Hi,
Here is a work I finished some months ago, it's my version of the "Home made engraving machine" from Shaun Hughes (
see his channel )
His channel has inspired many, and my personal contribution goes to the pedal commanded air flow control and on/off switch.
I have an article on my Web site :
www.labellenote.fr
See for instance the hand-piece :
The modified compressor :
And the details of my air flow valve :
And here is the video :
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