Messages

1

General Mach Discussion / Re: 2M542 & Mach3 settings

« on: May 21, 2018, 04:16:49 PM »

It was the crappy computer after all. Replaced it, and the machine is running much better now, with faster rapids.
However, the smooth stepper is something I will think about in the future, when the budget allows it.
Thank you for your help and insight

2

General Mach Discussion / Re: 2M542 & Mach3 settings

« on: May 21, 2018, 04:09:03 AM »

Is there a way to reduce it?

3

General Mach Discussion / Re: 2M542 & Mach3 settings

« on: May 21, 2018, 02:59:58 AM »

dont have the internet in my shop, so I took a pic.
common prc bob, cheap 5axis breakout board that is sold on ebay. I use the same bob, drivers and steppers on my mini lathe, and its under linuxcnc, with 1200 mm/min rapids. on my mill, I cant go over 500 mm/min without the stalling.

4

General Mach Discussion / Re: 2M542 & Mach3 settings

« on: May 19, 2018, 05:53:21 PM »

I know its an old thread, but my question is kinda same and I dont want to start a new thread.
I use a common PRC 5axis bob, with 25khz, and 2M542 drivers, 48V power supply and a bit smaller motors than the OP - 2phase, 3.08V, 2.8A, resistance 1.1, inductance 3.6, 1.89 Nm. No matter how I tune it in motor tuning - slow like 400 mm/m or 1200 mm/m, and no matter what accel, they stall after a while, loosing steps. I chose half current. I am aware that the 48V power supply isnt the best choice for these motors, but thats what I got.
I did set them to 5 micro steps, leadscrew is 2.5mm, 1000 steps per min, multiplier is 2.5 (belt). I tried all possible combinations in motor tuning with step pulse 1-5 and dir 0-5 (not over 5), but no luck. stalling.
I would like to get the fastest rapids possible, cutting feeds have to be slow. but to wreck every part I tried to make for like 10 days......its frustrating.
Thanks for help

5

General Mach Discussion / Re: Mach3 configuration for EmcoF1 mill

« on: April 03, 2018, 03:58:24 PM »

my God.....I accidentally realized that I have to supply 5V to the board also......and that solved the problem.... for now.

6

General Mach Discussion / Re: Mach3 configuration for EmcoF1 mill

« on: April 03, 2018, 02:06:28 AM »

OK, I will try that! Thanks!

7

General Mach Discussion / Re: Mach3 configuration for EmcoF1 mill

« on: April 03, 2018, 02:00:38 AM »

I did try it like in the manual, and that isnt working as it should, thats why I tried the other way around, and got some decent results

8

General Mach Discussion / Re: Mach3 configuration for EmcoF1 mill

« on: April 02, 2018, 11:09:42 AM »

and with these (after I moved the power cable of the spindle motor away from the inner 25 pin cable) I got OK results (no lag or interference). but, if I turn on the relay (with active low setting) I get bad response on axes, and barely constant movement on the spindle motor. and I need the relay for changing directions. I lost any idea what settings did I try all these days before (and I failed to write them down as I should)
also, I am clueless how to setup the spindle base freq. and minimum pwm - my motor has max 4000 rpm (and I forgot the teeth number on pulleys)

9

General Mach Discussion / Re: Mach3 configuration for EmcoF1 mill

« on: April 02, 2018, 10:57:46 AM »

these setting seemed to work... and yes, thats the board.

10

General Mach Discussion / Re: Mach3 configuration for EmcoF1 mill

« on: March 31, 2018, 11:39:47 AM »

Thank you, I will, as soon as I get to the shop, and make them. I have no internet connection there.