0003.jpeg
[18:44:45] <XXCoder> bit blurry
[18:45:10] <Rab> You could probably sharpen to legibility, but I'm sure it's not satisfactory for blueprints.
[18:45:12] <archivist> a camera on a stand with a closeup extension http://www.collection.archivist.info/archive/fiche_experiments/50mm_on_stand/IMG_1060.JPG
[18:46:18] <Rab> archivist, do you have a strategy for removing dust before imaging?
[18:46:50] <archivist> yes/no/depends
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[18:48:39] <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.
[18:49:23] <archivist> canon rebel looking at reader screen http://www.collection.archivist.info/archive/DJCPD/PD/2011/2011_09_12_fiche_experiment/IMG_1204.JPG
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[18:50:06] <Rab> The best film transfer uses a "wet gate", but I don't think that's something I can rig up at home.
[18:51:05] <XXCoder> dip reel in water, air blast then scan?
[18:51:44] <Rab> I think that might leave water spots, and it won't address oil contaminants.
[18:52:05] <XXCoder> cotton idle rollers?
[18:52:14] <Rab> Commercial wetgate apparently uses perchloroethylene.
[18:52:30] <Rab> Hmm...shedding cotton fibers.
[18:52:42] <XXCoder> rollers probably would get dusty and - yeah. and also might damage
[18:53:23] <Rab> Microfiber cloth shouldn't scratch the film itself, but as it picks up particles those could scratch.
[18:53:25] <archivist> "lint free" cloth rubber
[18:53:52] <XXCoder> build up is still problem. unless theres system to keep those clean
[18:54:08] <archivist> vacuum the cloth before it comes around for the next use
[18:54:27] <Rab> Film at that scale is very resiliant if you don't care how it looks, and terribly fragile if you do.
[18:55:23] <archivist> if the depth of field is right the dust and scratches are out of focus
[18:55:42] <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.
[18:55:52] <Rab> Yeah, that. ^_^
[18:56:13] <XXCoder> air blast to remove as much dust as possible
[18:56:27] <XXCoder> then do that process. that probably would be suffecent?
[18:56:41] <Rab> But at that DoF, you do have a hard time imaging all the emulsion layers. Not a problem with monochrome.
[18:56:50] <Rab> XXCoder, that's what I'm thinking.
[18:57:34] <Rab> Air blast, with enough filtration and direction that you're not just recycling a cloud of dust particles.
[19:00:49] <XXCoder> air blast going directly to fan to external
[19:01:03] <XXCoder> and other fans input filtered air
[19:01:09] <XXCoder> result: postive pressure
[19:01:31] <archivist> just use a domestic hepa filtered vacuum cleaner
[19:01:56] <archivist> note they are not designed for closed loop though
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[19:04:18] <archivist> this was deadly boring canon rebel->reader screen http://www.collection.archivist.info/archive/DJCPD/PD/2011/2011_06_27_RD53A/
[19:04:51] <XXCoder> plan to do ocr?
[19:05:23] <archivist> not really, some of the stuff use the same character for 0 and O
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[19:11:33] <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.
[19:12:13] <archivist> I have one of those ready to steal parts from under a sheet in the garden
[19:12:34] <cradek> I'm pretty sure those machines are still available for use in the public library, a few miles from me
[19:13:06] <archivist> cost per page makes using them a bit silly though
[19:13:14] <cradek> sure, depends
[19:13:16] <Rab> Digital imaging should be a near-miraculous improvement.
[19:16:10] <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
[19:16:37] <XXCoder> fancy.
[19:18:07] <XXCoder> man wish im good on soldering
[19:18:13] <XXCoder> its only way to root my kindle
[19:18:17] <Rab> Haha, mandraulic.
[19:18:35] <XXCoder> https://i.imgur.com/5Jj7ys6.jpg
[19:18:45] <XXCoder> not my image
[19:19:09] <archivist> use real wire not graphics :)
[19:19:17] <XXCoder> again, not my pic lol
[19:19:45] <Rab> Doesn't look bad at all.
[19:20:14] <Rab> Maybe practice with some kynar wire and a scrap PCB first.
[19:20:23] <archivist> only 8 joints to do
[19:21:27] <archivist> I wonder if the modern college technicians have to do a soldering exam
[19:22:15] <archivist> we had a tag strip, some cable, coax and a couple of parts for our examination
[19:22:22] <Rab> EE, probably not.
[19:22:45] <Rab> CS/EE = can't code or solder.
[19:23:13] <archivist> I did radio and tv servicing
[19:25:55] <roycroft> i know a chemistry professor who has never been in a chem lab, not even in undergrad school
[19:26:04] <roycroft> i can imagine engineers/technicians who have never soldered
[19:26:45] <roycroft> why said professor has never been in a lab i do not understand
[19:26:48] <roycroft> labs are the fun part
[19:27:04] <CaptHindsight> people that can actually do things are considered a threat to the establishment, so they just teach theory
[19:27:19] <archivist> cannot do it therefore teach it
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[19:27:37] <Rab> An engineer doesn't need to solder, that's not what the degree is expected to provide.
[19:27:52] <roycroft> an ee should know how to solder
[19:27:52] <Rab> And their job may never require it.
[19:28:00] <roycroft> it's important to have some practical experience
[19:28:06] <CaptHindsight> take any tech company and try to find out who really develops whatever they make
[19:28:10] <archivist> if the engineer cannot do his own experiments he is useless
[19:28:11] <Rab> A technician must solder, or they'll be out of a job.
[19:28:45] <roycroft> i've had to work with a lot of civil engineers who never leave their office
[19:29:17] <roycroft> when i'm out in the field managing a project and something goes wrong i can usually figure out a solution quickly
[19:29:18] <CaptHindsight> you might be surprised by the few people that actually design, develop, engineer etc whatever they make
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[19:29:27] <Rab> Just like ME != machinist.
[19:29:39] <roycroft> the ivory tower engineers never seem to be able to sort things out quickly or easily
[19:29:57] <roycroft> in the meantime there's a construction crew standing by with a foreman who is getting more upset by the minute
[19:30:18] <roycroft> i've seen a lot of really bad designs that look good in theory, capthindsight
[19:30:23] <roycroft> i don't think i'd be surprised at all
[19:30:51] <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
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[19:31:19] <CaptHindsight> I've met a lot of construction people that knew what they were doing but didn't want to work too hard
[19:31:31] <archivist> and any teaching
[19:31:37] <roycroft> drawing a nice picture of some underground conduit connecting to some access vaults is all nice and good
[19:31:57] <roycroft> digging up the ground and dealing with all the crap you encounter in the real world is quite a different thing
[19:32:18] <roycroft> coming up with two solutions for a problem on paper is one thing
[19:32:42] <roycroft> having the experience to know which one can be implemented more quickly/inexpensively quite another thing
[19:33:01] <roycroft> practical experience makes for a much better engineer in almost every case
[19:34:07] <CaptHindsight> how many people can actually tell if another person is any good at the job required?
[19:34:39] <roycroft> i'm pretty good at reading peopile
[19:34:40] <archivist> certainly not HR dept
[19:34:41] <roycroft> people
[19:35:07] <roycroft> hr departments should, for the most part, be eliminated from the hiring process
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[19:50:22] <malcom2073> Really the only thing HR should do, is the intake paperwork after the proper person is selected.
[19:51:29] <XXCoder> LOL http://www.businessinsider.com/oregon-runner-loses-race-celebrating-too-early-2015-4
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[19:51:38] <XXCoder> what a dumb way o lose
[19:51:42] <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
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[19:57:41] <Cromaglious_> XXCoder, that's really funny
[19:57:49] <XXCoder> yeah
[19:58:02] <Cromaglious_> what a dweeb
[19:59:04] <XXCoder> more like just dumb moment
[20:10:27] <XXCoder> I love the engineer guy. https://www.youtube.com/watch?feature=player_embedded&v=hUhisi2FBuw
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[20:24:09] <zeeshan> hehe
[20:24:16] <zeeshan> i just did some drawing
[20:24:21] <zeeshan> using that exact same setup , but in stainless
[20:29:14] <XXCoder> zeeshan: the soda can thing?
[20:29:23] <zeeshan> yea
[20:29:33] <zeeshan> you start with a blank of known diameter
[20:29:38] <zeeshan> then draw it
[20:29:45] <zeeshan> to get the limit draw ratio
[20:29:59] <zeeshan> but also to study the anisotropy of the sheet
[20:30:11] <XXCoder> interesting
[20:30:20] <zeeshan> http://aluminium.matter.org.uk/content/media/images/form-deepDrawnCupsLines.jpg
[20:30:25] <zeeshan> you get those peaks and valleys
[20:30:42] <zeeshan> because the sheet is stronger in one direction of pull
[20:30:44] <zeeshan> vs the other
[20:32:47] <XXCoder> interesting
[20:37:10] <Cromaglious_> yeah, you get lines built up on the crystal angle lines
[20:37:35] <zeeshan> ??
[20:37:54] <Cromaglious_> aluminium has a crystaline structor
[20:38:22] <Cromaglious_> structure
[20:38:28] <zeeshan> i dont get your point
[20:38:30] <zeeshan> so is stainless
[20:38:35] <zeeshan> and a bunch of other metals
[20:38:39] <Cromaglious_> smaller crystals
[20:39:00] <zeeshan> aluminum can also have large crystals
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[20:39:57] <zeeshan> http://www.scielo.br/img/revistas/rem/v64n1/a09img03.jpg
[20:40:04] <zeeshan> when you roll metal into sheet form
[20:40:09] <zeeshan> the grains get elongated like that
[20:40:37] <Cromaglious_> drawing it thin, causes it to stretch on the weak parts of the crystalline structure so you get the wavies at the edge.
[20:40:58] <zeeshan> thats partly true
[20:41:09] <zeeshan> the fact that it happens at a repetitive pattern
[20:41:14] <Cromaglious_> rolling is more of a crushing instead of drawing
[20:41:15] <zeeshan> means its not random
[20:41:22] <zeeshan> its due to the anisotropy of the sheet
[20:42:06] <Cromaglious_> so the deformation behaves a bit differently.
[20:42:07] <zeeshan> if the material was completely isotropic
[20:42:10] <zeeshan> and you tried to draw it
[20:42:17] <zeeshan> you wouldnt get those peaks and valleys
[20:42:23] <Cromaglious_> true
[20:42:25] <zeeshan> and if you did, it wouldnt be easily visible
[20:42:25] <JT-Shop> https://www.youtube.com/watch?v=vmlncLXKpVc
[20:43:09] <JT-Shop> opps wrong wolf creek https://www.youtube.com/watch?v=1hbtvNAE_lI
[20:43:35] <Cromaglious_> but nothing is completely isotropic except flaw free diamonds being the closest.
[20:43:40] <JT-Shop> this is where I ride
[20:43:59] <XXCoder> any of you guys grow crystals?
[20:44:08] <zeeshan> Cromaglious_: if you took cold rolled sheet, and heat treated it so you allowed recrystallization
[20:44:15] <Cromaglious_> not in 40 years or so
[20:44:19] <zeeshan> you'd get pretty close to uniform grain structure
[20:44:28] <zeeshan> will it be perfect? no
[20:44:31] <zeeshan> close to perfect? yea :P
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[20:45:02] <Cromaglious_> zeeshan, you'd get more uniform wavies
[20:45:22] <zeeshan> http://www.numisheet2011.org/Benchmarks/BM1_Jan27_2011.files/image001.jpg
[20:45:26] <zeeshan> cup on the right
[20:45:28] <zeeshan> that hasnt been trimmed
[20:45:31] <zeeshan> is very close to isotropic
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[20:48:28] <XXCoder> engineers. heh
[20:48:46] <zeeshan> XXCoder: we're anal :)
[20:48:49] <zeeshan> some of us
[20:49:08] <zeeshan> before i used to assume a lot
[20:49:19] <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
[20:49:25] <XXCoder> zeeshan: http://www.beheadingboredom.com/wp-content/uploads/2014/07/science-versus-engineering-versus-liberal-arts.jpg
[20:49:28] <zeeshan> now if i dont know it from an analytic perspective
[20:49:30] <zeeshan> then i dont really know it :P
[20:49:42] <zeeshan> rofl XXCoder!
[20:49:48] <zeeshan> hahahaha
[20:50:10] <zeeshan> Cromaglious_: okay, think what you'd like :)
[20:50:34] <Cromaglious_> science - what it should do, engineering - what it really does, liberal arts - why I want it to do.
[20:50:36] * zeeshan got all his parts from china!
[20:50:52] <Cromaglious_> s/why/what/
[20:50:54] <zeeshan> slightly more than a month
[20:52:15] <Cromaglious_> <- comes from a family of engineers.
[20:52:28] <zeeshan> are you one?
[20:52:52] <Cromaglious_> more shade tree enganeer
[20:53:34] <Cromaglious_> I tend to fix degree'd engineers mistakes
[20:53:46] <zeeshan> i hope not with deep drawing! :P
[20:55:24] <XXCoder> laters
[20:55:57] <Cromaglious_> not yet...
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[20:57:07] <R2E4> hi all
[20:57:08] <Cromaglious_> most of my work experience is in software engineering
[20:57:39] <Cromaglious_> I was always fixing the H1 visa engineers code.
[20:58:24] <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.
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[20:59:01] <R2E4> http://pastebin.com/cWjzGFjU is the gcode. it is just pocketing three small holes with a .25 endmill
[20:59:02] <Cromaglious_> R2E4, G60 I think
[20:59:12] <Deejay> gn8
[20:59:30] <Cromaglious_> you need to set exact path
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[21:00:17] <Cromaglious_> g61
[21:00:27] <Cromaglious_> you're probably running in G64 mode
[21:00:47] <R2E4> line 417 tells it to go to safe depth
[21:01:58] <Cromaglious_> G20 G40 G49 M6 T1 change to G20 G40 G49 G61 M6 T1
[21:02:49] <zeeshan> isnt g61 active by default?
[21:03:10] <Cromaglious_> no
[21:03:14] <zeeshan> what is
[21:03:28] <Cromaglious_> G64
[21:03:59] <R2E4> Can I run in G64 all the time?
[21:04:21] <Cromaglious_> G664 is constant velocity
[21:04:31] <Cromaglious_> it tends to round out paths
[21:05:01] <Cromaglious_> on retracts to safe Z you want to be in G61
[21:05:24] <zeeshan> ill need to check next time im machining on the mill
[21:05:42] <R2E4> That would be in my post then.
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[21:05:48] <Cromaglious_> or retract to a higher level to make the curve happen out of the hole
[21:06:24] <zeeshan> i wonder what your g64 tolerance is set to
[21:06:31] <R2E4> my retract is set to .2
[21:06:36] <zeeshan> that should be fine
[21:06:42] <zeeshan> i retract .2 all the time
[21:06:59] <zeeshan> it shouldnt be curving out
[21:07:05] <R2E4> I only notice it when I am pocketing a small hole
[21:07:08] <zeeshan> should be going straight up and move
[21:07:15] <zeeshan> how small
[21:07:15] <Cromaglious_> try with a g0Z.5
[21:09:08] <Cromaglious_> or add a line 416.5 G61 and a line 417.5 G64
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[21:10:22] <R2E4> I am trying it now
[21:12:33] <R2E4> the .5 retract worked.
[21:12:54] <R2E4> that would only work untill a certain depth thpough.
[21:14:17] <Cromaglious_> or you make a G0Z.5 and next line G0Z.2
[21:14:46] <Cromaglious_> so the curve would be on the G0Z.2 movement
[21:14:47] <R2E4> I dont want to have tpo worry about this everytime I run some code.
[21:15:18] <zeeshan> R2E4: did you try g61
[21:15:21] <Cromaglious_> look up G61 and G64 behavior
[21:15:24] <R2E4> better to tell my post to switch to G61 when retracting and back to g64
[21:15:31] <zeeshan> you can also decrease g64 tolerance.
[21:15:37] <R2E4> or visa versa
[21:15:39] <zeeshan> to stop it from steering away so far away
[21:16:10] <R2E4> there should be CV settings in linuxcnc
[21:16:54] <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.
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[21:33:47] <Thomaxo_> Hello everyone, could i ask for some help?
[21:34:26] <Thomaxo_> I'm planning to buy a small CNC (600mm X 800mm), but, software-wise i'm pretty clueless when it comes to CAM
[21:35:36] <Thomaxo_> Modeling using CAD software (rhino and autoCAD) goes well, but, there seems to be more difficulty when it comes to generating Gcode
[21:36:16] <Thomaxo_> Does anyone have a nice reference or advice that could help me out in choosing the most capable yet somewhat-friendly software? :)
[21:38:26] <Cromaglious_> Thomaxo_, I'm still fighting that myself...
[21:38:50] <MrSunshine> ough .. a heap of new problems ... far to low humidity in the wood workshop ...
[21:38:52] <MrSunshine> sigh :P
[21:39:39] <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
[21:40:17] <Cromaglious_> MrSunshine, static?
[21:40:35] <MrSunshine> Cromaglious_: results in to low humidity in the wood =)
[21:40:44] <MrSunshine> and yeah . .alot of static :P
[21:41:11] <Cromaglious_> ahhh humidifier... or a pot full of water on a hotplate
[21:41:51] <MrSunshine> Cromaglious_: got a bucket with a towel in now infront of the heating fan .. (blows even when not heating) =)
[21:41:59] <MrSunshine> lets see if it gets it up a bit =)
[21:42:02] <Cromaglious_> rig a swamp cooler with a humidity sensor
[21:42:09] <Tom_itx> Thomaxo_, does rhino have a cam plugin for it?
[21:42:33] <Cromaglious_> Tom_itx, I believe there is one available..
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[21:42:47] <Cromaglious_> rhino is out of my budget
[21:42:47] <MrSunshine> Cromaglious_: yeah thinking something like that ... problem is keeping mold etc at bey
[21:42:59] <Tom_itx> well he said he used rhino...
[21:43:09] <Cromaglious_> stick a UV light inside the swamp kooler
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[21:43:15] <Thomaxo_> well yeah, the trail once for school :)
[21:43:29] <Tom_itx> cambam
[21:43:33] <Tom_itx> look into that
[21:43:43] <Thomaxo_> I will! :)
[21:43:49] <Tom_itx> i didn't care for it but some like it
[21:43:55] <Tom_itx> i've got commercial software
[21:44:10] <Thomaxo_> i dont mind cashing out though
[21:44:19] <Thomaxo_> well, up till 200 dollars
[21:44:19] <Tom_itx> how much cash?
[21:44:22] <Tom_itx> heh
[21:44:28] <Tom_itx> i've got 6-8k in mine
[21:44:35] <Thomaxo_> :)
[21:46:48] <Thomaxo_> letc c
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[21:49:47] <Thomaxo_> rhino academic will cost me 200 dollars, rhinoCAM.. 500 to 30,000
[21:51:51] <Tom_itx> that's the bad thing about student discounts
[21:51:58] <Tom_itx> they get you used to something you can't afford
[21:54:59] <Thomaxo_> rhino itself is pretty ok
[21:55:17] <Thomaxo_> 500 full retail price, that includes grasshopper
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[21:56:20] <Thomaxo_> Nevermind, 1000*
[21:56:43] <Thomaxo_> still reasonable though
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[21:59:33] <JT-Shop> dang plasma fires but won't stay lit
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[22:01:27] <_methods> check all consumables?
[22:01:34] <_methods> ground?
[22:02:18] <Cromaglious_> breaker?
[22:02:37] <Cromaglious_> signal ground?
[22:02:44] <Cromaglious_> relay?
[22:03:07] <Cromaglious_> enough beer in the fridge?
[22:03:27] <Cromaglious_> Air pressure.
[22:04:03] <Cromaglious_> won't stay lit... HF problem?
[22:04:24] <Cromaglious_> will it work on manual control?
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[22:06:35] <Cromaglious_> is it: plasma cutter itself: control circuit, hf circuit, line power circuit. is it interconnect. is it controller?
[22:07:00] <JT-Shop> crap the ground is off
[22:07:20] <Cromaglious_> ahhh ID10T error
[22:07:34] <_methods> those are the kind of problems i like hehe
[22:07:35] <JT-Shop> I only move it when I have to load a 4 x 4 sheet as it is in the way
[22:07:36] <_methods> easy fix
[22:07:56] <JT-Shop> I need to put a tab on the bottom of the water table for the ground
[22:08:13] <Cromaglious_> That sounds like an ideal idea
[22:08:22] <JT-Shop> been a long day thanks for fixing my plasma _methods
[22:08:27] <Jymmm> ideally
[22:09:13] <Cromaglious_> would it be the idealistic ideal idea?
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[22:09:44] <Jymmm> that's all I had
[22:09:49] <Cromaglious_> hehe
[22:10:28] <Cromaglious_> id10T errors always bite me in the arse
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[22:12:37] <Cromaglious_> well I have a stack of delrin 3"x3"x1/2" squares ready to be cut for my touch probe body.
[22:13:11] <JT-Shop> well now my torch probe input is not working on the 7i76
[22:13:24] <Cromaglious_> ground?
[22:13:36] <Cromaglious_> bad switch?
[22:14:12] <Cromaglious_> bad wire?
[22:14:21] <_methods> haha no problem
[22:14:43] <Cromaglious_> bad neighbor?
[22:14:44] <_methods> the ole unhooked ground has gotten me a few times
[22:15:02] <Cromaglious_> rat chewed wire?
[22:15:32] <Cromaglious_> that was a $2000 problem on my old bosses BMX X5
[22:15:46] <Cromaglious_> well mouse chewed
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[22:16:07] * Cromaglious_ pokes R2E4
[22:16:31] <Cromaglious_> is R2E4 real or a ping timeout rejoin
[22:16:43] <JT-Shop> crap it ain't the switch, I wonder if I fried the 7i76 inputs
[22:17:09] <Cromaglious_> try the old jumper the input test then
[22:17:55] <Thomaxo_> i found this little interesting thingy http://www.g-forcecnc.com/index.html
[22:18:01] <Thomaxo_> affordable to
[22:18:09] <JT-Shop> hmm, the limits all work
[22:19:47] <Thomaxo_> hmm
[22:19:54] <Thomaxo_> you guys decide: yes/no: http://www.grzsoftware.com
[22:20:39] <Cromaglious_> hmm need to work on my 3040 to hold boards vertically
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[22:21:25] <Cromaglious_> ouch $104.99
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[22:23:30] <Cromaglious_> man that's WAY outside my budget
[22:23:45] <Cromaglious_> I have to live on my disability check
[22:24:26] <Cromaglious_> at least on the car it was $92 for a radiator instead of $1500 for the head gasket set
[22:25:01] <Thomaxo_> won't good cnc software earn you back money easily?
[22:25:20] <Cromaglious_> NEVER EVER EVEN THINK about getting a caddy with a northstar engine even for free
[22:25:32] <Cromaglious_> engines are TOTAL crap
[22:26:21] <Cromaglious_> When I got it, I should have turned around and sold it
[22:27:24] <SpeedEvil> Thomaxo_: Good CNC software only earns you money if you're physically, mentally, and legally able to reliably do buisness with people.
[22:28:01] <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
[22:28:34] <Thomaxo_> hmm true
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[22:29:09] <Thomaxo_> ironically i plan to buy a CNC mill because of my disability though
[22:29:10] <Thomaxo_> lol
[22:30:18] <JT-Shop> looks like a bad micro switch... I wonder if I have one that I can find?
[22:30:51] <Thomaxo_> anyone have experience with Qcad?
[22:31:01] <Thomaxo_> seems to be solid based on the site
[22:33:42] <Tom_itx> cheaper than a 7i76
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[22:40:22] <tiwake> Thomaxo_: http://www.freecadweb.org/ if you havent seen it before
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[22:41:26] <Thomaxo_> ah yes, was referring to the Qcad/CAM package :) seems to be 2d only though..
[22:41:51] <Thomaxo_> pretty much covered in cad software (thank god for free student software)
[22:41:52] <tiwake> Thomaxo_: pycam might be worth looking at, depending
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[22:42:11] <Thomaxo_> i'll look into that
[22:42:17] <tiwake> http://pycam.sourceforge.net/
[22:42:24] <Thomaxo_> thanks :O
[22:43:25] <tiwake> a year since last update?
[22:44:12] <Thomaxo_> hmm
[22:44:25] <Thomaxo_> pyCAM might do the trick though, i have experience in python
[22:45:48] <Thomaxo_> or i just spend 200 euro on meshCAM
[22:45:54] <Thomaxo_> and spare me the headaches?
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[22:46:16] <tiwake> I wouldent think it needs any work
[22:46:29] <tiwake> well, do do anything I would need it to do
[22:46:39] <tiwake> but I've never actually used it, so cant say for sure
[22:47:50] <Thomaxo_> no harm in trying pyCAM first :)
[22:48:05] <andypugh> I have found PyCAM to be unusably slow. CamBam is about 75% as good as MeshCAM and 50% the price.
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[22:51:16] <Thomaxo_> hmm
[22:51:33] <Thomaxo_> i'll look at lots and lots of videos about the 2
[22:51:51] <Thomaxo_> or 3 perhaps if i can get pyCAM to run :)
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[23:06:04] <zeeshan> https://www.youtube.com/watch?v=Om4HDvJstsU
[23:06:09] <zeeshan> tested the import parting tool
[23:06:12] <zeeshan> w/ korloy insert
[23:06:15] <zeeshan> if anyone is intersted
[23:06:24] <zeeshan> i tried 400 sfm off camera
[23:06:35] <zeeshan> seems like i get more stringy chips if i do that
[23:07:07] * zeeshan needs to convert to analog control of spindle instead of modbus -- wonders if anyone notices the delay in speed changes
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[23:10:22] <malcom2073> My untrained eye doesn't!
[23:10:24] <malcom2073> :P
[23:10:33] <Tom_itx> my slow pc doesn't :D
[23:10:39] <zeeshan> lol
[23:11:04] <zeeshan> i give A+ to import tool block + parting blade
[23:12:32] <Thomaxo_> i'm gonna ask something weird:
[23:12:39] <Thomaxo_> is there a freehand cnc tool?
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[23:13:19] <Thomaxo_> you drag the mill to point A, then to point B, and then you say "mill that plz"
[23:13:46] <Tom_itx> alot of machines have mdi
[23:13:57] <Tom_itx> some have graphics
[23:14:37] <Thomaxo_> mission data interface?
[23:15:28] <Thomaxo_> aaah midi
[23:15:47] <Tom_itx> manual data input
[23:16:00] <zeeshan> Thomaxo_: thats how you program robots
[23:16:08] <zeeshan> you move it in world space
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[23:16:11] <zeeshan> and grab the point
[23:16:17] <Tom_itx> zeeshan you need to get that thing on center!
[23:16:28] <zeeshan> then in the sequencing you choose the point
[23:16:36] <zeeshan> Tom_itx: it is on center
[23:16:46] <andypugh> Thomaxo_: There is a sort-of teach-in module included in LinuxCNC. I don’t know if it actually works.
[23:16:52] <zeeshan> not sure why its leaving that nub
[23:16:57] <Thomaxo_> i'll google that :O
[23:16:58] <zeeshan> maybe blade isn't perpendicular?
[23:17:06] <Tom_itx> you got something off
[23:17:09] <Thomaxo_> i mainly need the cnc to replace my faulty arm
[23:17:19] <Thomaxo_> to cut pieces for architectural models
[23:17:21] <zeeshan> i used the ruler technique to set center height
[23:17:30] <zeeshan> ruler was perpendicular
[23:17:35] <zeeshan> maybe i should put it slightly below center ?
[23:17:57] <zeeshan> maybe its rubbing at the front of the insert
[23:17:59] <zeeshan> not enough clearance
[23:18:13] <Tom_itx> make a tool setting height gage
[23:18:27] <zeeshan> too much work :(
[23:18:49] <zeeshan> actualkly a question i have is
[23:18:53] <zeeshan> if its slightly below center
[23:18:56] <zeeshan> lets say 15 thou
[23:18:58] <zeeshan> is that acceptable
[23:19:12] <zeeshan> i know 15 thou above center would be bad
[23:19:18] <zeeshan> cause like you're decreasing the front clearance
[23:19:54] <andypugh> These are pretty, and quite cheap, and quite good: http://www.machine-dro.co.uk/edge-technology-speedy-lathe-gauge-4285.html
[23:19:54] <zeeshan> time to bust out cad
[23:20:15] <zeeshan> andypugh: assuming my lathe is level
[23:20:15] <zeeshan> haha
[23:20:43] <andypugh> The vial is adjustable for non-level lathes.
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[23:23:11] <Thomaxo_> MDI might be perfect for me
[23:23:36] <zeeshan> andypugh: hmm
[23:24:03] <zeeshan> okay i think i was right about this parting tool business
[23:24:07] <zeeshan> http://i.imgur.com/Mieg5tX.png
[23:24:20] <zeeshan> if its too high, it rubs
[23:24:31] <zeeshan> if its too low, theres just more clearance
[23:24:41] <zeeshan> but youre gonna leave a nub
[23:24:46] <zeeshan> Hmm
[23:24:58] <Tom_itx> not if it's right
[23:25:07] <Tom_itx> not much of one if any
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[23:25:40] <zeeshan> poor flank face
[23:25:45] <zeeshan> of my insert probably hates me
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[23:28:05] <jdh_> what's the best way to get a square end face when parting a tube on a lathe?
[23:28:45] <zeeshan> go straight in
[23:28:45] <zeeshan> :)
[23:28:55] <zeeshan> http://i.imgur.com/UxoB1D9.png
[23:28:56] <zeeshan> updated the image
[23:29:00] <zeeshan> i messed up the angle before
[23:29:40] <Tom_itx> jdh_, sharp cutoff tool for sure
[23:31:18] <Tom_itx>  /| flat toward the side you want nice
[23:32:03] <Tom_itx> generally it's |\ toward the stock
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[23:38:50] <andypugh> jdh_: One way to square a tube… https://picasaweb.google.com/108164504656404380542/CNCUnsorted?noredirect=1#5858692186241200882
[23:39:16] <andypugh> (that’s a specially made plug-centre)
[23:39:23] <zeeshan> thats one way to use your entire lathe
[23:39:23] <zeeshan> wow
[23:39:28] <zeeshan> what is that part
[23:39:36] <andypugh> It’s actually a table leg.
[23:39:40] <zeeshan> oh
[23:40:29] <Tom_itx> andypugh, does the plug have bolts to squeeze the plug inside the tube?
[23:40:43] <andypugh> No. It just fitted.
[23:41:19] <andypugh> I had a broken centre, so replaced the pount with a threaded stud. I make things to screw on as required.
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[23:43:49] <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
[23:43:50] <zeeshan> andypugh: have you dealt with creep and stress relaxation
[23:44:14] <Tom_itx> on short parts of course
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[23:48:49] <andypugh> zeeshan: Not really.
[23:48:58] <zeeshan> boo
[23:48:59] <zeeshan> :/
[23:49:06] <andypugh> I know they exist. That’s about it.
[23:49:45] <zeeshan> ive had some weird stuff going on in the lab
[23:49:45] <zeeshan> :/
[23:50:04] <andypugh> That’s why the lab exists
[23:50:35] <zeeshan> im indenting a polymer (polypropylene + polyethylene mix ) Tg < -10C
[23:50:40] <zeeshan> and smp.
[23:50:43] <zeeshan> both at room temp.
[23:50:50] <zeeshan> the smp goes back to its original shape in like 30 seconds
[23:51:09] <zeeshan> the polymer stays at the same shape even after 2 hours
[23:51:16] <zeeshan> but if i heat it to 100C, and recheck
[23:51:23] <zeeshan> its 85% to its original shape
[23:51:45] <zeeshan> not sure how the hell its remembering what its original shape was :(
[23:51:50] <zeeshan> it's not a shape memory polymer :/
[23:51:58] <andypugh> Are you sure about that?
[23:52:09] <andypugh> It seems to think it’s one.
[23:52:21] <zeeshan> yes, thats what the prof who worked on this material exclusively told me
[23:52:26] <zeeshan> its a pe pp copolymer
[23:52:34] <zeeshan> with the tg for pe at like -120c
[23:52:39] <zeeshan> and pp at -10c
[23:52:43] <Thomaxo_> you can get a 5 axis cnc with 1x1x1 meter work area for 7000 o.o
[23:52:45] <zeeshan> so im not even close to their transitioning temperatures
[23:53:05] <zeeshan> so i dont know whats going on
[23:53:09] <zeeshan> ive been stuck on this for 2 weeks
[23:53:25] <malcom2073> Thomaxo_: link?
[23:53:26] <zeeshan> to make myself feel better, im going back to regular tests like tensile, cup drawing :P
[23:53:34] <Thomaxo_> http://5axismaker.com
[23:53:44] <Thomaxo_> it seems to work with rhino + grasshopper
[23:53:52] <malcom2073> Hmm
[23:54:09] <malcom2073> Wouldn't be bad for milling out lost-foam shapes
[23:54:10] <Thomaxo_> for students that is 200euro, commercial that is 1000
[23:54:20] <Thomaxo_> true
[23:54:28] <malcom2073> I was about to bash it for being so lightweight
[23:54:32] <malcom2073> but for foam? who cares
[23:54:44] <zeeshan> lol
[23:54:47] <Thomaxo_> perfect for architecture :)
[23:54:56] <zeeshan> my problem with it is steppers :/
[23:55:00] <zeeshan> and no positional feedback
[23:55:04] <zeeshan> cant take a machine like that seriously
[23:55:07] <malcom2073> I like the idea, once open source software catches up with the CAM it'll be nice :-D
[23:55:17] <malcom2073> zeeshan: Not even for milling foam?
[23:55:37] <zeeshan> yes not even for foam
[23:55:50] <malcom2073> Are you complaining about steppers in general
[23:55:57] <malcom2073> or about the size of them in relation to that machine?
[23:56:06] <zeeshan> im complaining about not having positional feedback
[23:56:11] <malcom2073> a heh
[23:56:14] <malcom2073> my dads cnc mill doesn't seem to mind
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[23:56:35] <tiwake> you cant know when the steppers slip
[23:56:49] <zeeshan> you can with encoders
[23:56:53] <malcom2073> Nope, which is why you have to understand your machine
[23:56:54] <zeeshan> but most of these cheap setups dont do it
[23:56:58] <malcom2073> Don't push it past what it can do
[23:57:15] <zeeshan> malcom2073: i used to think like that
[23:57:22] <zeeshan> but owning the lathe w/ stepper open loop
[23:57:24] <zeeshan> my mind has changed
[23:57:46] <malcom2073> zeeshan: I still think like that, because I see it work all the time. Optimum? Possibly not, but certainly doable without issue
[23:57:49] <malcom2073> :P
[23:58:04] <malcom2073> My mill is servo, which will be interesting, but steppers are so cheap
[23:58:04] <zeeshan> for 7000 i better get feedback ! :P
[23:58:16] <malcom2073> Psh, so replace the $200 worth of electronics with servos
[23:58:36] <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
[23:58:37] <malcom2073> Or, build your own, since thatl ooks like it's only about $1k worth of hardware
[23:58:48] <Thomaxo_> definitely a step in the right direction
[23:58:56] <Thomaxo_> i mean, from useless 3d printers to this
[23:58:58] <Thomaxo_> me likey
[23:59:00] <R2E4> zeeshan, so it is acting normal and I am not reacting to that statement.....lol
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[23:59:26] <malcom2073> Thomaxo_: They have a 3d printer head for that machine, I think just for the media cred :P
[23:59:42] <Thomaxo_> heheh, true
[23:59:51] <malcom2073> Also, it's only 16" cubed