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which Stepper shipped with Prusa i3 Pro ?
Posted: Sat Apr 15, 2017 2:25 pm
by siam
Hello,
i can't find any Information about the Stepper motor's is there a Datasheet somewere
regards
Andy
Re: which Stepper shipped with Prusa i3 Pro ?
Posted: Sat Apr 15, 2017 11:14 pm
by rotormansa
Assuming I3 Pro B then this is the motor on the Extruder Mk8
http://www.casunmotor.com/nema-17-stepper-motor
Made by Causn, Model 42SHD0217-42B
Re: which Stepper shipped with Prusa i3 Pro ?
Posted: Sun Apr 16, 2017 12:34 am
by siam
Hello,
yes i mean the i3 pro B
The Stepper for the extruder is the only motor with a type sign
the others don't have this.
primary i will know how much Ampere or Milliampere they max. tolerate ?
regards
Andy
Re: which Stepper shipped with Prusa i3 Pro ?
Posted: Sun Apr 16, 2017 1:04 am
by rotormansa
The link is to the data sheet spec. This motor is 1.5A max. I have mine set to 1.2A and it is working great.
Re: which Stepper shipped with Prusa i3 Pro ?
Posted: Sun Apr 16, 2017 3:27 am
by siam
this is clear and the extruder works so far
i have changed the stepper driver from A4988 to DRV 8825 and now i will calibrate the new driver for the other 4 steppers
Re: which Stepper shipped with Prusa i3 Pro ?
Posted: Mon Apr 17, 2017 9:46 pm
by siam
ok i found on one stepper the type number
it is 42shd0034-20b with 1 Amp.
https://www.geeetech.com/hybrid-stepper ... -1011.html
spezifikationen
allgemeine spezifikation
schritt winkel: 1,8 °
anzahl der phase: 2
isolationswiderstand: 100MΩmin. (500 V DC)
isolierung klasse: Klasse B
rotorträgheitsmoment: 38g cm2
masse: 0,2 kg
verdrahtung länge: 700mm
anschluss: XH (2.54mm-4pin)
nettogewicht: 232g
gewicht: 310g
elektrische spezifikation
nennspannung: 5 V
nennspannung: 1.0A
widerstand pro phase: 5,0 Ω±10%
induktivität pro phase: 6.2mH ± 20%
haltemoment: 300mN. m
rastmoment: 12mN. m