Users report step speeds above 1000 steps/s result in erratic motor operation

phucktdt / eggbotcode

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Users report step speeds above 1000 steps/s result in erratic motor operation #73

Closed GoogleCodeExporter closed 8 years ago

GoogleCodeExporter commented 8 years ago

Test maximum motor step speed based not on motor type or voltage but on smooth 
step pulse output to the motor drives. Determine the maximum step speed that 
the current firmware can handle. If it seems quite low (like 1000 s/s) then 
figure out why and fix.

Original issue reported on code.google.com by br...@schmalzhaus.com on 15 Mar 2014 at 12:24

GoogleCodeExporter commented 8 years ago

I'll handle this one.

Original comment by brian.schmalz on 15 Mar 2014 at 12:27

Changed state: Accepted

GoogleCodeExporter commented 8 years ago

After doing some investigation and testing, I had no problem producing step 
rates up to 25,000 steps/second (the maximum that the EBB can produce because 
the step-producing ISR runs at that rate).

For example,
SM,1000,10000,10000
works just fine (10KHz step rate) with the motors I was testing with.

I'm closing this issue unless there is other evidence that the step rates are 
not being generated properly.

Original comment by brian.schmalz on 16 Mar 2014 at 1:51

Changed state: Invalid