First prototype 3D printed assembly clip.

A project log for Entropy Wheel Heat Recovery Ventilator

Rotating perforated disk counter-flow heat exchanger maintains indoor temperature while exchanging fresh outdoor air.

bryan-williamsBryan Williams 09/02/2014 at 04:200 Comments

My first attempt at using OpenSCAD to design a "comb" to hold the coroplast layers together. Looks very promising. First prototype is a bit tight, accumulating a bit of tension over the 7 layers I tried. I still have to devise how to tie these together with a printable frame and tie to a central bearing - might leave that to SketchUp.