Hi everyone. This isn't specifically Arduino related, but was just wondering if someone has experience in TMC2226 or similar stepper motor drivers. I have built a two-wheeled self-balancing robot for my final year engineering project using stepper motors and two tmc2226 motor drivers. I am powering my system using a 12V battery. Everything is working well, however, I feel as if the torque from the motors are not sufficient even when turning Vref all the way up, and was wondering if the tmc2226 drivers maybe have a current limit setting which you could change? I am using 1.6A, 45N.cm Nema 17 stepper motors, stepping them at 1/32 microsteps, and I think with this setup, torque should not be an issue even with the microstepping. When measuring the current drawn by the motors, only 2.3A peak current is drawn between the two motors combined, which leads me to think that it might have something to do with the drivers? Is someone can assist me with this, it would be greatly appreciated! Please let me know if additional information is needed.
Perhaps this page will help? Silent2226 - FYSETC WIKI
At what speed are you running the steppers?
Can you post your test code? Please read the forum guidelines to see how to properly post code and some information on making a good post.
Use the IDE autoformat tool (ctrl-t or Tools, Auto format) before posting code in a code block.
For highest speed and torque supply the motors at the highest voltage allowed by the drivers.
A schematic or wiring diagram is often helpful, too.
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