Hi,
I've recently made some acid resistant PCB holders using a 10 mm perspex
sheet cut into 16 mm wide strip. Here are two pictures
http://members.optusnet.com.au/~eseychell/pictures/pcb_holder_1.jpghttp://members.optusnet.com.au/~eseychell/pictures/perspex_spring_clamp.jpgThere is a trick to making it. I first cut a strip of perspex 10x16mm. Then
drill a 3 mm hole about 30 mm from the end. A cut is made with a hacksaw
down the middle to reach the hole. The width of the cut is only about 1 mm
and not very straight. I then soften the end with hot air gun so the
perspex is like stiff rubber. A PCB is forced into the slit. Then a metal
spring clamp is placed over the end so it forces the perspex even tighter
over the PCB. Now for the tricky part, gently heat the perspex around the
PCB so if goes soft and conforms to the shape of the PCB and closes any
gaps (except for the 3 mm hole). When cooled remove the clamp and the
perspex should be a tight fit over of PCB. In the above picture, the two
perspex holders hold a 300 x 200 mm PCB quite firmly.
Adam