Tagged “reverse-engineering”

Guide·Hardware·September 21, 2026

3D printing replacement parts: what works, what lasts, what is legal

Printed parts are weakest across layers: Bambu Lab PETG Basic pulls 51 MPa in XY and 35 MPa in Z; Prusament PETG's interlayer adhesion is 18 MPa against 47 MPa flat.

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Answer·Hardware·October 13, 2026

Can you 3D print old car parts?

Mercedes-Benz Classic 3D prints PA12 sunroof rollers for the W 123. What carmakers print for classic cars, and which old trim parts a home printer can copy.

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Answer·Hardware·October 13, 2026

How to 3D print a replacement part

Seven steps from broken part to fitted print: check it is legal, find a model, measure to 0.01 mm, add 0.15 to 0.40 mm clearance, pick a filament, orient it, test-fit.

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Answer·Hardware·October 13, 2026

How to match tolerances on a 3D printed replacement part

Design in clearance instead of copying the measurement: 0.15 to 0.20 mm for a snug fit, 0.20 to 0.25 mm sliding, 0.30 to 0.40 mm loose, then check with a tolerance print.

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Answer·Hardware·September 21, 2026

How to measure a broken part for 3D printing without a scanner

A digital-caliper procedure for outside, inside, depth and step measurements, with Mitutoyo's ±0.02 mm accuracy set against Prusa's 0.3 mm printer tolerance.

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