Thread: Steps per unit daft question
Glad it helped Dave. I can't take the credit though, that info is all from the many many many posts on this forum.
It can take some digging (the search functionality doesn't always make this easy) but often you will find what you need.
Yep, I have pretty much given up using the forum search. Much easier to use google to directly search the forum like this:-
"site:mycncuk.com microstepping mach3"
Works really well and is much faster! :)
1am and I've already learned something new for the day :)
Resonance is big factor in stepper performance and lower micro stepping often make the motors run in area that they get affected by resonance. This cripples the performance.
Jim mentioned it briefly but playing with micro stepping can drasticly increase performance. Every machine resonates different so there's no one setting that suits all machines. ~However rule of Thumb is that higher MS runs smoother but at the cost of stress on the pulse engine. Basicly many more pulses are needed. So if your using the Parallel port some times running high MS can tax the parallel port which struggle to cope with supplying consistant train of pulses. This degrades the quality and frequency and all sorts of strange things can happen. Things from missed steps to poor performance or stalling motors.
That's why External motion controllers are much prefered if running machines at higher feeds. like routers. Small machines like mills etc can get away with using PP and lower MS because they rarely run in Mid band or higher speeds which is where steppers/drives get affected most.
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