> I think I would like to just buy a nut that fits
> over the barrel. I could then drill a hole
> through the side of that nut and JB weld the
> thermister so it is in that hole sitting against
> the barrel.
Similar idea using a penny: [
forums.reprap.org]
My current configuration is a thermistor wrapped in PTFE tape and strapped onto the barrel using a piece of twisted wire.