Oven: Drying Filament Dispenser by random-builder

Last crawled date: 3 years ago

Used oven converted into drying filament dispenser.
Loaded with ceramic tile for safety and thermal insulation.
Consumes ~ 7W power in steady state at 50°C inside and 25°C outside.
Temperature range for continuous 24/7 operation:
PLA: 50°C - safe; 55°C - starts to stick; 60°C - spool fuses in 1 day
Nylon: 50°C - safe; 95°C - safe, dries 4x faster, consumes 3x more power;
therefore use same temperature of 50°C for all filament types, maintenance-free
Example usage with nylon which was initially stored at 25°C and 40% humidity:
criterion: from visible bubbles in the print to no steam bubbles in the print
3-4 outer-most layers become dry in 4-5 hours at 50°C, need to wait
inner layers dry continuously during print, no need to wait
1kg spool full drying time is about 10 days at 50°C
Parts:
1 x used oven with ~ 8Hx10Dx12L" inner space
8 x 4x4" ceramic tile on the sides
4 x 6x6" ceramic tile in the back
6 x 9x12" ceramic tile on top and bottom
1 x PC4-M6 socket on a side
1 x PTFE guide inside
Used with:
Turntable: Spool Plate
Hanger: Thermometer Bracket