As pretty as the wood cases are for the nixie tube clocks at nixieshop.com, I knew I wanted one with some tilt, so I can see it at my desk without the numbers being obscured by the grids in the tubes. I also wanted it to be as compact as possible.
This simple case fits my needs. The PCB slides in from the bottom and is secured with four 4-6mm M3 socket cap screws. A small clip holds the PCB in place and prevents it from flexing when you press the button/knob.
I am showing off the z753m nixie tubes, but other tubes should fit the case as well.
Tip: if your board gets stuck because it's at an odd angle, don't push the tubes. Instead pull the brass standoffs from the bottom with pliers or longer M3 screws.
For a wood grain finish I followed the method featured here by PandaN: https://hackaday.com/2025/06/03/add-wood-grain-texture-to-3d-prints-with-a-model-of-a-log
A prepared .3mf file is included for reference, as well as the Fusion360 file for modification.
The author marked this model as their own original creation.