Messages

21

General Mach Discussion / Re: What motor size and driver should I use

« on: November 19, 2009, 03:11:21 PM »

Thanks for the replys so far.
I was planning to avoid the knee and have Z on the Quill.

I have already got on order 5mm pitch ballscrews which is 0.2 inch

If I were to go servo instead what size and type of motor would work

22

General Mach Discussion / Re: What motor size and driver should I use

« on: November 19, 2009, 03:01:17 PM »

The mill is a cincinati toolmaster, the same size as a basic bridgeport.  4foot by 10" table approx,  travel about 18"  by 10",   Quill about 4" travel.

Motor at present is 1.5HP 1000rpm with 8 speeds via pullys, driven by an inverter drive.

23

General Mach Discussion / What motor size and driver should I use

« on: November 19, 2009, 05:20:48 AM »

 
Hi al.
Im trying to retro fit a bridgeport sized vertical miller
My leadscrews will be 5mm pitch ball screws
I am not looking for very high speeds, just home shop use and reliable / acurate

What sized stepper motors should I aim for (I think I would prefer to go steppers rather than servo)

What would be a decent driver size to use

Are any of the multi axis boards, max seems to be 3amp per axis, worth considdering.

Thanks for any advice

John

24

General Mach Discussion / Motor and driver problems. Please HELP

« on: November 16, 2009, 01:46:20 PM »

Hi all.
I am new to the forum and Mach3

I have some serious problems trying to get my stepper motors to run properly.

I will try to give a full description of the setup and issues.

Drive 1
IMS IB106.   24v - 80v,  1 - 6 amps,  Full or 1/2 step.
I have 3 of these and they are new.

Drive 2
Superior electric, Slo-Syn, SS2000MD7,  24v - 75v,  1 -7amps,  2 - 100 resolution.
Supposed to be new but I have doubts.

Motor 1
Astrosyn,  L281,  3v, 1.7 amp, 15Kg cm,  Hybrid
I have 2 of these new

Motor 2
Pacific Scientific, Powermax, P22RXA LDS NS 02,  2.7v,  4.6amp, unipolar.
I have 2 of these used.

Motor 3
SuperiorElectric, Slo-Syn, M112 FJ 319B (same as8018 I think) 2.1v, 9.2amp,  840 oz in
Just the one, used

I am at the initial bench testing stage, and seem to be stuck. I hope to be fitting the system to a bridgeport sized mill when compleet.

All 3 IMS drives seem to work perfectly with the Astrosyn motors, forward,back,fast,slow. Power Supply is 48v DC unregulated, approx 30amp capacity.

When I connect the other motors I get the same effect every time. The motors try to run but verry eratic and noisy, they do try to go forwards and back but always verry rough.  I have tried all the diferent wiring methods to no success.

The Slo-Syn drive will not work with any of the motors, they all try to run but again verry rough.

Sorry it such a long post but I thought it best to try and give a full picture

Any help gladly recived

John