Threading Problems solved (I think)

[adamsgt]

If it were me, I definetly would not drill and tap the spindle.
I would make a nice slide fit of the aluminum onto the spindle.
I would make the aluminum sleeve (spider) with a 1/4 to 3/16 wall thickness and then drill and tap for 1/4-20 TPI at the 90° positions and then use 4 set screws to hold it on the spindle.
I would drill and tap the other end in the same fashion and these are where your adjustment screws will go.
pg

Blake, that's what I had in mind. That also seems to be the consensus from the forum.

My wife has this crazy idea to go to the Galleria in Dallas tomorrow so I think I'll hit the Fort Worth gun show. She may be able to get back by Tuesday.

 

[piniongear]

That sounds like an idea that will work for everyone!
Have a good time and weekend....... Blake