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

[FredA]

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]

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

Chris

 

[jderimig]

natkinsey at gmail dot com

Upscale CNC

 

[mpitfield]

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]

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.

 

[FredA]

OK - thanks - emailed Nat

 

[Nathan]

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

 

[Binder Design]

I know a guy 50 miles to your south that can do it.

 

[Tonimus]

Upscale CNC did these for me:

75mm center, 29mm outboards:


75mm to 4x29mm adapter: