Thingiverse
Solenoid Graver Controller
von Cholfatyarh
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I do own an air pressure graver system, but sometimes I would like something that is more portable - easy and quick to set up and without carrying around a compressor etc.
Some people have already been experimenting with DIY gravers made with solenoid valves. Those operate at 12V and will not drag a lot of power.
The resulting system is lightweight and easy to transport and setup.
I have written the code so that a maximum frequency of about 60Hz should be possible, which yields 3600 strokes per minute.
My lab PSU shows that during operation the graver will draw a bit less than 1A power, so given that the solenoid I use in the handpiece is rated at 23W (which at 12VDC computes to something just below 2A) a 12V/2.5A power supply should be fine.
The Arduino could, in theory, control up to 3 separate handpieces which would make this device also nice for a multi-seat workbench when it is expanded to the maximum capacity.
Some people have already been experimenting with DIY gravers made with solenoid valves. Those operate at 12V and will not drag a lot of power.
The resulting system is lightweight and easy to transport and setup.
I have written the code so that a maximum frequency of about 60Hz should be possible, which yields 3600 strokes per minute.
My lab PSU shows that during operation the graver will draw a bit less than 1A power, so given that the solenoid I use in the handpiece is rated at 23W (which at 12VDC computes to something just below 2A) a 12V/2.5A power supply should be fine.
The Arduino could, in theory, control up to 3 separate handpieces which would make this device also nice for a multi-seat workbench when it is expanded to the maximum capacity.
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