LM8UU x-carriage bearing insertion


Here we want to present a short foto story about how to insert the linear bearing into the casted LM8UU x-carriage.

The linear bearings LM8UU are a great substitute for the PLA bushings.
A good model can be found here and is tested to be perfect fitting for the linear bearings.

The casted parts also fit perfect as they are a 1:1 copy of the printed version. Sometimes the bearings even don't need a zip tie to be fixed onto the x-carriage.
But sometimes they fit a bit too tight. When trying to snap in the linear bearing by force the x-carriage may break or gets cracks.

To be sure the parts don't break when inserting a linear bearing, we recommend to use a hair blower on highest heat-level to warm up the part to 100 °C.
As alternative one can use an oven to warm it up.

After this it gets a bit flexible and it is not too hard to get the linear bearing into it's cavity.
It is better to insert it side by side and not both sides simultanously.

With this method the clamps don't break, the linear bearing fits perfect and after cooling the part is ready for use.

Greetings from the lake of constance