Gas Cylinder Valve Indicator

prusaprinters

<p>Ever forget to close up your gas cylinders and then donate your bottle gas to the atmosphere? &nbsp;This project fits onto a 5-lobe Sherwood cylinder gas valve and provides an instant visual indicator if the valve is opened or closed:</p><figure class="media"><oembed url="https://www.youtube.com/watch?v=_jF6lgQ6Gdw"></oembed></figure><p>The design retains the 5-lobe knob style, making it bigger and easier to deal with when you have welding gloves on etc.</p><p>In this example, I printed the “inner valve handle” in green and the “warning color insert” in red. &nbsp;This will show “green” when the valve has been tightened, and red when it's open.</p><p>The “outer valve handle base” has pins to align with the top part, I use superglue to connect those two halves together, taking care not to get any glue on the rotating parts. &nbsp;I also put a little bit of grease over the moving surfaces to make everything turn smoothly, but that's optional.</p>