We currently use a Huntron prober to test circuit boards and I would like to build a "Bed of Nails" to use with Labview to do detailed board testing. PIC will be involved somewhere. Has anyone built a tester from scratch or from a commercial frame? Any tips, or traps? boards are typically 6 X 8" and contain 10 to 15 16 pin DIP chips and 15 to 25 PTH diodes and resistors. All boards are double sided with components all on one side with an obsolete 22 pin board connector on one end. I think under 100 pins would cover my needs but that number may go up if the tester works. Looking to develop a tester for one board and expand it to test several different but related boards. Thanks in advance! Tom -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist