To 3D print replacement parts, search for an existing model first, then measure with digital calipers, model the part in a free tool like Tinkercad, and test-fit a cheap PLA version before printing the final part in the right material.
Teaching Tech, a YouTube channel that teaches 3D printing, walks through measuring a household part, modeling it in CAD and printing a working replacement. Zack Freedman, a YouTuber and maker, copies parts by photographing them from every angle and tracing the photos into dimensioned sketches.
Appliance knobs, battery covers, shelf pins and clips are among the most common prints.
Common Replacement Parts People 3D Print
- Appliance knobs (washers, dryers, stoves)
- Battery covers and remote backs
- Shelf pins, clips and brackets
- Drawer slides and cabinet bumpers
- Vacuum and tool clips
- Faucet washers and spacers
- Car trim clips (see 3D prints for car)
How to 3D Print Replacement Parts, Step by Step
- Search first. Look up the brand and model plus “replacement” on MakerWorld, Printables or Thingiverse.
- Measure with digital calipers: outside, inside and depth.
- Model in free tools like Tinkercad, Fusion or Onshape. Some people trace photos of the part.
- Test-fit in cheap PLA first.
- Print the final part in the right material.
- Iterate: it often takes two or three tries.
Choosing the Right Material
Prices checked on Amazon Oct 16, 2026. I may earn a commission from links, at no cost to you.
| Part | Filament |
|---|---|
| Indoor, light use | PLA |
| Heat, water, or flexing | PETG or PCTG |
| High heat or impact | ABS or ASA (enclosed printer) |
| Rubber feet and grips | TPU |
Best Printers for Replacement Parts
| Printer | Price (Amazon, Oct 16, 2026) | Why it fits | Link |
|---|---|---|---|
| Bambu Lab P1S Combo | $549.00 | Enclosed, prints ABS and ASA like many original parts | Check price |
| Bambu Lab A1 | $299.99 | Accurate and cheap for PLA and PETG parts | Check price |
| Creality K1C | $369.00 | Enclosed; prints carbon-fiber filament for stiff parts | Check price |
What YouTube Creators Found About 3D Printing Replacement Parts
These are findings from popular YouTube videos, paraphrased from their transcripts and credited. They are the creators’ experiences and claims, not my test results.
- Teaching Tech (Teaching Tech: “Replace broken items around the house with 3D printing”) gave a step-by-step guide to measuring a broken household part with calipers, modeling it in CAD, and printing a working replacement. He also tried a resin version of the same bracket.
- Zack Freedman (Zack Freedman: “You can copy and print perfect spare parts! (Legally) (Probably)”) showed his method for copying parts: photograph the object from every angle, trace the photos into dimensioned sketches, and test-fit thin prints in cheap white or clear PLA before printing the final part in a proper material. He noted that copying an ABS original in a different plastic can change how it flexes.
- On Reddit, one r/functionalprint user designed a replacement knob for a 15-plus-year-old Kenmore washer in about an hour in Tinkercad. Another commenter said their old appliances are kept running by printed parts because originals are unavailable, slow or expensive.
Frequently Asked Questions
Can I 3D print any replacement part?
Many plastic parts, yes. Avoid safety-critical parts such as gas, electrical and load-bearing parts.
Do I need CAD skills?
Search first. If you can’t find a model, free Tinkercad is enough for simple parts.
What tool do I need to measure parts?
Digital calipers. They are inexpensive and very useful.
Is it legal to copy a part?
Printing a part for your own use is generally fine. Selling copies of branded designs can raise legal issues.
Sources
- Teaching Tech: “Replace broken items around the house with 3D printing”
- Zack Freedman: “You can copy and print perfect spare parts! (Legally) (Probably)”
- r/functionalprint: Designed a replacement knob for my washer
- Amazon product listings for the printers linked above, October 16, 2026
Related: Bambu Lab A1 vs P1S | PLA vs PETG for Beginners | Bambu Lab A1 Maintenance Guide
Notes and disclosure
Note: Printer prices come from Amazon listings on October 16, 2026 and change often. The ideas below come from popular YouTube creators and Reddit threads, credited where used. My own hands-on results will be added after my planned test prints.
Affiliate Disclosure: If you purchase an item through the links on this page, I may receive a commission, at no additional cost to you. Thank you for supporting the channel.