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Where to get CNC'ed centering rings for clusters???

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FredA

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Who does CNC-cut centering rings for a five motor cluster?

Ideally I would want three made, each slightly different.

Rocket is 8" OD.
Desired material is 1/2" aircraft plywood.

The forward ring is just a CR with a central 98 and four outboard 38's located just within the ID of the BT so they clear the 3-fins.
The mid ring is really the aft ring as the aft-most ring is just a retainer. Would like a step in the OD so half matches the BT ID and the other half matches the BT OD to make a good thrust ring.
Would consider sending a stepped blank to CNC shop or perhaps forgoing the step if it's not possible.
The aft ring as stated above is just a retainer - want it thin - thin metal or thin ply would work, but must be <1/4" thick.

Anyone out there with the ability to make these or have a contact, please PM me.
Looking for precision - I can cut them myself with my router and circle template, but want more accurate centers than one-at-a-time done by hand would yield.
 

chrisudy

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You could try UpscaleCNC (Nat Kinsey) - wingarcher on the forums. The work I've seen from him is top quality.

Chris
 

jderimig

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natkinsey at gmail dot com

Upscale CNC
 

mpitfield

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You could try Nat Kinsey - wingarcher on the forums. The work I've seen from him is top quality.

Chris
x2 Nat has cut a bunch of things for me and he always have valuable input into the final design.
 

MikeyDSlagle

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I've had Nat cut some fins for me and they fit perfect. Good prices too.
More options-I think also Mike Fisher at Binder Design can do rings and maybe Tim at Wildmans.
 
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Nathan

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Nat did a really nice job cutting the fins for the upscale Onyx that I just started building. It's going to be epic.
 

Tonimus

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Upscale CNC did these for me:

75mm center, 29mm outboards:


75mm to 4x29mm adapter:
 
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