30 Sep '14, 11pm

Add CNC to your…Propane Tank??!?

I kind of agree though, the standoffs are plastic, the screws are open to the environment, zinc plated steel that are fairly coarse and it uses an off the shelf servo that lacks any kind of positional control or even awareness. Further, it has a limited torque range and a complete and utter lack of repeatability testing. All of these things would have been addressed in a commercially produced, properly engineered, mass produced gas valve. And the thing is, they are probably cheaper, in addition to being more reliable. When it comes to something like a gas valve, I personally think erring on the side of “make sure significant effort and testing has gone into ensuring this will work when called upon” is reasonable and appropriate.

Full article: http://hackaday.com/2014/09/30/add-cnc-to-your-propane-tank/

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