Correct, at 250ma it just did nada....(but vibrate)..
So I've been playing with this now for some time running the 2130, then back to the 8825,
Playing with the current on the 2130..up..down..playing with different speeds but have not yet gotten the 2130 where I wanted it...
Ordered a 12-24V dc-dc boost and am going to try that with one axis using the 2130....
For the heck of it, I checked the trimpot voltage on the 8825's, right where they should be at .75V (Rated motor current is 2A so at .75 Max current is at 1.5A).
Dropped it down to .42 which dropped the max current to ~850ma. Boy that made a difference! It got much quieter.
So far no layer shifts...
So I guess the lesson here is that there is no need to run at higher current levels than needed, all it seems to do is create noise (in my case)
Still going to play with the 2130 when the dc-dc boost comes in...
So I've been playing with this now for some time running the 2130, then back to the 8825,
Playing with the current on the 2130..up..down..playing with different speeds but have not yet gotten the 2130 where I wanted it...
Ordered a 12-24V dc-dc boost and am going to try that with one axis using the 2130....
For the heck of it, I checked the trimpot voltage on the 8825's, right where they should be at .75V (Rated motor current is 2A so at .75 Max current is at 1.5A).
Dropped it down to .42 which dropped the max current to ~850ma. Boy that made a difference! It got much quieter.
So far no layer shifts...
So I guess the lesson here is that there is no need to run at higher current levels than needed, all it seems to do is create noise (in my case)
Still going to play with the 2130 when the dc-dc boost comes in...