# Blender Tips and tricks I've picked up for using [Blender](https://www.blender.org/). My main use-case right now has been taking an existing mesh and splitting it into two, while filling the holes mirror-wise. The desired result of this process is to have two solid objects that mate perfectly when 3d-printed. select geometry -> Mesh -> Separate ctrl-l to select connected (object mode) ctrl-j to join objects grid fill sometimes helps select two vertices -> `f` to make an edge select two edges -> `f` to make a face alt+MMB for refocusing the camera ctrl+RMB for make a new vertex in space?