13. Well it turns out that my design for the end effector isn’t quite right. The peek insert is transferring too much heat into the bearing of the effector, softening the PLA. I think I will have to reprint these parts in abs or nylon and maybe add a fan.
[attachment 21363 IMG_20131117_130354_139Medium.jpg][attachment 21362 IMG_20131117_130249_869Medium.jpg]
@ Guizmo
19. The worm is a ACME lead screw.
I have been having a terrible time calibrating the GDR.
I have two main issues:
[attachment 21363 IMG_20131117_130354_139Medium.jpg][attachment 21362 IMG_20131117_130249_869Medium.jpg]
@ Guizmo
19. The worm is a ACME lead screw.
I have been having a terrible time calibrating the GDR.
I have two main issues:
- Movement repeatability, returning to the same location after multiple movements arrives in the same x and y position but lower in z. I think this is an arm length issue.
- Moving the head across the table does not keep a constant z height. For example moving the head from x-77.94y-45 to x77.94y45 which is aligned with the x arm slowly increased in height about .5 centimeters. I am thinking about looking into the auto bed leveling algorithm.