Back_Leadscrew_Bracket

This is a bracket for a lead screw at the back of the Core_XY printer.
First I have to apologize: I am certain that I published an earlier version but can't find it.

This version is a lot simpler, although it also has a little room for adjustment in the Y-direction, for when your configuration is not quite vertical. For sideways adjustment one should use the motor mount.

There is one serious problem with using 1 normal lead screw: the bed goes down when the power is off. I made a Z-axis brake (https://www.thingiverse.com/thing:4245241) but it had very limited use. Can't advise it.

Still, two versions: one for the usual lead screw nut and one for the POM-Nut_Tr8*4 which came with the motor/leadscrew combination from RobotDigg.com, type 17HS3001-400N84, I now use.
(https://robotdigg.com/product/245/Tr8*4-400,-500-or-600mm-Leadscrew-Threaded-Linear-Nema17)

It claimed to have a better quality lead screw than the usual, so I tried and like it, despite the price. I have no co