"Gunner" wrote in message
...
On Sun, 12 Mar 2006 15:42:07 GMT, RoyJ wrote:

Nice ASCII drawing!

.25 mm interferance (about .010") is getting close to the max you are
going to be able to press in PVC. ABS would be much higher. I think I
might do some experimenting with some samples at .5mm, .75mm, etc, see
where it fractures, and run about half that. Heating both parts to 200F
to 250F (100C to 125C) might allow an easier fitup as well as a much
tighter press.

Getting sealants/glues that like both PVC and brass is somewhat
problematic. If press fitting will do it, stick with that.


One might also consider knurling the part with a straight knurl as
well. This acts as teeth of course and helps keep the part from
spinning in the future.

Gunner

Thanks for the ideas guys - with yours and the other guys replies I've got
some thinking and testing to do.

Glad you liked the ascii are Roy

regards
rob