Topic: stepper motor ,class
Anybody know what class(NEMA form factor) the extruder motor is ?
SD3, E3D hotend,linear bearing on x/y axis',pillow block bearing on y conneting rod, ball bearngs on front y axis, fan on y stepper motor.
- Hazer
- Member
- Offline
Re: stepper motor ,class
NEMA17
Chuck Bittner is a quadriplegic gamer who is petitioning the major console developers to include internal button remapping in all console games. You can help.
Sign Chuck Bittners petition
Sign Chuck Bittners petition
Re: stepper motor ,class
thanks
SD3, E3D hotend,linear bearing on x/y axis',pillow block bearing on y conneting rod, ball bearngs on front y axis, fan on y stepper motor.
Re: stepper motor ,class
I have this stepper motor https://www.sparkfun.com/products/10846, but it says it's only rated at 3v.I just don't know what voltage the current SD extruder operates at.
SD3, E3D hotend,linear bearing on x/y axis',pillow block bearing on y conneting rod, ball bearngs on front y axis, fan on y stepper motor.
5 2014-01-11 17:43:07 (edited by Tomek 2014-01-14 17:53:53)
Re: stepper motor ,class
voltage rating does not matter so much as current rating. You should expect to run something 1-1.5A.
The thing is that a higher voltage is actually in a few ways worse, meaning, you dont want a "12v" stepper even though we're using 12v PSU, because a 12V stepper to be run quickly should have a much higher power supply. The stepper chip controls the current that goes through the motor so it doesn't burn out.
Remember that NEMA17 is a 2D size rating, and does not reflect how deep the motor is. I dont know the stock SD extruder motor size, but it's pretty standard. You just dont want to get a very tiny nema17, which there are some [relatively rare].
My favorite steppers have been from phidgets.com and qu-bd.com They actually both have quite good prices on them. Phidgets has a very interesting collection for other applications, as well.
The stepper satman linked is actually pretty good. Just realize you will have to double the E-step value for your extruder, because his link is a 0.9 degree motor and not 1.8 degree motor. This is actually good for the extruder, not really needed for the other motors.
Re: stepper motor ,class
E-step value, is that in config.h?
SD3, E3D hotend,linear bearing on x/y axis',pillow block bearing on y conneting rod, ball bearngs on front y axis, fan on y stepper motor.
7 2014-01-11 20:25:45 (edited by ronsii 2014-01-11 20:27:26)
Re: stepper motor ,class
yes, you can also adjust the steps by m code, just look through Ian's video on calibrating the extruder
Re: stepper motor ,class
OK TY,I should have known.
SD3, E3D hotend,linear bearing on x/y axis',pillow block bearing on y conneting rod, ball bearngs on front y axis, fan on y stepper motor.