Hegner Scroll Saw Bellows

Replacement bellows for Hegner scroll saws. These typically fail (crack) due to the original material hardening over time. Hopefully this model will allow to you to make a fast/cheap repair to your saw using flexible filament (TPU).

Files:

- hegner_bellows.scad - simplistic OpenSCAD model to create the shape. Tweak top and bottom openings as needed to match your saw. All slopes are at 50 degrees (measured from horizontal) to avoid the need for support. Defaults are 28mm/84mm openings in the bellows and 1mm sidewall thickness (provides room for 2 perimeters with a typical nozzle).
- hegner_bellows_28_84_1mm.stl - STL model built with OpenSCAD defaults.
- assorted photos showing original (failed) part, rendered model, printed part, and installation.

Instructions:
- (Optional) Tweak the OpenSCAD file to change settings to match your Hegner saw if you need something different than defaults and generate a new STL.
- Slice (my settings below). Goal is t