Radiator Bleed Key
thingiverse
A simple key to bleed the air out of radaiators. The hole is 5mm x 5mm which is correct for all of the radiators in my house. Instructions This is the first thing I have designed from scratch and printed on my new printer, so the construction is really simple. Just print and use. In my experience I had to tidy up the edges with a file before it would work propperly, but this might just be bacause my printer is not fully calibrated and some of the fill oozed out through the layers.
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