Can't get motors to turn

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08 Apr 2014 22:36 #45701 by n_spect_r
I am new to this, trying to retrofit a Bridgeport to LinuxCNC. We bought stepper motors and controllers from Buildyourcnc.com. I am using a parallel port breakout board. I have only the X axis motor connected. From in LinuxCNC I can not get any rotation. I downloaded a parallel port tester applet
wiki.linuxcnc.org/cgi-bin/wiki.pl?Parallel_Port_Tester From the tester, when I click on pin 2 the motor makes one step. Been searching for several days and can't find any solution. Not sure exactly what forum this should be in so I'll start here. Thanks.

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09 Apr 2014 00:18 #45704 by cncbasher
Replied by cncbasher on topic Can't get motors to turn
do you have any error or warning messages ? , did you connect up any limit switches or Estop etc . or amplifier enable
post your hal and ini config files , which version of linuxcnc are you using and what connections have you made etc , these all help .

usualy if you have any enable connections to your stepper drives , it's a good idea to remove this whilst testing , did you use stepconf to make your configuration ?

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09 Apr 2014 21:15 #45760 by n_spect_r
Replied by n_spect_r on topic Can't get motors to turn
No limits yet I just have things on the table. I have found a solution, had to set all of the driver values to 10000 and managed to get things moving. These motors dont seem to like going faster than 14 ipm though. I ran some sample programs and the computer monitor moves but the motors just bump and hum, slowing things down and I have movement. Thanks for the reply. I plan to start mounting things today.

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10 Apr 2014 02:10 #45769 by cncbasher
Replied by cncbasher on topic Can't get motors to turn
describe your drivers, or the design you have used

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11 Apr 2014 21:12 #45849 by n_spect_r
Replied by n_spect_r on topic Can't get motors to turn
Microstep driver CW230. We bought a package of 3 425 oz-in motors and controllers with parallel interface.
Might need to increase to a 651 oz motor. Initial testing has been pretty good but I have to keep speeds down below 15ipm. Compared to 0 that's pretty good. Compared to the Mazaks in the shop it's slow. I'd like to know what each value means, Time-Space-Direction Hold-Direction Setup, I'll do some googling. Looking for someone else that has this setup.

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