VACS:Projects:LPS:Issues
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;2006-12-22: The creation of several single sided boards failed. The clear reason is unknown. I have used different insolation time and the boards were not good enough. I suspect this is because the printed board were old (bought in 2001 or so) and the UV light has less effect on them. | ;2006-12-22: The creation of several single sided boards failed. The clear reason is unknown. I have used different insolation time and the boards were not good enough. I suspect this is because the printed board were old (bought in 2001 or so) and the UV light has less effect on them. | ||
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| + | ;2007-07-28: I've succeeded in creating 4 single sided boards (LPS supply, positive rectifiers, positive outputs and positive voltage regulator). Before doing the final boards I checked on small scratch boards. This time I've used a transparent slide for the insolation (instead of a laser print on 80g paper). The printed board failed when the insolation time was 2mn and when I used only one slide. I tested with 2 slides, it was better. With 3 transparent slides that were above each other, the insolation succeeded. The insolation time was 1mn30, revelation 1mn. | ||
Revision as of 22:36, 28 July 2007
This page keeps track of the issues found during the conception or building of LPS.
Software
- Must have a GNU Ada compiler for ATmega16 (GCC 4.1 is the target)
Hardware
- 2006-12-22
- The creation of several single sided boards failed. The clear reason is unknown. I have used different insolation time and the boards were not good enough. I suspect this is because the printed board were old (bought in 2001 or so) and the UV light has less effect on them.
- 2007-07-28
- I've succeeded in creating 4 single sided boards (LPS supply, positive rectifiers, positive outputs and positive voltage regulator). Before doing the final boards I checked on small scratch boards. This time I've used a transparent slide for the insolation (instead of a laser print on 80g paper). The printed board failed when the insolation time was 2mn and when I used only one slide. I tested with 2 slides, it was better. With 3 transparent slides that were above each other, the insolation succeeded. The insolation time was 1mn30, revelation 1mn.
