marked23
Key Veteran
Location: Lynnwood, WA
| I'm building my head tonight. I got the 3D insert kit. It contains replacement inserts that are white delrin instead of the stock black ones.
The spindle hole in the inserts is a bit smaller, by design, to keep the feathering spindle from moving around. This makes for a stiffer head.
Three things I noticed:
1) My white inserts barely fit into the head. I had to force one in and the other one would not go at all until I sanded it down to a smaller diameter. The stock black inserts fit nicely.
2) This system of twin o-rings for the dampners is familiar to folks who have built MA heads. The o-rings didn't last long in MA heads. They eventually went to a custom shaped single piece of rubber and that works pretty good. I haven't measured, but I'd bet the MA part would fit right into teh Avro head.
3) The white inserts I have make the feathering spindle ride up a little higher in the head.. What I mean is that I would expect the hole in the insert to line up straight down the middle of the head. The job here is to hold the spindle in place, but I don't see the logic in holding the spindle in place, a little higher than on-center. Anybody else have the white inserts and notice this?
-Mark |
