Re: [CAD_CAM_EDM_DRO] 2D printer-real parts

Ian Wright wrote:

>
> The other way which springs to mind and which could, perhaps, be more
> practical, would be to use a high intensity UV source and fibre optic to
> work on metal coated with photoresist. Mount the end of the fibre(s) on the
> printer carriage and lead them away to a high intensity UV lamp - perhaps a
> kind of arc lamp? (dangerous source if not well shielded!). It would
> probably be difficult to get the exposure correct as you only really have
> the light intensity to work with but, in theory, it should be doable and you
> could then just develop the coating with NaOH and etch like any PCB.
>
> Ian
> --

If anyone really wants to try this I have a bottle of Kodak KPR2 sitting here. Probably still good at least it has not polymerized.

Thins well with toluene.
Try a mercury vapor lamp with the outer shield removed as a light source. Remember this exposes the 253.6 nm line which is intense
and can do eye damage.

Dave