Dear all,
Thanks to Charles. My stepper motors have been worked stably with A4988
driver.
I try to summarize as follow:
Firstly driver output current have to be adjusted according to stepper
motor specification.
Secondly Scale have to be set properly, for example, for 400 pulse /rev,
screw l
On 9/22/2016 9:46 AM, euerka wrote:
>
> May I guess in this comment 320,000 KHz should be 320KHZ, is it?
Yes, sorry. The speed required by your configuration was 320 KHz or
320,000 Hz. My goof on the extra zeros.
> If PRU maximum pulse speed is 50KHZ, the max speed is 500? Because scale 100*
Dear Charles,Schooner, Bas de Bruijin,
Due to time lag and working, sorry for late reply.
could it be that instead of 4 rev/mm you have a reduction of 4 mm/rev ?
> that would mean 100 full steps/mm and might make more sense.
>
First of all, I make mistake that is should be 4 rev/mm. So I chang
On 9/21/2016 5:03 PM, Charles Steinkuehler wrote:
As motor specification shows 0.9 deg per step, 400 step/rev * 4 rev/mm=1600
step/mm
> my target is 1600 steps per mm.
>Then I tested G01X1.f40., it looks rotate 4 round.
>If i tested G00X1.F40., Motor freezed and make noise. Speed too fast???
On 21/09/16 15:45, euerka wrote:
Dear all,
Recently i am trying to use CRAMPS.ini(without cape just BBB) to
drive step motor.
My Motor model is:
Moon's stepping motor
Type 17HA6403-09N
Driver is A49
On 9/21/2016 9:45 AM, euerka wrote:
> MAX_VELOCITY = 200.0
> MAX_ACCELERATION = 3000.0
> # Set Stepgen max 20% higher than the axis
> STEPGEN_MAX_VEL =240.0
> STEPGEN_MAX_ACC =3600.0
> # these are in nanoseconds
> DIRS
Dear all,
Recently i am trying to use CRAMPS.ini(without cape just BBB) to drive step
motor.
My Motor model is:
Moon's stepping motor
Type 17HA6403-09N
Driver is A4988
P8-13 and P8-14 are used as stepdir and step.
First of all, I adjust the limit current to 0.43A according to motor
