MechMate CNC Router Forum

Go Back   MechMate CNC Router Forum > Search Forums
Register Options Profile Last 1 | 3 | 7 Days Search Today's Posts Mark Forums Read

Showing results 1 to 9 of 9
Search took 0.00 seconds.
Search: Posts Made By: bradm
Forum: MechMates already cutting Mon 27 October 2014, 19:00
Replies: 984
Views: 185,025
Posted By bradm
Thanks, Pete. Pleasure to have you here.

Thanks, Pete. Pleasure to have you here.
Forum: MechMates already cutting Tue 26 March 2013, 17:54
Replies: 984
Views: 185,025
Posted By bradm
I'm not up around 180; that's Sean. Local...

I'm not up around 180; that's Sean. Local effects like ambient temperature, drafts, and how much heat sinking you are getting off those huge belt reductions mean that your results will likely...
Forum: MechMates already cutting Tue 26 March 2013, 17:24
Replies: 984
Views: 185,025
Posted By bradm
You may or may not have to lower the drive...

You may or may not have to lower the drive current, but if you aren't comfortable with your motor temperatures, then the current is how to adjust. You could also consider running the PK296-F4.5s as...
Forum: MechMates already cutting Tue 26 March 2013, 08:31
Replies: 984
Views: 185,025
Posted By bradm
That certainly seems like a consensus up there. ...

That certainly seems like a consensus up there.

I think it's worth noting that the PK296A2A-SG7.2 is kinda a weird animal as NEMA 34 steppers go. It's the small end of the family, and was...
Forum: MechMates already cutting Mon 25 March 2013, 20:41
Replies: 984
Views: 185,025
Posted By bradm
Wait, those are from PK296A2A-SG7.2's originally,...

Wait, those are from PK296A2A-SG7.2's originally, right?

Those are exactly what I'm driving (unmodified) from my G540. I started off running them around 35 VDC, but ended up stepping them up to...
Forum: MechMates already cutting Sun 24 March 2013, 13:03
Replies: 984
Views: 185,025
Posted By bradm
So, Pete, I think you're trying to isolate...

So, Pete, I think you're trying to isolate whether you're looking at a pure software bug, or a condition where the software happens to be consistently requesting more torque than the motors can...
Forum: MechMates already cutting Tue 19 March 2013, 11:24
Replies: 984
Views: 185,025
Posted By bradm
Two thoughts: with greater Accel, you may be...

Two thoughts: with greater Accel, you may be passing through a portion of the torque curve that has problems more quickly. Also, you might try metering your power supply to see if there is a dip...
Forum: MechMates already cutting Thu 03 November 2011, 20:32
Replies: 984
Views: 185,025
Posted By bradm
Oh, we understand and appreciate engineering...

Oh, we understand and appreciate engineering curiosity around here. Check this out (http://www.ducttapeeng.com/smd/smd1.htm) for a photographic stepper teardown. Note the ridges on both the stator...
Forum: MechMates already cutting Tue 01 November 2011, 17:23
Replies: 984
Views: 185,025
Posted By bradm
Just don't disassemble a modern stepper motor...

Just don't disassemble a modern stepper motor that you want to use again; you'll ruin it. (http://www.cnczone.com/forums/6803-post9.html)
Showing results 1 to 9 of 9

 
Forum Jump

All times are GMT -6. The time now is 02:24.


Powered by vBulletin® Version 3.8.3
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.