View Single Post
  #58  
Old 01-02-2020, 08:58 PM
5x7's Avatar
5x7 5x7 is offline
Sometimes collector
 
Join Date: May 2008
Posts: 1,786
Default

Quote:
Originally Posted by LeeR
I use threaded inserts with no issues. But I think you’d find that a faster curing epoxy makes it simpler. JB Weld is super strong, but for something like this, it means lots of cure time that can cause runs.

I even used threaded inserts on clusters like 3x18mm in a BT-60. A normal threaded insert won’t fit, so I use a clevis from the RC airplane world. I clip off the arms and epoxy in the threaded barrel piece. The engines are held in by a 4-40 cap screw and washer. (Washer not shown in picture).


This was a great tip. I was stalled by the holidays but getting going again. I was staring at the 29mm mount thinking about retention options, including test fitting an Aerotech 29mm screw on retainer, which looked terrible with the vanes. Two of clevises (Clevi?) nestled between the vanes drowned in expoy and retention will be sorted. They are on their way from Great Planes.
Reply With Quote