About a year ago I posted a querie about using a UV LED or low power UV Laser to activate the resist on pre coated PCB using a CNC Rig.
At the time of posting a 400nM (40nM?) cost 45 English Pounds. the Laser module included a collminating Lens and a 5V active control circuit with a beam on/off 5V control/modulation input.
As i had no response, i shelved the idea. The only possible drawback would be slowing down the step speed to enable the setting of the resist.
Any thoughts on this concept/idea would appreaced
chester