Installing a chromacor in the drawtube

Would it be possible to install a chromacor in the draw tube? I was
thinking it might work by making a ring which is threaded on both the
inside and the outside & threading a portion of the inside of the
draw tube. The chromacor would thread into the ring, the ring would
thread into the drawtube.

Spacing of the chromacor from the focal plane of the eyepiece is somewhat critical, but I think that could be dialed in by how far the ring is threaded into the tube & the use of different 1.25 adapters.

Does this seem like a workable idea?

thank you, Bill

Hi Bill,

A while back John Biretta e-mailed me info about a semi-permanent way he found to install his chromacor inside the draw-tube. Wrap few layers of painter's tape around the chromacor until it's a tight fit inside the tube. As simple as that. Obviously, you need to make sure that the diagonal is perfectly square with the tube. He sent me few pics. Here is one, I'm sure he wouldn't mind me posting it, he is always happy to help others.

oren.

Attached Image:

Oren & John; Thank you for the tips & the photo. Since I'm using a 2.7" AP focuser and the difference between the diameter of the tube and chromacor is so great I think I'm stuck with trying to thread it in place. However, because of all the baffles machined into the draw tube, I might need to replace the drawtube or use a different focuser all together.
I'm not a machinist, but from what I can tell we have some talented mahinists/astronomers on the board. I really like the idea of making the chromacor a permanent part of the scope if it is doable.