Re: [Emc-users] Status of Linux-emc and 3d printing?
On Jun 28, 2012, at 9:54 AM, Ed Nisley wrote: On Thu, 2012-06-28 at 10:50 -0400, John Stewart wrote: I don't remember being that impressed with their x/y speeds They tend to produce better results below 30 mm/s, mostly because the stock firmware doesn't use any acceleration limiting at all, and I've seen some down around 10 mm/s near my Sherline's limit. Using firmware that applies acceleration limiting helps with the non-printing moves, but the plywood-and-acrylic frame isn't rigid enough to print accurately much above 40 mm/s. The dreadfully heavy custom build platform in my TOM requires a rather low acceleration, but even the stock platform isn't a real featherweight… I understand that the Ultimaker is currently the fastest (possibly highest quality too) hobby plastic extruder readily available. I think I recall reading that printing up to 400mm/s has been achieved, but 200-300mm/s is more realistic. Here is the Sprinter firmware: http://www.youtube.com/watch?v=bIBuUfd4cwY Here it is printing at 300 mm/s: http://www.youtube.com/watch?v=t5SoEdRzKlA From the Sprinter firmware page: • The slow corresponds to the current default setting of sprinter, with an acceleration of 7000mm/sec^2, corresponding to an acceleration time of 14ms and a distance of 0.7mm to 100mm/sec. So, 0.25mm moves will never reach full speed. • The fast acceleration was 70 mm/sec^2=acc. time of 0.14ms and a distance of 0.007mm. So basically, there is hardly any acceleration. I understand that it can print much faster than the Makerbots because the print head weighs much less (the Makerbot shleps 2 stepper motors around, the Ultimaker 0 stepper motors). I wonder how much faster one could be with servos instead of stepper motors. Also, the Ultimaker has considerably higher resolution. If I were to buy a standalone unit (and I am seriously tempted) I think I would go with the Ultimaker (larger print volume too). Best, Jeshua Lacock Founder/Engineer 3DTOPO Incorporated http://3DTOPO.com Phone: 208.462.4171 -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Status of Linux-emc and 3d printing?
On Fri, 2012-06-29 at 00:59 -0600, Jeshua Lacock wrote: Ultimaker is currently the fastest (possibly highest quality too) hobby plastic extruder The Bowden extruder notion seems to have more trouble with ooze: half a meter of filament beyond the drive wheel prevents fast retraction. Reducing the extruder mass certainly improves the speed, at least given the usual under-powered and over-loaded stepper drives... [grin] -- Ed http://softsolder.com -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Status of Linux-emc and 3d printing?
Jeshua Lacock wrote: On Jun 29, 2012, at 12:59 AM, Jeshua Lacock wrote: Here it is printing at 300 mm/s: http://www.youtube.com/watch?v=t5SoEdRzKlA Still looks like 25 seconds/layer or thereabouts. Certainly a big improvement over earlier designs, though. Jon -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Status of Linux-emc and 3d printing?
On Jun 29, 2012, at 8:03 AM, Ed Nisley wrote: On Fri, 2012-06-29 at 00:59 -0600, Jeshua Lacock wrote: Ultimaker is currently the fastest (possibly highest quality too) hobby plastic extruder The Bowden extruder notion seems to have more trouble with ooze: half a meter of filament beyond the drive wheel prevents fast retraction. Yeah, I have heard that, but I think the proof is in the pudding, and from what I have seen Ultimaker produces superior results compared to its competitors. Personally, I wouldn't mind cleaning up some strings to get faster/better quality results if I had to. Reducing the extruder mass certainly improves the speed, at least given the usual under-powered and over-loaded stepper drives... [grin] Indeed, like I said, I would love to see what some proper servos could do. ;) Cheers, Jeshua Lacock Founder/Engineer 3DTOPO Incorporated http://3DTOPO.com Phone: 208.462.4171 -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Status of Linux-emc and 3d printing?
Ed; The fundamental problem with a RepStrap made from a typical milling machine is speed: my rather customized Thing-O-Matic prints reasonably well at 30 mm/s and makes rapid motions at 250 mm/s. Interesting comment - my KX1 config is not with me, but as it has a Gecko G540 and runs 48v turned down a bit, it can move faster than some. I have seen at least a dozen Thing-o-matics and the older cupcakes running (plus a bunch of high priced 3d printers) and I don't remember being that impressed with their x/y speeds, but I was not focused on details like that, then. I think I'll just order a Reprap kit, and leave my Linux-CNC stuff to one side for now, and learn the rep rap route for now. Thanks; John A. Stewart. -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Status of Linux-emc and 3d printing?
I regularly run my Thing-O-Matic at 120 mm/sec while feeding (I can do 160 but the quality suffers), and travel at up to 200 mm/sec. Most older ToM's and cupcakes ran at 30 mm/sec, since the earlier firmware did not use acceleration, leading to missed steps at higher speeds. On Thu, Jun 28, 2012 at 7:50 AM, John Stewart alex.stew...@crc.ca wrote: Ed; The fundamental problem with a RepStrap made from a typical milling machine is speed: my rather customized Thing-O-Matic prints reasonably well at 30 mm/s and makes rapid motions at 250 mm/s. Interesting comment - my KX1 config is not with me, but as it has a Gecko G540 and runs 48v turned down a bit, it can move faster than some. I have seen at least a dozen Thing-o-matics and the older cupcakes running (plus a bunch of high priced 3d printers) and I don't remember being that impressed with their x/y speeds, but I was not focused on details like that, then. I think I'll just order a Reprap kit, and leave my Linux-CNC stuff to one side for now, and learn the rep rap route for now. Thanks; John A. Stewart. -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Status of Linux-emc and 3d printing?
On Thu, 2012-06-28 at 10:50 -0400, John Stewart wrote: I don't remember being that impressed with their x/y speeds They tend to produce better results below 30 mm/s, mostly because the stock firmware doesn't use any acceleration limiting at all, and I've seen some down around 10 mm/s near my Sherline's limit. Using firmware that applies acceleration limiting helps with the non-printing moves, but the plywood-and-acrylic frame isn't rigid enough to print accurately much above 40 mm/s. The dreadfully heavy custom build platform in my TOM requires a rather low acceleration, but even the stock platform isn't a real featherweight... -- Ed http://softsolder.com -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Status of Linux-emc and 3d printing?
On Wed, 2012-06-27 at 21:20 -0400, Stephen Dubovsky wrote: his X3 sized mill does 300ipm That certainly puts it in the running! What are the acceleration rates on the dedicated machines? Given my heavy custom build platform and 12 V stepper supplies, the accelerations aren't all that spectacular: X = 15 k mm/s^2 and Y = 5 k mm/s^2. The Z axis uses the stock motor, which isn't well suited for microstepping drive, and runs at 1000 mm/s^2. My Sherline runs X and Y at a sleepy 5 in/s^2 = 125 mm/s^2 and Z at 3 in/s^2 = 75 mm/s^2... -- Ed http://softsolder.com -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Status of Linux-emc and 3d printing?
Hi all; Noted lots of interest in 3D printing, and have saved the emails. I do find it a bit confusing, (RAMPS, Mendel, other new words) and am wondering if anyone is working on a web page to provide a put an extruder in the spindle, and 3D print web page for Linux-EMC? I keep thinking about pushing the buy button for a RepRap kit of parts, but as I have a perfectly good CNC mill sitting around… --- John A. Stewart alex.stew...@crc.ca -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Status of Linux-emc and 3d printing?
I think the point is that there should be a wiki page started to collect all the info needed to easily bolt a plastic extruder to a 3-axis CNC machine do 3d printing. I've played with this a bit a few months ago, and hope to get back to it this summer. I'd be happy to contribute content to the wiki page once I have something going. At least collecting links to the several documented builds using linuxcnc would be helpful. -- Ralph From: doug metzler [doug.metz...@gmail.com] Sent: Wednesday, June 27, 2012 9:55 AM To: Enhanced Machine Controller (EMC) Subject: Re: [Emc-users] Status of Linux-emc and 3d printing? Why would anyone who owns a mill buy a reprap kit? With your knowledge of linear motion you could build a far superior machine in an afternoon :-) DougM On Wed, Jun 27, 2012 at 9:17 AM, John Stewart alex.stew...@crc.ca wrote: Hi all; Noted lots of interest in 3D printing, and have saved the emails. I do find it a bit confusing, (RAMPS, Mendel, other new words) and am wondering if anyone is working on a web page to provide a put an extruder in the spindle, and 3D print web page for Linux-EMC? I keep thinking about pushing the buy button for a RepRap kit of parts, but as I have a perfectly good CNC mill sitting around… --- John A. Stewart alex.stew...@crc.ca -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Status of Linux-emc and 3d printing?
On Wednesday 27 June 2012 14:04:15 John Stewart did opine: Hi all; Noted lots of interest in 3D printing, and have saved the emails. I do find it a bit confusing, (RAMPS, Mendel, other new words) and am wondering if anyone is working on a web page to provide a put an extruder in the spindle, and 3D print web page for Linux-EMC? I keep thinking about pushing the buy button for a RepRap kit of parts, but as I have a perfectly good CNC mill sitting around… --- John A. Stewart alex.stew...@crc.ca I think I want to add an ... to that myself. Somewhat more complex than EDM which I have done, but ... Cheers, Gene -- There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order. -Ed Howdershelt (Author) My web page: http://coyoteden.dyndns-free.com:85/gene Today is the tomorrow you worried about yesterday. -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Status of Linux-emc and 3d printing?
There is a page buried in their wiki: http://reprap.org/wiki/EMCRepRap The 'EMC' and 'EMC2' are dead ends. I don't think it has been updated much lately. I have been very guilty of not adding my knowledge to that page, but I know I won't be getting around to it for weeks. Alex On Wed, Jun 27, 2012 at 12:37 PM, Ralph Stirling ralph.stirl...@wallawalla.edu wrote: I think the point is that there should be a wiki page started to collect all the info needed to easily bolt a plastic extruder to a 3-axis CNC machine do 3d printing. I've played with this a bit a few months ago, and hope to get back to it this summer. I'd be happy to contribute content to the wiki page once I have something going. At least collecting links to the several documented builds using linuxcnc would be helpful. -- Ralph From: doug metzler [doug.metz...@gmail.com] Sent: Wednesday, June 27, 2012 9:55 AM To: Enhanced Machine Controller (EMC) Subject: Re: [Emc-users] Status of Linux-emc and 3d printing? Why would anyone who owns a mill buy a reprap kit? With your knowledge of linear motion you could build a far superior machine in an afternoon :-) DougM On Wed, Jun 27, 2012 at 9:17 AM, John Stewart alex.stew...@crc.ca wrote: Hi all; Noted lots of interest in 3D printing, and have saved the emails. I do find it a bit confusing, (RAMPS, Mendel, other new words) and am wondering if anyone is working on a web page to provide a put an extruder in the spindle, and 3D print web page for Linux-EMC? I keep thinking about pushing the buy button for a RepRap kit of parts, but as I have a perfectly good CNC mill sitting around… --- John A. Stewart alex.stew...@crc.ca -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Status of Linux-emc and 3d printing?
On Wednesday 27 June 2012 14:04:15 John Stewart did opine: Hi all; Noted lots of interest in 3D printing, and have saved the emails. Michael Joyce just completed a kickstarter project for a 3D printer, he got $510,000 in one month. He now has to deliver about 180 systems. This is the b9creator project. A lot of discussion of this type machine has been going on on the Yahoo group : diy_3d_printing_and_fabricat...@yahoogroups.com The basic idea is a vat of photosensitive resin and a build platform that raises above the vat. A DLP-type computer projector shines through the bottom of the vat to expose a layer at a time, which is made planar by the vat bottom. A guy in Spain is providing relatively inexpensive resins. Software has been modified from the standard reprap software preview mode. The last problems that Michael solved was preventing the model from sticking to the vat bottom (a clear silicone similar to RTV was used) and preventing a suction cup effect (his scheme is to have a plateau of the silicone for the build area and slide the model sideways to a lower area of the floor to prevent suction.) The advantage of this machine is it exposes an entire layer in parallel, and has about an 8-10 second cycle time, regardless of layer complexity. Pixels of 50 - 100 um are typical, and layer thicknesses of 20 - 50 um are what they are using, I think. Pretty much all the details have been hashed out on that group. Jon -- Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
