On 21/09/16 15:45, euerka wrote:
The stepper timings you are using are the theoretical ones for the chip from the spec sheet, but take no account of any other
source of delays such as opto isolators etc
Try increasing dirhold / dirlen to 1us and steplen / stepspace to 5us
If that cures it, try reducing the figures towards the chip specs until you hit problems
The second issue and potential hiccup are your speeds,
if an axis ever moved far enough to build towards the maximums, I would expect it to stall.
Are you really expecting your Nema 17 (?) stepper to be able to accelerate at 3.6 metres per second per second?
Or to move an axis 14.4 metres per minute?
Try calculating how many step pulses that would take and whether you can generate them
I would move the decimal point one place left for all velocity and acceleration figures and scale up only if
you can show spare capacity in step generation
website: http://www.machinekit.io blog: http://blog.machinekit.io github: https://github.com/machinekit
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- [Machinekit] Stepper motor configuration euerka