Controlling stepper duty cycle in PIC boards

Hello!

I have some steppers with a low coil resistance, right now I run them with some 12 ohm 50W series resistors, but it seems like a waste of energy.

Is it possible to adjust the PWM duty cycle somewhere from software?

I have roamed aroung the Live CD but couldn't find it in the reprap program menus...

I searched the PIC code and found some variable called "CCPR1L" with a default value of 4, which according to comments was 25%.

With my about 1 ohm coil and a 12 V power I should need about 5% duty cycle
to get about 0.6 amps.

Any hints would be helpful!!!

i'm not 100% sure, but i think the 'power' setting in the exerciser controls it. i'm not sure which setting in the prefs controls it, but that should get you going in the right direction.

Hello Zach!

Thank you for your suggestions!


Humm, no power setting in the excersiser or I have gone blind (it has happened before ;-)

Maybe the software on the Live CD I have is different than the installed software?

I tried to install the Java on my Windooze box before but failed horribly.. guess I have to go at it again...