Building a UV PCB exposure box?
On 6 Apr, 12:03, "larwe" wrote:
On Apr 6, 6:05 am, "Aly" wrote:
somewhere. Would need a neat little case, cut glass, switches, bits bobs,
You need _quartz_ glass to pass all UV. Apart from this issue, all the
mechanical needs are satisfied by taking an old scanner and removing
the innards; put the UV tubes and reflector inside where the scan
mechanism used to go, and put your PCB on the glass, then close the
lid.
Many thanks for any input, I'm just looking for ideas and opinons really.
I'd also be half tempted to put in regular tubes too so that it can be used
as a light box.
Not advisable. If you're building a UV box, you should interlock it so
that the tubes cannot come on while the lid is open. There are fun
ways of going blind, and dumb ways... stick to the fun ways.
You don't need quartz, ordinary window glass is transparent to the
long-wave UV used for PCB exposure. The light isn't particularly
hazardous.
Leon
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