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Bizarre step size issue?
Posted: Tue Apr 09, 2013 7:23 pm
by gungn1r
So I recently put together a rostock max lasercut kit with my own rambo board and stepper motors I
purchased from ultimachine. Anyways, so I got everything running smoothly and I went to calibrate the machine but I measured the printable Z-height to be 186.2mm which I know is messed up, it should be around 350mm right? Anyways, I figure it's probably because of my motors having different step length and I should change it in the firmware. If anyone has any idea what calculations I should do to get the correct step length, or how to otherwise correct this please let me know. Thanks!
Re: Bizarre step size issue?
Posted: Tue Apr 09, 2013 7:51 pm
by rs50pilot
Sounds like you need to change your micro steps. Which rambo do you have and what firmware did you use.
Re: Bizarre step size issue?
Posted: Tue Apr 09, 2013 7:53 pm
by rs50pilot
Read through mhachneys build page it is explained there.
Re: Bizarre step size issue?
Posted: Tue Apr 09, 2013 8:42 pm
by gungn1r
Ah thanks man!
Alright I'll post this for people looking through this thread for an answer.
"Turns out that the 1.1 Rev of the RAMBo is 16 micro steps. I don't know how long this version has been out but it is what came with my kit. Simply changing:
#define MICRO_STEPS 16
in configuration.h solved the problem and I am now working on calibration."