K40 Laser Update 2

Slowly, but we are moving forward. Air assist with selenoid valve (madness!) and flow adjuster. Air provided from airbrush compressor via 1/8 BSP coupling. Cable/pipe chain, stepper cable holder – small things but still improvements. Testing 3″ 12V bilge fan with PWM motor regulator – on full power it sucks like… never mind, and is also a bit noisy. Half speed is enough to suck out any smoke from plywood cutting. 3D printed smoke manifold. Things left to do: cooling sensors cluster, switching panel.

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