Air Nibbler Gridfinity Holder

This is a pretty handy tool for cutting thin sheet metal, which I received as a Christmas gift many years ago.  At 3x5 Gridfinity squares, it does take up a bit of space.  No matter how I placed it, the QD air fitting was always going to exceed 5 squares long, so instead of making it 6 squares wide, I left an opening in that end, so the fitting can protrude a little.  There's usually a little void space at one end of a grid-ified toolbox drawer, since the drawers are rarely divisible evenly by 42mm, so the fitting can protrude into space slightly.

I considered making this an "L" shaped holder to save a few squares, but I opted instead to make a storage recess in that space for whatever.  I would recommend keeping a 3/4" step drill in the space, since that's about the size of hole you need to drill if you want to use the nibbler in the middle of a sheet, rather than starting from an edge.  There's also a couple of recesses for spare punches for the nibbler, which are relatively easy to break.

Like my other Gridfinity models, the base is altered to accept 6x3 magnets as a press fit, with the upper surface of the magnet holes modified to make the slicer bridge across correctly for a clean result.  Due to the size of this model, I have included sacrificial “mouse ears” in the CAD to give the ends more surface area to help prevent them warping off the bed.  These will need to be removed after printing.

The unit pictured was printed out of Polymaker ABS on my Voron 2.4, using a 0.6mm nozzle, at 0.3mm layer height.

https://www.aircraft-tool.com/Detail?id=ATS8300