Line Roller carriage (adjustable)

An adjustable line roller base for Kossel mini carriage (or as replacement for a MGN12 linear rail) that allows for different profile and wheel sizes. Designed for Maker beam 1515 but should easily accommodate 2020 and 1530. Uses dovetail blocks for the wheels. Base mounting for any MGN12 compatible carriage.

Pictured using small shower rollers, readily available from the hardware store.

Requires 35-45mm M3 bolts for the dovetail blocks and M3 embedded nuts. Tolerances are very tight.

Shown with JAW's Kossel Mini Carriage R2 Remix of Boksbox's design - https://www.thingiverse.com/thing:2377001 - a very nice design with MGN12 spacing and M3 for adjustable endstop.