Can't get enough steps or maybe power
June 07, 2016 02:54PM
Hi All,

I have a new z-axis made from a TR18 leadscrew through a 1:16 gearbox, I've attached a Nema23 at first through the pololu driver and then through a 4A Pibot electronics stepper driver (TB6600) but it only functions up to around 5200 steps/unit. I'm using Marlin/Ramps1.3. Is there anyway of getting a higher step count (12800 would be great!) using my current hardware?

Thanks for any help.
/Trig.
Re: Can't get enough steps or maybe power
June 07, 2016 03:03PM
If it's losing steps, lower the DEFAULT_MAX_FEEDRATE from 5 to 2.
Re: Can't get enough steps or maybe power
June 07, 2016 04:15PM
Thanks stephenrc, that kind of worked, I can get up to 12800 steps/mm now. For some reason auto home on z has now stopped working, it just drives straight through. Maybe I'll try to 1/8 step at 6400?
Re: Can't get enough steps or maybe power
June 08, 2016 01:18PM
Thanks again, finally sorted, a combination of the default_max_feedrate and the wrong voltage to my hall effect sensor!!
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