AnswerHardware
How to print a gear that lasts
A numbered gear recipe (material, teeth, perimeters, infill, orientation) plus the 2022 Polymers wear test where PETG gears outlasted PLA by 22.3 percent and ABS by 37.
Tagged “petg”
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AnswerHardware
Can 3D printed parts hold water pressure?
Published pressure results for printed parts: Prusa Research's 20 and 30 meter dives, a forum test at 5 to 8 bar, and the O-ring rule for threaded fittings.
AnswerMaterials
Which filament should you use for a replacement part?
A decision table from what the broken part faces (heat, sun, load, chemicals) to a material class, with HDT, impact and absorption figures from manufacturer data sheets.
AnswerHardware
Heat-set inserts or captive nuts for printed parts?
CNC Kitchen's M3 test in PETG: a bottom-pocket nut held 166 kg against 119 kg for a heat-set insert, but the insert took more torque. When each fastening wins.
AnswerMaterials
Which filament is waterproof? Materials for parts that hold water
PLA, PETG, ASA, PP and PC compared for holding water: the perimeter count Prusa needed, data-sheet water absorption, heat limits and outdoor use.
AnswerMaterials
What temperature to set the iron for heat-set inserts in PLA, PETG and ABS
Iron temperature per material for heat-set inserts: about 225 °C for PLA, 245 °C for PETG and 265 °C for ABS, from CNC Kitchen's printing temperature plus 10 to 20 °C.
AnswerHardware
Do heat-set inserts work in PETG?
Yes: brass heat-set inserts hold in PETG at an iron temperature of about 245 °C, and the part stays rigid to a glass transition near 80 °C. Expect stringing from the tip.
AnswerMaterials
Which filament survives a dishwasher?
Manufacturer HDT and Tg figures for PLA, PETG, ABS, ASA, nylon, PC and PP set against the 150 °F dishwasher sanitize rinse, with margins in °C.