Topics created by lucagirolamo

Thanks again. I will try.

@lucagirolamo said in Duet to move a 3 DOF robot:

I am sorry, the endstops for the 2 arms are under the base of the robot, so I could see them first.

It helps to have endstop switches (homing switches) built in. Without them (or an equivalent, such as absolute encoders on the motors), the firmware can't tell what the position of the arns is at power up. This can be worked around when using linear kinematics, but not easily when using nonlinear kinematics such as provided by that arm.

See https://duet3d.dozuki.com/Wiki/WiFi_disconnections_and_AJAX_timeout_errors.

Yeah the ups would help only by letting the printer run long enough that hopefully the main power was restored. The ups may need to be rather large to get decent run time if using a heated bed.

The gantry on the z axis may be a bit too heavy for the remaining power to lift successfully. You can try adding some capacitors to the PSU. But I'm not an expert on what type to use or how to install them. You may be able to find the answer by searching the forum though.

I understand, maybe I will continue with my motors since it’s actually not very bad. I’ll rather put this money on other tangible improvements.
Thank you very much for your time and for developing such a great board/firmware like the duet!

Many thanks
Luca