Cylinder Honing Tool

I'm rebuilding a mower engine, and needed an honing tool to polish the cylinder.

Use with wet, fine grit sandpaper. I used 2000 grit.
Use 1.75 mm PLA cut-to-length as assembly pins.

I printed mine at 30% infill, triangle shape. It did great.

I made this in a rush, so expect inconsistent variable names, a few hard-coded values and all, but it's not too bad. It's pretty simple so it should be easy to adjust for your needs.


As Taryl would say: "It ain't the space shuttle! It's a lawn mower."

Fits a 3/8" drive.

Possible improvements:
-Add thicker/deeper bearing surface for the 3/8" drive
-Add a slot of some sort to hold the sandpaper



Enjoy!