# Smart Brim

To avoid a brim damaging the mechanism the main body has a custom build in brim. The brim is a separate structure printed parallel to the edge of the main body.

Sometimes slicers automatically combine the brim and the part, this makes the brim hard to remove.

### Checking the bottom layer

In the layer-by-layer preview of your slicer look at the bottom layer.

The outer brim should be printed as a separate structure.

## Ultimaker Cura

Cura (v4.4) automatically slices the smart brim suitably for printing.

## PrusaSlicer

By default in PrusaSlicer (v2.1.1) the smart brim is incorrectly printed as an extension of the microscope base.

To fix this:

- Select "Expert" tab of PrusaSlicer.
- Right click on the STL file in this tab
- Select Add settings > Advanced menu.
- Check the "Slice gap closing radius" box and click OK.
- Locate the "Slice gap closing radius" in the expert tab
- Set the value to 0.001 mm.
- Re-slice the model