Re: [Emc-users] plea for help tuning a servo system in Ann Arbor area

2011-10-21 Thread noel
Servo Tuning Resource: http://support.motioneng.com/Downloads-Notes/Tuning/default.htm good luck. Noel. Roguish -Original Message- From: Tom Easterday [mailto:tom-...@bgp.nu] Sent: Tuesday, October 18, 2011 5:20 PM To: Enhanced Machine Controller (EMC) Subject: [Emc-users] plea for

Re: [Emc-users] plea for help tuning a servo system in Ann Arbor area

2011-10-20 Thread John Thornton
On my Hypertherm 1250 plasma table cut charts I don't see any cut speeds higher than 500IPM. John On 10/19/2011 10:22 PM, Tom Easterday wrote: We are mainly going to be using a plasma torch so may be cutting at 200-1000 ipm (will be based on material and I haven't researched actual rates -

Re: [Emc-users] plea for help tuning a servo system in Ann Arbor area

2011-10-20 Thread Dave
For those who are not familiar with the Hypertherm 1250, that plasma cutter is a beast. I used one on a production machine cutting large diameter coil springs. It is very impressive. John, is there an EMC2 demo configuration using the Mesa THC board anywhere? I thought there used to be one

Re: [Emc-users] plea for help tuning a servo system in Ann Arbor area

2011-10-20 Thread Dave
John, is there an EMC2 demo configuration using the Mesa THC board anywhere? I thought there used to be one in the Master?, but now I don't see it. Forget this request.It was right in front of me named Plasma-5i20. Dave On 10/20/2011 11:49 AM, Dave wrote: For those who are not familiar

Re: [Emc-users] plea for help tuning a servo system in Ann Arbor area

2011-10-20 Thread John Thornton
Dave, The plasma-5i20 config shows both using a 5i20 and the THCAD card and is in 2.5 so it should be in master too... yep seems to be there too. John On 10/20/2011 10:49 AM, Dave wrote: For those who are not familiar with the Hypertherm 1250, that plasma cutter is a beast. I used one on a

Re: [Emc-users] plea for help tuning a servo system in Ann Arbor area

2011-10-20 Thread John Thornton
Ok, nevermind my last reply... John On 10/20/2011 11:33 AM, Dave wrote: John, is there an EMC2 demo configuration using the Mesa THC board anywhere? I thought there used to be one in the Master?, but now I don't see it. Forget this request.It was right in front of me named Plasma-5i20.

Re: [Emc-users] plea for help tuning a servo system in Ann Arbor area

2011-10-20 Thread Dave
Thanks for looking anyway. :-) My mistake. Dave On 10/20/2011 2:17 PM, John Thornton wrote: Ok, nevermind my last reply... John On 10/20/2011 11:33 AM, Dave wrote: John, is there an EMC2 demo configuration using the Mesa THC board anywhere? I thought there used to be

Re: [Emc-users] plea for help tuning a servo system in Ann Arbor area

2011-10-20 Thread Jim Coleman
At my employer, cutting with a 200A plasma torch running liquid oxygen, we don't cut faster than 160 IPM or so. This is cutting mild steel from .060 to 1. I'm usually the shear / brake press guy, but I've ran the burn table a number of times. I've wondered if our cutting rates are ideal, but

Re: [Emc-users] plea for help tuning a servo system in Ann Arbor area

2011-10-19 Thread Tom Easterday
On Oct 19, 2011, at 12:47 AM, Dave wrote: Tom, If you try that software and get stuck, drop me a private email. I go through Ann Arbor once in a while. I'm northeast of Fort Wayne, IN. I'm very familiar with Ann Arbor. I grew up in Plymouth, MI and still have family in the area.

Re: [Emc-users] plea for help tuning a servo system in Ann Arbor area

2011-10-19 Thread Tom Easterday
On Oct 19, 2011, at 12:25 AM, Jon Elson wrote: On 10/18/2011 9:34 PM, Tom Easterday wrote: We think the motors are a good size for what we designed. They might be a little too big if anything This might be part of the problem we are having tuning it, that the truck is fairly light

Re: [Emc-users] plea for help tuning a servo system in Ann Arbor area

2011-10-19 Thread Tom Easterday
On Oct 19, 2011, at 11:22 PM, Tom Easterday wrote: The gantry is actually fairly light. It is two pieces of extruded aluminum held together with some aluminum cast parts from CastCNC (see attached pic). http://bgp.nu/~tom/pub/castcnc.jpg

Re: [Emc-users] plea for help tuning a servo system in Ann Arbor area

2011-10-19 Thread Dave
On 10/19/2011 11:10 PM, Tom Easterday wrote: On Oct 19, 2011, at 12:47 AM, Dave wrote: Tom, If you try that software and get stuck, drop me a private email. I go through Ann Arbor once in a while. I'm northeast of Fort Wayne, IN. I'm very familiar with Ann Arbor. I grew up in

[Emc-users] plea for help tuning a servo system in Ann Arbor area

2011-10-18 Thread Tom Easterday
Is anyone in or around the Ann Arbor area that has tuned servo systems before that would be willing to lend their expertise? -Tom -- All the data continuously generated in your IT infrastructure contains a definitive

Re: [Emc-users] plea for help tuning a servo system in Ann Arbor area

2011-10-18 Thread sam sokolik
Could you explain your system a little. When you where explaining it on irc - It seemed to me that you had a bit too small of servos for the application you had. iirc - you have about 1.5 turns of the servo per inch? or was it 2.5 turns per inch? Again - It was just a feeling. sam On

Re: [Emc-users] plea for help tuning a servo system in Ann Arbor area

2011-10-18 Thread Tom Easterday
On Oct 18, 2011, at 9:06 PM, sam sokolik wrote: Could you explain your system a little. When you where explaining it on irc - It seemed to me that you had a bit too small of servos for the application you had. iirc - you have about 1.5 turns of the servo per inch? or was it 2.5 turns per

Re: [Emc-users] plea for help tuning a servo system in Ann Arbor area

2011-10-18 Thread Dave
On 10/18/2011 9:34 PM, Tom Easterday wrote: On Oct 18, 2011, at 9:06 PM, sam sokolik wrote: Could you explain your system a little. When you where explaining it on irc - It seemed to me that you had a bit too small of servos for the application you had. iirc - you have about 1.5 turns

Re: [Emc-users] plea for help tuning a servo system in Ann Arbor area

2011-10-18 Thread Jon Elson
On 10/18/2011 9:34 PM, Tom Easterday wrote: We think the motors are a good size for what we designed. They might be a little too big if anything This might be part of the problem we are having tuning it, that the truck is fairly light and motor fairly beefy. One turn of the motor

Re: [Emc-users] plea for help tuning a servo system in Ann Arbor area

2011-10-18 Thread Dave
On 10/18/2011 9:57 PM, Dave wrote: On 10/18/2011 9:34 PM, Tom Easterday wrote: On Oct 18, 2011, at 9:06 PM, sam sokolik wrote: Could you explain your system a little. When you where explaining it on irc - It seemed to me that you had a bit too small of servos for the application