Whilst building the PALZero by ajcraig I came across several errors. One being that the button mount is the incorrect model and that the middle button hole is too big to fit the push button listed in the BOM. If you look closely at his build pictures, you can see his prints do not include this bigger button hole.

I have also reorientated all the STLs ready to print.

I have used pretty much all the same materials that ajcraig has used. If you want to have a cooling fan, you will need a small 5v fan and a transistor (I used a S8050 NPN transistor).

I must stress that ajcraigs models and guide are really good and was very well written. There are problems thought and I thought I would help out by sharing what I did to complete the project.