Recently, when looking for a small frit maker, no shop had one
in stock. Having heard of making one
from plumbing pipes, I went in search of material. I came across stainless steel pipe and caps.
The practical size seemed to be 50mm. Short sections of threaded pipe were available with matching caps. That forms the containment cylinder.
A threaded 25mm pipe and cap can be fitted loosely into the
larger one, and so forms the plunger or piston.
There needs to be a handle. It could be a turned piece of wood to fit the inside of the pipe. In this case, I obtained a reducing connector to fit a 12mm pipe to the plunger and topped it with another cap.
The completed frit maker |
Galvanised pipe would be cheaper but carries the possibility
of introducing zinc into the frit.
Stainless steel risks introducing non-magnetic particles into the frit. As I sieve out powder from my own frit making
before washing, I am not too concerned about steel contamination. If you want powder, use uncoated mild steel so
the contamination can be drawn out with a strong magnet.
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