The original model was quite bulky and used an uncommon magnet size.

• This remix shortens the depth from 6 inches to 3 inches.
• The duct hole is moved higher to accommodate for the depth.
• Magnet size changed from 9x3 to 8x3 as 9x3 are double the price.
• As per the original, the print will pause at layer 50 to allow for embedding the magnets. For those that don't want to do this, you can sink the model in slicer 0.5mm and it should reveal the holes. And if you don't want to do that there is an offset plane in the Onshape model.

Onshape link for those that want to make their own edits: https://cad.onshape.com/documents/e6b300e5aa1c3ecc0c90c713/w/9504f0b8e2c835ab9471ab24/e/4c99ed168d56e116c84bf6bc

Waiting for magnets to ship so I have not yet printed this.

I am not that guy that the original author was arguing with, I just don't have that much space behind my printer.