NASA ACES suit disconnects

Absolutely polish before anodizing. The anodizing will not polish, so if you want the pieces to look shiny I would polish. The buttons will likely want to be matte.
I'll have a go polishing them. I agree that the buttons should be matte, certainly look that way on the reference photos.
 
Here's a first go at some polishing.
Bearing ring polished, rest of the assembly had some scotch-brite used on it to clean up some of the machining marks.
As far as I'm concerned it was successful, I will only polish the visible surfaces, seem a bit pointless to polish something that will be covered up.

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I am now planning on polishing before anodising. Where do you think the radius should be larger?
Yeah, Imgill is reffering to the mounting ring. The OD and ID are the same. From the looks I would also suggest to make the radius larger. Maybe 2x larger than in my model.
 
Yeah, Imgill is reffering to the mounting ring. The OD and ID are the same. From the looks I would also suggest to make the radius larger. Maybe 2x larger than in my model.
The suit / fabric clamp ring, OD. (I can't see the ID)
One thing I have learned from making this hardware, is the edge radii are always larger than they look.

Many Thanks both

I have done some work to make the radius larger as suggested, definitely improved.

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Here's some photo showing the installation of the spring and grub screws into the locking tabs, a little fiddly but not as bad as I expected the worst part was tapping the M2 thread in the locking tab, I didn't enjoy doing that, thankfully the parts were all okay.

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Step 1 insert the grub screw the place the spring into the slot keeping the grub screw below the surface.
Step 2 slide the locking tab into position with the hole and the grub screw are in line.
Step 3 tighten the grub screw so that the locking tab slides freely and doesn't fowl on the bottom of the slot.

Here from the inside you can just make out the grub screw visible.

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Whole setup works really well, once again many thanks to antarusfree for his excellent CAD modelling without whom this wouldn't have been possible.
 
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