How reverse engineering a part works
- Measure every feature with calibrated gauges, CMM, or optical inspection
- Identify the material and any heat treat or finish
- Account for wear: rebuild the original design intent, not the worn geometry
- Confirm fits against the mating parts
- Machine a first article, test it, then create a drawing for future orders
What to bring
- The original part, even if broken
- Mating parts or the assembly, if you can
- Photos of where it's installed
- Anything known: equipment make/model, load, temperature, cycles
Repair or replace?
Sometimes the fastest fix is repair: re-machining a worn surface, sleeving a bore, or rebuilding a feature. Other times a new part is cheaper and more reliable. A good shop will tell you which before you commit.
Don't get caught twice
Once the replacement works, keep the new drawing and consider a small stock of spares for parts that keep equipment running.
Frequently asked questions
Can a machine shop make a part without a drawing?
Yes. The shop measures the original, identifies the material, and machines a replacement, often creating a drawing so the part can be reordered.
Have a part like this? Send the print and an engineer will reply, typically within 48 hours.
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