Igus RJM-01-12 to SC12UU and to SC12LUU blocks

The printer design that I am working on now, is based on SC12LUUs.

As I try to remove weight to get my carriage to move faster, and also to remove noise from the LM12UUs, I have designed this.

LM12UU are ID:12mm, OD:21mm, L:30mm

I got my hands on DryLin R - Solid polymer bearing model RJM-01-12

But, those are ID:12mm, OD:22mm, L:32mm

So, they could not fit in my SC12LUU blocks. And at any rate, since I wanted to shed some weight, but keep my design intact, I retrofited thing http