100mm to 75mm pipe adapter

Adapter for 100mm OD (which means inner diameter for the adapter) to 75mm OD (inner diameter on adapter).

This is used as a temporary adapter for a Troctec Lasercutter fume extractor unit. To connect between hose from fume extractor output and window.

Wall thickness is 3 mm. (But it's all parametric is OpenSCAD).

I needed this thing for a quick fix. I will be recieving a "real" adapter soon. This means I printed it "fast" on Ultimaker 2; 0.25 layers, 100 mm/s, 0.6 shell thickness with 1