since it’s practically impossible to get a wrench on the included nuts to tighten-down the stepper motors, the issue can be solved very simply via additional M5 eccentric nuts.

once on a motor bolt (backwards works best) they make about half rotation at most and then jam against the motor housing itself — they stop spinning freely and become self-wrenching.

no need to replace the original bolts or reverse/cut-off anything; these should be included in the kit?