Filament Storage (IKEA SAMLA) - 65L Drilling jig

I had some 2kg spools from Devil Design Filament, that wouldn't fit in the 22L SAMLA box. Instead, they fit in the 65L box.
My 2kg spools are 30cm in diameter, and by using this drilling rig to place the sockets for the pipe to hold the spools, I have room for 4 spools in the 65L box.
The 32 mm pipe will need to be cut to a length of 447mm in order to match the mounting sockets in the box.