Re: [OT]: How to make PCB at home? by Lawrence Glaister .

The pcb photo resist is not very sensitive... many minutes of exposure needed with typical UV sun lamps. I have been tossing the fiber delivery method over for quite a few years... I would love to get hold of a UV laser source to see if the writing speed could be made a reasonable value.... anyone out there have access to a laser lab at the university and could try some trial exposures on standard sensitized pcb material? Standard photo methods do not need nearly the same exposure times. Maybe a white led probe and standard film would work in a plotter. The downside is the darkroom chemicals required to develop the film. Big laser available? How about the cnc approach by vapourizing the copper right off the board. ======================================================= Lawrence Glaister VE7IT email: @spam@lgEraseMEjfm.bc.ca 1462 Madrona Drive http://jfm.bc.ca Nanoose Bay BC Canada V9P 9C9 ======================================================= {Original Message removed}