03-21-2018, 10:36 AM
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Craftsman
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Join Date: Jun 2008
Posts: 103
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Quote:
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Originally Posted by PaulK
Next, I peeled and sanded the 28mm tube to fit up to a 29/240 Aerotech case. Now, I need to figure out how to handle retention, as I don't have the original plastic retainer. Any ideas? (Yes, I know friction fit could be used, but let's keep the discussion to positive retention).
It's easy enough to retrofit retention into plywood rings, but the plastic is far too thin for threaded inserts. I can imagine some sort of metal retainer that uses the existing slots, or the unused TTW fin slots, but nothing concrete yet.
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Hi Paul,
I used to have a few extras of the red plastic NCRBE retainers that fit that ring. I never used them on my personal builds, but when I recently inherited a Big Brute set up for that retainer, but missing the retainer, I turned the workshop upside-down looking for them. No dice; must've dumped them off at some point.
Solution? The tried and true screw and z-clip deal. I found the centering ring's plastic to be thick enough to be drilled and tapped sufficiently to hold force. I also tried a self-threading machine screw. Both worked great!
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