1kg spool holder for monoprice voxel

A 1kg spool holder for Monoprice Voxel 3D printer (rebranded as Flashforge Adventurer), which only has 500g spool holder. (you also need to drill a hole to the filament to go through)

I designed the holder to be fixed onto the original spool holder rid of the printer, but it should work with any flat surface (120mm ɸ)