Fine Gauze

[Speedy Builder5Participant @speedybuilder5]

Small filters.

[Speedy Builder5Participant @speedybuilder5]

I "lost" my piece of fine brass gauze to make a water filter ahead of a steam injector. The workshop gremlins obviously wandered off with it!

However I am now jubilant as I found a disc or two of stainless gauze recovered from defunct cafetières. Its easy to soft solder with a 25watt soldering iron. Use phosphoric acid as the flux (Jenolite liquid rust killer).

To make a 3/16" diameter filter, cut a piece off the disc and wrap around a 3/16" copper tube (dirty tube is best). Hold in place with a bit of cotton thread. Slide about 1/4" length off the tube and solder the joint. Slide it all off and put it back on the other way around and repeat, slowly slide each 1/4" length along and solder until done.

[Tim StevensParticipant @timstevens64731]

An alternative tube – unaffected by solder – is fibreglass – as used in the flexible tent poles which are threaded through slots in the tent.

Just a thought

Tim

[DMBParticipant @dmb]

Speedy, well done!, good clear instructions like LBSC. Got any more good loco build tips?

Come on, spill the beans as the great man used to say.

John

[DMBParticipant @dmb]

Tim, do you mean a piece of figlass thread poked thro' the holes?

[Tim StevensParticipant @timstevens64731]

DMB: No – the tubes used as internal tent-poles are made of fibreglass, and so are non-solderable and heat resistant. Just what you need to wrap a tube of gauze around for soldering. I make a distinction between fibreglass – a composite of resin and glass, and glass fibre – which has no resin holding the strands together.

Some types of greenhouse watering systems also use the same sort of fibreglass tubing.

Regards, Tim

[Author]

Posts