This is practically the same model as my Triple DC Busbar just with added spacer insert to allow it to be used as fuse block. If you drill the holes accurately and you gonna use just one cubeOTO/MRBF fuse, than spacer insert is not needed, but make sure 20x3mm copper bar is not touching the bolt. In case of using it with 2 fuses, spacer inserts are necessary, as nothing stops copper bar from touching the bolts. It should be printed out of some temperature resistant material. Mine is made out of the PETG. Connection spacing is 20mm.
Materials:
M8x20mm or M8x30mm hex bolts
M8 nuts (x3)
M8 washers (x3)
M3x10 bolts (x4)
M3 nuts (x4)
20x60x3mm copper flat bar
DIN clips: https://amzn.eu/d/0fcmbzBo
The author marked this model as their own original creation.