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I just found a custom nema 23 that runs on 1.2A. That should solve any torque problems with the motors. http://store.quintessentialuniversalbuildingdevice.com/product.php?id_product=34. Anyone heard...

does anyone have a schematic for a A3979 driver pwb?
Question: is there anyway to use the outputs to the motors from the A3979s to drive an additional higher output h-bridge. My controller works...

Question: is there anyway to use the outputs to the motors from the A3979s to drive an additional higher output h-bridge. My controller works well, it's just under powered. I'm thinking of it as a...

why is that, I heard two motors will run off one splitting the current depending on equal inductance.
I suppose you could drive 2 separate driver pwb with the same signals for equal motor results if...

My mach has a single y axis motor with a belt to the other side. It's a nema 17 1.8A 30v. it has 33 in travel @ 110 in/min. 10mm @3mm pitch lead screws.
I want to lengthen it to 1000mm to add room...

stepcraft sets their x and z to 1.4A and y and a to 1.8A via resistor size. Does anyone know what resistor values would do this? Is there a schematic? I'm just wanting to increase torque to those...

I have a stepcraft with A3979 microstepper drive chips rated at 2.5A. I want to add a second 48mm nema 17 to the y axis. Stepcraft says their controller is proprietary so no schematic. I see the easy...

Isn't it true that a longer stepper has more torque

I was thinking the signal is correct at the stepper output, it just needs to go through another transistor that can output more current. Much like a preamp to power amp. it's already sending the...

I just got a stepcraft 2 840. I'm looking at upgrading motors. Does anyone know if you can use the 4 wire outputs to the motors to drive a new pwb with more current and voltage to the steppers? I...

just joined, retired, just bought a Stepcraft 2 840. just thinking about larger step motors. is it possible to take the outputs to the steppers and create a drive board to boast the output for a...