Opinions please. The pulley on all of the axis were bored out manually on a pillar drill (I know, stupid idea - I had no acess to a lathe) so they are are slightly off centre. They have 1 m4 grub screw in also clamping onto the flat of the motor shaft / ballscrew shaft.
after the slipping episode I am wondering whether to
a- have them rebored to a larger diameter and have an insert made up and add another grub screw for fixing
b- order some new pulleys that are pre machined at around £70
how much would optio a cost (if anyone is up for the job) or would anyone want to buy my old pulleys to modify and use.

i was just going to loctite them in place as is but if they align at worst case the belts tighten and loosen which isn't the best.

next question.. My dust extractor is linked via a relay for Mach to control. When in e-stop mode the relay is inactive. When the machine is reset the relay is active and switches the extractor on. How do I get the relay to be controlled via the g code command instead. The vfd run start stop is controlled this way and works fine but I have wired the extractor in a similar way and it's not working as expected.