All frame work was mig welded and made from either 2"x2" tube or 1"x2" steel tube.
Step 1: Welding Frame Top
Step 2: Welding Frame Bottom
Step 3: Welding Frame Bearing Support
Step 7: Idler Sprocket
Step 9: Welding Frame Rotary Mount
Step 11: Rotary Main Shaft
Step 13: Primary Chain
Step 15: Main Rotary Frame Work Completed
Step 18: Main Frame Done
Step 20: Heat Shield Installation
Step 21: Sheet Metal
I covered the walls by welding sheet metal to them.
Step 22: Insulating
I insulated it with compressed rock wool that I bought from the hardware store
Step 24: Exhaust for Excess Heat
Step 25: Fibre Glass Door Seals
I used high temp silicone to glue the seals onto the frame this helped the heat stay in.
Step 26: Insulated Machine Ready to Run
I used a 1750rpm motor and a 50:1 gear box , the unit is heated by a diesel space heater that brings the internal heat to 400 deg F in about 10 min .
Step 27: 50:1 Ratio Motor and Gearbox
Step 28: First Part Out of Machine
This part used 5lbs of low density poly ethylene pellets at 400deg F for about 40min heat time and 10 min cooling time .