YouTube video by 3DShoemaker
Notes
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PETG
- harder than HDPE
- thin, sharp nails work fine
-
infill: 5 mm wall thickness
- solid body or joint
- default: number 8 deck screws or ⅛″ dowel pin
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Prusa i3 MK3s+ “ideal 3D printer for making shoe lasts”
- can use PLA, but if hammering and using nails, use PETG
- less brittle
- heals a bit more when nails removed
- 0.3 mm quality fine with 0.6 mm nozzle
- default 0.4 mm nozzle, but not high precision
- for speed: gradually dial up max volumetric speed often set low for PETG
- gryoid infill
- can try infill 5-25
- suggest PLA for PETG for hardware spring, for stiffness, 100% infill
- can print springs in batches, since don’t change between last designs
- use a build enclosure
- from Prusa or IKEA Lack table