Quote Originally Posted by lucan07 View Post
I run a slaved axis without the fancy tuning just a pair of 23's and apart from homing seperately to ensure correct alignment at start, no other precautions, if slaving I would think the tuning needs to be identical whatever the complexity of the system.
However I did play with the idea of linking with double pulleys and a timing belt to keep in sync in case of problem, and also double pulleys on drive with two four fanned blades synced centrally 45 deg off sync so any deviation of 45 deg rotation would collide/contact forming connection and forcing an E stop, s well as providing visual assurance to alignment preventing damage. In the end I decided to go with my ears and a sprint.
Hey, I too am going to be running dual ballscrews on my X axis, can you confirm if you are using a parallel DB25 setup or an independent controller i.e: GRBL. I was hoping to not need to run a pulley set to keep them in sync and it seems like you aren't. Have you had issues with your setup i.e if one stepper misses a step or 2?

Cheers,


Dave.