So a while back, I managed to pick up a TSI Wax Pen in a trade. It’s
cool and retro looking with it’s 80’s style “radio shack control
box.” It looks like this:

I thought it would be interesting to use it to build up some retro
wax melt drop style models for casting. I found it again when
cleaning a box of stuff and thought I’d try it, but I can’t figure
out how it exactly works.
Does anyone have an old manual or info on how this TSI Wax Pen
works?
From what I’ve figured out, it looks like there is a plunger that
lifts a pin or needle type valve in a feed tube on the tip. The wax
seems to go into the bigger hole on the back of the head next to the
plunger control.
I would assume wax melts, fills a resivoir inside the unit and you
open and close the wax feed with the plunger. Seems straight forward.
But alas, while the unit gets hot and melts wax, I can’t get it to
come out…
Eventually it wants to overflow the wax feed out the top. I think an
air bubble contributes to this overflow, but the wax IS melting. The
tip is hot to the touch, etc. Soooo close, what am I missing?
thanks in advance for any suggestions to help bring this retro tool
into useful shop production!
Steve Shimatzki
Toledo ohio