Topics

1

General Mach Discussion / More Inputs

« on: July 11, 2016, 08:10:22 PM »

Is it possible to add more inputs? I'm using a UC100 USB controller and wondering if I can now use the freed up parallel port or the other usb ports for more inputs. I'm currently limited to 5 inputs with my breakout board.

2

General Mach Discussion / 2M542 & Mach3 settings

« on: July 05, 2016, 12:46:05 PM »

Hi Guys,

I'm trying to set this up for the best performance, it's tricky as reading through pages here on the forum with conflicting info.
So far the settings seems to make the motors really hot, I know this can be normal. An issue is over 200ipm rapids it stalls, also around 100ipm it resonates and stalls.

I'm sure I can get higher rapids and cutting speeds!

My goal is:
Cut Speed: 150ipm
Repeatability 0.015” (+/-)

I have 2M542 drivers with Nema 24 steppers. 48V 7.3A power supply (including another Power supply for the Breakout board w/ UC100 motion controller & Mach3.)
I have a 4th axis and 2 steppers to drive the Y axis, 5 identical motors for all.

Steppers Nema 24:
Voltage: 4.2V
Current: 3.5A
Inductance: 1.6mH
resistance: 1.2

Settings I have at the moment are 2.37A for the drivers, Full current ON : SW4 5 Microstep res, 1000 step/rev

I'm not sure if these drivers can be calculated the same as Geckos for voltage, etc...? Max is 50VDC for them, I'm supplying 48v.

Should I push up to 3.31A for them...? Is my power supply 7.3A enough? Do I calculate 5 motors, @3.31A = 16.55A meaning I need a 20A power supply?