Hello fellow gEDA/PCB users, I would like to fit my design into the form factor from an existing gadget so that I don't have to invent my own mechanical design and can utilise a ready-made enclosure. This means that I need to carefully measure out the existing board in order to reproduce its mechanical form factor. Here is my question to the list: what level of measurement precision is required to make a generally acceptable fit of the form factor? Will a metric ruler with mm ticks be sufficient, or would I need something finer? I don't know if the form factor I'm trying to copy was originally designed as metric or inch-based.
The mechanical aspects that I need to measure and reproduce in my design are: * Board dimensions and shape. It is shaped like this (read in a fixed width font): +----------------------------------------------------------+ | RJ45 RJ45 AC mains | | connector | | | | | | +----------------------+ | | | | | | | | | | | | | | | | | | | | | LEDs | +-----------------------------------+ I guess such a board is fabbed as rectangular, then a corner is cut away, right? * Location and drill diameter of mounting holes. * Location of some connectors along the back side. The existing board has two RJ45-style jacks and a "kettle plug" AC mains connector, and mine will have identical connectors in the same locations. The existing board also has a block of 4 RJ45s stuck together (Ethernet hub), but mine will have a DB25 in its place. The DB25 is smaller than the 4 RJ45s, so I'll have a little bit of wiggle room for it. * My board will have some surface mount LEDs on it, and I want to put them exactly where the existing board has its LEDs so that they are visible when my board is put into the existing enclosure. I would appreciate any advice on how much precision is required to achieve what I've just described. TIA, MS _______________________________________________ geda-user mailing list geda-user@moria.seul.org http://www.seul.org/cgi-bin/mailman/listinfo/geda-user