n2zon
Cast Iron
- Joined
- Apr 29, 2014
- Location
- Dutchess County NY
I know someone working on a prototype that requires an aluminum part with a very smooth finish to reflect light.
The part requires six radial, stepped holes with 45* steps in a center-drilled disc. Smallest ID is .250". The surface finish inside the stepped holes likely needs to be in single digit microns, perhaps as fine as 2 microns. The ID tolerance is quite loose (he says +/- .010" is better than he needs). Flatness is not critical, either. I'm waiting on confirmation of the wavelength of the light to be reflected.
He knows it won't be cheap.
I know some of you work in microinches...who can do this sort of work? I'd like to put him in touch.
Personally, I would be fascinated to even know how it could be done!
Edits:
- Correct number of radial holes (6, not 4; my error).
- Add info about flatness.
- Added placeholder for info about wavelength.
The part requires six radial, stepped holes with 45* steps in a center-drilled disc. Smallest ID is .250". The surface finish inside the stepped holes likely needs to be in single digit microns, perhaps as fine as 2 microns. The ID tolerance is quite loose (he says +/- .010" is better than he needs). Flatness is not critical, either. I'm waiting on confirmation of the wavelength of the light to be reflected.
He knows it won't be cheap.
I know some of you work in microinches...who can do this sort of work? I'd like to put him in touch.
Personally, I would be fascinated to even know how it could be done!
Edits:
- Correct number of radial holes (6, not 4; my error).
- Add info about flatness.
- Added placeholder for info about wavelength.
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