@Steven_Kirby sorry not received it yet more technical problems, please send your email address to andrew@andornot.co.uk and i will sort
Sorted! Thanks, @Andrew_Wade
@Arthur_Wolf @StephaneBUISSON
IMHO: these ‘smart steppers’ hide/solve a problem that happens at a higher layer, path planing and axis acceleration.
Trimanic (e.g. TMC 2130) drivers are able to calculate the ‘load angle’; simplified ‘how much more torque could be provided’. The firmware could use this information to e. g. slow the machine down before step loss occurs. Compared to closed loop steppers, this would effect all axes simultaneously and reduce print artifacts.
@Roland_Mieslinger Trying to compensate for forces and torque is already what the path planner in Smoothie does. This feature is in the drivers in case you want to offload it to the drivers, but that’s not necessary in this case since Smoothie is already doing it. Same thing goes for drivers capable of ramping themselves.