Arrow Square Tool

thingiverse

I threw together a small arrow square tool that's mainly designed for the 5 mm ID arrows like Easton Axis & FMJs. It should work seamlessly with micro diameter InjeXions right out of the gate, but might require some light sanding to get a snug fit for regular Axis & FMJs. Personally, I used 5 mm FMJs 300 spine with the .273 OD and needed to do a bit of sanding to achieve a good fit. To make this process easier, cut up a piece of sanding paper, glue it on the inside of the lid, slide the lid on, and you're ready to go! To ensure your printer produces a perfectly straight piece, I recommend checking it with a bubble level - mine was fine, but you never know how your printer will perform.