[Emc-users] New Reprap name.

2013-12-10 Thread andy pugh
http://www.reprappro.com/new-electronics-new-reprap-new-distributor/ Apparently named after an entomologist. But the mechanism is very similar to: http://www.lathes.co.uk/ormerodhandshaper/ More than coincidence? -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto

Re: [Emc-users] Acra CNC refit progress.

2013-12-10 Thread andy pugh
On 10 December 2013 05:32, Gregg Eshelman g_ala...@yahoo.com wrote: A very nice surprise was the lot included a Kennametal Erickson quick change spindle from a Bridgeport. The guy had swapped it for an R8 spindle That's just perverse! -- atp If you can't fix it, you don't own it.

Re: [Emc-users] New Reprap name.

2013-12-10 Thread Kirk Wallace
On 12/10/2013 03:05 AM, andy pugh wrote: http://www.reprappro.com/new-electronics-new-reprap-new-distributor/ Apparently named after an entomologist. But the mechanism is very similar to: http://www.lathes.co.uk/ormerodhandshaper/ More than coincidence? In thinking about a better RepRap I

Re: [Emc-users] Delon Doubler

2013-12-10 Thread andy pugh
On 21 October 2013 18:21, Les Newell les.new...@fastmail.co.uk wrote: A trick to get around this is to use a 24V transformer to buck the mains down to 216V. Add the voltage doubler after that and your DC is spot on. You seem to understand transforners :-) I am wondering what I can do with this

Re: [Emc-users] Acra CNC refit progress.

2013-12-10 Thread Dave Cole
On 12/10/2013 6:16 AM, andy pugh wrote: On 10 December 2013 05:32, Gregg Eshelman g_ala...@yahoo.com wrote: A very nice surprise was the lot included a Kennametal Erickson quick change spindle from a Bridgeport. The guy had swapped it for an R8 spindle That's just perverse! I'd go a bit

Re: [Emc-users] Delon Doubler

2013-12-10 Thread Dave Cole
On 12/10/2013 11:58 AM, andy pugh wrote: On 21 October 2013 18:21, Les Newell les.new...@fastmail.co.uk wrote: A trick to get around this is to use a 24V transformer to buck the mains down to 216V. Add the voltage doubler after that and your DC is spot on. You seem to understand transforners

Re: [Emc-users] New Reprap name.

2013-12-10 Thread Tim Voght
On 12/10/2013 11:11 AM, Kirk Wallace wrote: On 12/10/2013 03:05 AM, andy pugh wrote: http://www.reprappro.com/new-electronics-new-reprap-new-distributor/ Apparently named after an entomologist. But the mechanism is very similar to: http://www.lathes.co.uk/ormerodhandshaper/ More than

Re: [Emc-users] Acra CNC refit progress.

2013-12-10 Thread Stephen Dubovsky
Im not sure I'd go that far (and Im an owner of both). NMTB/QC30 has positive drive but a R8 power drawbar absolutely whoops QC30 in tool change speed ease. Push button vs having to yank on a wrench both in and out. Its not really an improvement. SMD On Tue, Dec 10, 2013 at 12:10 PM, Dave

Re: [Emc-users] Acra CNC refit progress.

2013-12-10 Thread andy pugh
On 10 December 2013 17:56, Stephen Dubovsky smdubov...@gmail.com wrote: Im not sure I'd go that far (and Im an owner of both). NMTB/QC30 has positive drive but a R8 power drawbar absolutely whoops QC30 in tool change speed ease. How long does it take to lower the table far enough to extract

Re: [Emc-users] Acra CNC refit progress.

2013-12-10 Thread tcninja12
well it might be faster for one tool jobs but 5 or 6 tools already touched off might make the qc a better choice Terry On Dec 10, 2013, at 11:56 AM, Stephen Dubovsky smdubov...@gmail.com wrote: Im not sure I'd go that far (and Im an owner of both). NMTB/QC30 has positive drive but a R8

Re: [Emc-users] Acra CNC refit progress.

2013-12-10 Thread Dave Cole
I've got an Erickson QC30 on my Bridgeport CNC mill. R8 does not maintain any accurate Z reference after a tool change. So while you can change tools quickly, how much time does re-referencing the Z axis use on repetitive parts? Dave On 12/10/2013 12:56 PM, Stephen Dubovsky wrote: Im not sure

Re: [Emc-users] New Reprap name.

2013-12-10 Thread Dave Cole
On 12/10/2013 12:42 PM, Tim Voght wrote: On 12/10/2013 11:11 AM, Kirk Wallace wrote: On 12/10/2013 03:05 AM, andy pugh wrote: http://www.reprappro.com/new-electronics-new-reprap-new-distributor/ Apparently named after an entomologist. But the mechanism is very similar to:

Re: [Emc-users] Acra CNC refit progress.

2013-12-10 Thread Kirk Wallace
On 12/10/2013 10:50 AM, Dave Cole wrote: I've got an Erickson QC30 on my Bridgeport CNC mill. R8 does not maintain any accurate Z reference after a tool change. So while you can change tools quickly, how much time does re-referencing the Z axis use on repetitive parts? Dave On 12/10/2013

Re: [Emc-users] Delon Doubler

2013-12-10 Thread Gene Heskett
On Tuesday 10 December 2013 14:55:24 andy pugh did opine: On 21 October 2013 18:21, Les Newell les.new...@fastmail.co.uk wrote: A trick to get around this is to use a 24V transformer to buck the mains down to 216V. Add the voltage doubler after that and your DC is spot on. You seem to

Re: [Emc-users] Delon Doubler

2013-12-10 Thread Gene Heskett
On Tuesday 10 December 2013 15:19:27 Dave Cole did opine: On 12/10/2013 11:58 AM, andy pugh wrote: On 21 October 2013 18:21, Les Newell les.new...@fastmail.co.uk wrote: A trick to get around this is to use a 24V transformer to buck the mains down to 216V. Add the voltage doubler after that

Re: [Emc-users] Acra CNC refit progress.

2013-12-10 Thread andy pugh
On 10 December 2013 20:13, Kirk Wallace kwall...@wallacecompany.com wrote: I would, given a large budget, prefer 30 or 40 taper with a power draw bar. My power draw-bar cost me £40, and half of that was because I decided to anodise the parts. (My mill was 30 INT as delivered, and is now using

Re: [Emc-users] Acra CNC refit progress.

2013-12-10 Thread Gene Heskett
On Tuesday 10 December 2013 15:55:29 andy pugh did opine: On 10 December 2013 20:13, Kirk Wallace kwall...@wallacecompany.com wrote: I would, given a large budget, prefer 30 or 40 taper with a power draw bar. My power draw-bar cost me £40, and half of that was because I decided to

Re: [Emc-users] Four cable CNC with LCNC. Someone finally did it.

2013-12-10 Thread Florian Rist
Hi Viesturs Paused at 0:57 and I see 7 ropes. Right, I didn't notice this. Maybe the plan was to have 8 but one of the drives died. :-) And at 3:17 I certainly do no understand, what kind of g-code is that, it seems to use G01 and G02, but the axis words seem strange. Indeed, looks

Re: [Emc-users] Delon Doubler

2013-12-10 Thread Dave Cole
On 12/10/2013 3:18 PM, Gene Heskett wrote: On Tuesday 10 December 2013 14:55:24 andy pugh did opine: On 21 October 2013 18:21, Les Newell les.new...@fastmail.co.uk wrote: A trick to get around this is to use a 24V transformer to buck the mains down to 216V. Add the voltage doubler after that

Re: [Emc-users] Acra CNC refit progress.

2013-12-10 Thread Stephen Dubovsky
On Tue, Dec 10, 2013 at 1:50 PM, Dave Cole linuxcncro...@gmail.com wrote: I've got an Erickson QC30 on my Bridgeport CNC mill. R8 does not maintain any accurate Z reference after a tool change. Why? R8 uses a taper angle of 16.85deg. NMTB/QC30 uses 16.5943deg [both from wikipedia]. Both of

Re: [Emc-users] C2000 vfd + AC inductor motor + LinuxCNC

2013-12-10 Thread Leonardo Marsaglia
Well. I have some good news at leat based on my experience tuning servos. I mounted the motor and now is working moving the screw (this is a SAE 1045 steel screw with a nut made out of nylon 6). Doing a quick tuning today I got a 0.2 mm of error and the oscillation stoped when the joint reached

Re: [Emc-users] Delon Doubler

2013-12-10 Thread Gene Heskett
On Tuesday 10 December 2013 17:28:10 Dave Cole did opine: On 12/10/2013 3:18 PM, Gene Heskett wrote: On Tuesday 10 December 2013 14:55:24 andy pugh did opine: On 21 October 2013 18:21, Les Newell les.new...@fastmail.co.uk wrote: A trick to get around this is to use a 24V transformer to

Re: [Emc-users] Acra CNC refit progress.

2013-12-10 Thread ed
tcninj...@yahoo.com wrote: well it might be faster for one tool jobs but 5 or 6 tools already touched off might make the qc a better choice Terry I have a 200 Kwik Switch on my Wells Index, would not trade it for any amount of R8. Like the cat series it is a lot shorter for tool

Re: [Emc-users] Acra CNC refit progress.

2013-12-10 Thread ed
Stephen Dubovsky wrote: On Tue, Dec 10, 2013 at 1:50 PM, Dave Cole linuxcncro...@gmail.com wrote: Why? R8 uses a taper angle of 16.85deg. NMTB/QC30 uses 16.5943deg [both from wikipedia]. Both of them the taper face is the gauge line (they don't seat on a flat face or anything.) Both

Re: [Emc-users] Acra CNC refit progress.

2013-12-10 Thread Dave Cole
On 12/10/2013 4:55 PM, Stephen Dubovsky wrote: On Tue, Dec 10, 2013 at 1:50 PM, Dave Cole linuxcncro...@gmail.com wrote: I've got an Erickson QC30 on my Bridgeport CNC mill. R8 does not maintain any accurate Z reference after a tool change. Why? R8 uses a taper angle of 16.85deg. NMTB/QC30

Re: [Emc-users] Acra CNC refit progress.

2013-12-10 Thread Gregg Eshelman
On Tue, 12/10/13, Kirk Wallace kwall...@wallacecompany.com wrote: My random thoughts. I have just started using the R8/Tormach toolholding system and find it far more convenient than plain R8. Changes are as fast as grab a wrench, loosen draw bar enough to slide tool holder out, put next

Re: [Emc-users] Acra CNC refit progress.

2013-12-10 Thread Gregg Eshelman
On Tue, 12/10/13, Gene Heskett ghesk...@wdtv.com wrote: Agreed Andy, my MT2 is a PIMA. And hell on spindle bearings since you have to seriously beat the drawbolt to loosen it. Cheers, Gene -- That's why I use a ball joint separator (AKA pickle fork) on my little Chinese drill/mill.

Re: [Emc-users] Acra CNC refit progress.

2013-12-10 Thread Gregg Eshelman
On Tue, 12/10/13, Stephen Dubovsky smdubov...@gmail.com wrote: Subject: Re: [Emc-users] Acra CNC refit progress. To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Date: Tuesday, December 10, 2013, 2:55 PM On Tue, Dec 10, 2013 at 1:50 PM, Dave Cole

Re: [Emc-users] Acra CNC refit progress.

2013-12-10 Thread Gene Heskett
On Tuesday 10 December 2013 20:13:46 Gregg Eshelman did opine: On Tue, 12/10/13, Gene Heskett ghesk...@wdtv.com wrote: Agreed Andy, my MT2 is a PIMA. And hell on spindle bearings since you have to seriously beat the drawbolt to loosen it. Cheers, Gene That's why I use a ball joint

Re: [Emc-users] Acra CNC refit progress.

2013-12-10 Thread Kirk Wallace
On 12/10/2013 12:28 PM, andy pugh wrote: On 10 December 2013 20:13, Kirk Wallace kwall...@wallacecompany.com wrote: I would, given a large budget, prefer 30 or 40 taper with a power draw bar. My power draw-bar cost me £40, and half of that was because I decided to anodise the parts. (My

Re: [Emc-users] Acra CNC refit progress.

2013-12-10 Thread Jon Elson
On 12/10/2013 12:50 PM, Dave Cole wrote: I've got an Erickson QC30 on my Bridgeport CNC mill. R8 does not maintain any accurate Z reference after a tool change. So while you can change tools quickly, how much time does re-referencing the Z axis use on repetitive parts? Why do you say that?

Re: [Emc-users] Acra CNC refit progress.

2013-12-10 Thread tcninja12
This discussion reminded me That I have one of these if someone wants to try it http://i1028.photobucket.com/albums/y342/tcninja12/Mobile%20Uploads/image_zps00648bad.jpg On Dec 10, 2013, at 7:20 PM, Kirk Wallace kwall...@wallacecompany.com wrote: On 12/10/2013 12:28 PM, andy pugh wrote: On 10

Re: [Emc-users] Acra CNC refit progress.

2013-12-10 Thread Kirk Wallace
On 12/10/2013 07:21 PM, Jon Elson wrote: On 12/10/2013 12:50 PM, Dave Cole wrote: I've got an Erickson QC30 on my Bridgeport CNC mill. R8 does not maintain any accurate Z reference after a tool change. So while you can change tools quickly, how much time does re-referencing the Z axis use on

Re: [Emc-users] Acra CNC refit progress.

2013-12-10 Thread Dave Cole
On 12/10/2013 10:21 PM, Jon Elson wrote: On 12/10/2013 12:50 PM, Dave Cole wrote: I've got an Erickson QC30 on my Bridgeport CNC mill. R8 does not maintain any accurate Z reference after a tool change. So while you can change tools quickly, how much time does re-referencing the Z axis use on

Re: [Emc-users] Acra CNC refit progress.

2013-12-10 Thread Gregg Eshelman
On 12/10/2013 8:46 PM, tcninj...@yahoo.com wrote: This discussion reminded me That I have one of these if someone wants to try it http://i1028.photobucket.com/albums/y342/tcninja12/Mobile%20Uploads/image_zps00648bad.jpg What is the taper on those holders?