bad shower door rollers [ workaround ]

I ordered 19mm x 6mm wide shower door rollers for my t-slot delta. They were the only ones I found for my M6 carriages I had already printed.

But what I got was only ~5.2mm wide rollers. With a little push, they would disappear in the slot completely.
Inspired by t3p3´s delrin dual bearing rollers, I made the best of it and added some washers and a 686zz bearing to the 6mm shaft.
Make sure, you put the washers the right way round ( they are slightly convex ) to allow the bearing to run free.

The rollers now sink into the slot half way and add some sideways stability.
The outcome is so far pretty accurate and smooth running. I had to clean up the nylon rollers on some spots ( injection molding marks )

It has to get worse, before it get´s better ( Lao Tse, or was it Gandhi ? )
-Olaf

Edited 2 time(s). Last edit at 09/07/2015 03:33AM by o_lampe.