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Post by jjlink on Mar 6, 2016 15:34:56 GMT
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Post by travistrue on Mar 7, 2016 15:07:34 GMT
How faster do your stepper motors move when zeroing? If they're moving very quickly while homing (beyond 1200mm/min), then I'd suggest slowing them down. The Azteeg isn't immediately alerted when an endstop is triggered --rather, the Azteeg's gotta check to see if an endstop is down every iteration of its run loop. Slowing the homing motion down will allow it to perform more checks per distance traveled, which means it'll be able to check when that endstop is triggered sooner than if it were traveling faster. Once the Azteeg detects that an endstop is down, it also takes time to decelerate the stepper motors, which also means the steppers stopping must overcome the current momentum of the belt and gantry. This all happens very quickly, but it could possibly throw things off by a millimeter or two. Still, the Azteeg firmware should correct this by moving the back from the endstop axis pushed, then forward again slowly to yield a pretty accurate home position.
Btw, you have an LCD attached to your Azteeg microcontroller?
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Post by jjlink on Mar 7, 2016 15:19:46 GMT
How faster do your stepper motors move when zeroing? If they're moving very quickly while homing (beyond 1200mm/min), then I'd suggest slowing them down. The Azteeg isn't immediately alerted when an endstop is triggered --rather, the Azteeg's gotta check to see if an endstop is down every iteration of its run loop. Slowing the homing motion down will allow it to perform more checks per distance traveled, which means it'll be able to check when that endstop is triggered sooner than if it were traveling faster. Once the Azteeg detects that an endstop is down, it also takes time to decelerate the stepper motors, which also means the steppers stopping must overcome the current momentum of the belt and gantry. This all happens very quickly, but it could possibly throw things off by a millimeter or two. Still, the Azteeg firmware should correct this by moving the back from the endstop axis pushed, then forward again slowly to yield a pretty accurate home position. Btw, you have an LCD attached to your Azteeg microcontroller? Yes, I have a ViKi LCD v2.0 to Azteeg X5 mini V1.1 I also went back and followed the quick start instructions using Repetier (rather than Simplify3D) just to make sure things are setup up right. |
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Post by jjlink on Mar 8, 2016 0:36:27 GMT
I went back and followed the quick start instructions using Repetier (rather than Simplify3D) just to make sure things are setup up right. Yes, these are very good startup instructions in the quick start guide, its up a running making the first print.  |
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