Hi Neil,
If you use the old Johnsons paste wax as a mold release
with 2hr. set epoxy, you shouldn't have any trouble.
2 hr. epoxy shouldn't be mixed more than 1/2 oz in a small cup
or it'll boil and foam.
Use the existing nut to make a thread model, I wouldn't
chance it on the dremel itself.
John
--- In
Homebrew_PCBs@yahoogroups.com, "Neil Baylis" <neil.baylis@...>
wrote:
>
> Is it possible to make or buy a nut that the front end of the Dremel
> will screw into? I've been looking, but so far haven't been able to
> source one. I've been trying to think of a way to make a casting of
> the thread, but it seems tricky.
>