gregsaun/vertical_hole

Openscad lib to improve 3D printed vertical holes

Vertical Hole Library for Openscad

When 3D printing vertical holes (with FDM printer), the top of the hole is flat and reduce the hole diameter. This library creates a hole with a specific shape on top to avoid this diameter compression.

With this library, you do not need to clean the hole (drill the hole) after printing :)

Material used and tested

• Prusa i3 MK2s Bear upgrade
• FormFutura PETG HDGlass Blinded Silver (nozzle 230°C, heated bed 80°C)
• Prusa Firmware 3.1.0 with Linear Advance activated and manually calibrated
• Slic3r Prusa Edition 1.37.2

Status

I am currently testing the perfect shape/sizes. I have only tested 0.20mm layer height with default slic3r PE settings (2 perimeters, 5 tops, 4 bottoms).

Sources

• This library as been inspired by the x-axis-end of the Prusa i3 MK2 printer, check line 79 here

• Why we have this type of hole in FDM, read this

License

MIT License
https://choosealicense.com/licenses/mit/