Carpenter pencil sharpener guide/grip

I wanted a sharpener guide for my carpenter pencils. My granddad could always get them rightly sharpened, but since I do woodwork so seldom, it doesn't always get into a nice uniform tip when I do it. The printed actual size of ellipse is around 12.1 x 7.9 mm. Update: After request I have added a second build plate with ellipse 15x7mm. Check what size you need. Seems to differ.Update2: Now added a PLA profile with brim. Also in this profile an addition of 15x7.5mm Square design included. Angle is 20 degrees in both directions. Turn the quide to sharpen all sides of the pencil. When using the sharpening guide I realised that it could also double as a ergonomic grip. Also potential to use it as a guide when you want a uniform distance to a ruler. One carpenter pencil I had was a sliding fit Another was a tight fit. I chose TPU for this, but should be feasible with other plastics.