
Files (2)
Published material guidance; still check heat, UV, load, and printer compatibility.
A planning starting point only; wall count, orientation, and geometry often matter more than infill.
Choose the needed variant, then slice it for grams, cost, and print time.
Saved setup guidance is used for material, infill, support, and per-file recommendation text; editable numbers are planning estimates only.
Reference shelf
Recommended filament for this print
Product references matched to the published material guidance. Confirm diameter, heat resistance, colour, and printer compatibility.
| Referenced item | What to verify | Price & availability |
|---|---|---|
| PETG filamentAmazon · Affiliate link | Amazon product page for 1.75 mm PETG; confirm colour, spool size, print temperature, seller, and delivery region. | Check price at Amazon |
| ASA filamentAmazon · Affiliate link | Amazon product page for 1.75 mm ASA; use an enclosure and suitable ventilation, and confirm seller and regional availability. | Check price at Amazon |
Affiliate disclosure: if you buy through an eligible link, 3DPrintedCarPart may earn a commission at no extra cost to you. As an Amazon Associate I earn from qualifying purchases. Confirm product specifications, compatibility, seller terms, and vehicle safety before ordering or using anything. Amazon may redirect you to a nearby supported store; otherwise the original Amazon.com page remains available.
Unsure which one fits? Read the automotive filament guide.
1978 Porsche 911 Door Lock Knob
Print this part
Use the part context as a starting point, then confirm geometry-dependent values in your slicer.
Files
2 hosted model files
STL
Material start
PETG or ASA for durability and heat resistance
Saved part guidance
Strength start
20-30% infill for a balance between strength and weight
Saved part guidance
Orientation / supports
verify in slicer
Exact totals
Slice for grams + time
Model geometry and final settings determine both
Vehicle exposure
Cabin/interior use; avoid high-heat zones
Open the STL, 3MF, or OBJ model in your slicer before printing. Exact grams, time, and final support placement come from the actual slice. Test-fit and heat-check the part before installing it in a vehicle.
License & use
The file license permits commercial reuse, subject to any applicable attribution or share-alike terms. License status does not verify vehicle fitment, OEM rights, design patents, or safety.
Shared by
3DPrintedCarPartDescription
Modeled from a pre-existing knob from my 1978 Porsche 911. Interference Fit of 0.25mm between knob and beauty cover insert.
Compatible Cars
Originally published on thingiverse.com by Joseph DeMartino (AirPCarWaterPC) · License: CC BY-SA
Share whether this print actually fits a real car. Installed photos and material notes make the catalog more trustworthy.
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