Y-plate assembly

First, slide in the 20mm screws in this orientation, into these holes – they will later serve for attaching the motors, but it’s not possible to insert them later so you have to do it now (or else you will have to unscrew a lot of things):

Then, use 25mm screws, a 6mm spacer and 2 mini precision shims per mini v wheel to attach it in this orientation to the plate:

Do this for both mini v wheels, and repeat it in mirrored position for the other plate:

Now you’ll use 2 more 20mm screws to attach the motor in this orientation relative to the plate: and put 3mm spacers between the motor and the plate before locking the screws with nylon insert lock nuts:

Do it for both plates:

It’s also a good time to attach the GT3 pulleys to the the motors:

Use 60mm screws, and a 6mm spacer, precision shim, a v wheel assembly, a 9mm spacer, another V wheel assembly another precision shim and another 6mm spacer before attaching the inner plates:

And for the lower rows, use eccentric spacers instead of 6mm spacers:

And tighten:

Do this for both plates (mirrored)

Attach the nut blocks with 20mm screws and M5 lock nuts and put a 3mm spacer between the nut block and the plate:

Do this for both plates and before tightening the M5 nylon insert nuts, slide the ACME rod through it so that the distances adjust well

Use 60mm screws, and a 6mm spacer, precision shim, a v wheel assembly, a 9mm spacer, another V wheel assembly another precision shim and another 6mm spacer before attaching the inner plates:

And for the lower rows, use eccentric spacers instead of 6mm spacers:

And tighten:

Do this for both plates (mirrored), and also attach a motor with adapter to the left plate assembly, with 40mm aluminium spacers and 60mm screws: