Precious Plastic Extruder

Hint: This work builds upond the precious work of Precious Plastic. We are indebted here to Dave Hakkens. See https://preciousplastic.com/en/videos/download.html

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BOM

• Wood bit - 1" - [1]. 7/16" shank, as in 1/2" version
• Pipe flange - Menards $5 - [2]
• Pipe flange - pack of 10 - Amazon - $4 ea - [3]

CAD

See https://github.com/OpenSourceEcology/Extruder

BOM Candidates

• Small high torque hydraulic motor - [4] $50
• Type K Thermocouple - [5] - $7
• SSR - [6] - $7
• 1" flange - $4 on amazon - [7] or $5 menards - [8]
• PID Controller - $23 - [9]
• PID with SSR + thermocouple - $14 - [10]
• [3] band heaters - 35x45 mm - $4 + SH - [11]
• [1] band heater - 1.75" for next coupler
• 1-3/4" coupler - [12]

Notes

• 1.75" is 45 mm
• 35 mm is 1.38 in
• 40 mm is 1.57 inches
• OD of pipe union
• 1.25" and 1.75" nozzle heaters are available easily - [13]