Parametric Kitchen Knife Sheath (Improved Remix)

Remix of Parametric Kitchen Knife Sheath by bikecyclist and vorpal (Steve Pendergrast)

Should work for any knife that is pointy at the end. (For non-pointy knives, guesstimate the length the blade would have if it had a point.)

There is an option to provide the sheath with "windows" so you can easily tell if the knife is serrated and has the shape you are looking for without unsheathing it. These windows are on alternate sides of the sheath to facilitate cleaning.

Update 1 June 2020:
- Now supports negative grip cutoff angles (Thanks to prb333 for the suggestion!)
- However, due to Thingiverse customizer shortcomings, the new version is not available via the online customizer. You'll have to download the file "Parametric_Kitchen_Knife_Sheath_V5.scad" and run it in OpenSCAD on your personal machine, I'm afraid.
- The new version is also available via customizer, here: https://www.thingiverse.com/thing:4418138

Update 23 May 2018:
- Fixed a bug with windows in thick walls,