you can go over the stepcraftcard and then in the Spindel card.
i have done it with my china spindle bevor and Now with the james spindl from james here and an arduino and an controller for brushless motors
i also read in the rpm with a sensor for aound $3 from hobbyking over the
Rory schrieb: Very nice!!! out of interest - where exactly is that pin for PWM coming from? Through the SC card? Or via external source before going into main card?
The pin for the PWM is coming from the driver which came with the spindle, which is connected to the Sub-D 15 on the back of the stepcraft machine and the pin layouts I got from the Operating Instruction manual page 16.
I'm using relay 1(pin 13 on Sub-D 15) and a ground pin (pin 2 on Sud-D 15).
Stepcraft 420 (version 1) - HXKJ-GS52-400W Air cooled DC spindle - 445nm Blue Laser diode G2
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