ABS 3 mm extruder prototype Free 3D print model

Here in Chile, getting ABS is expensive as hell, with shipment and taxes I easily get each kilo per $100 usd or more.

So I thought about making a very cheap extruder machine that everyone can build to make filament from ABS pellets (I can get 1 kg per 2-3 usd in my country). Right now, I have a big drill bit, a tube and I am making concept tests with a heat gun, nothing very serious, so the model probably will change (the first peltier cell arrived broken :( so ... 1 extra month waiting for other one)