Been working hard. Most of the modification is done. Cabling is nearly done. All I need is to put new 12v pump, flow meter, water level sensor and finish programming Arduino which takes care of reading, displaying and reacting for events.
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.