search

PaxInstruments / t400-electronics

Electronics for the Pax Instruments T400 temperature datalogger
20 stars 9 forks source link

Make LCD cable indentation #50

Closed charlespax closed 9 years ago

charlespax commented 10 years ago

Make an indentation on the side of the PCB for the LCD cable to rest, so it cannot get pinched between the PCB and enclosure.

Ref. https://github.com/PaxInstruments/t400-electronics/issues/49

charlespax commented 9 years ago

Something in this area.

screen shot 2014-12-06 at 01 13 46

charlespax commented 9 years ago

We should seek guidance from the PCBA house on how this will work out in the panel.

Maybe in the panel two boards can mate bottom edge to bottom edge. The panel can be cut between the boards with a V groove. Then a slot can be milled down the V groove (or milling then V groove cutting). I wonder if they're able to rotate a pick and place pattern without having to reprogram the entire board.

Here's a picture of what that might look like. img_20141212_110422

For reference, here is how the notch looks now on a single PCB. screen shot 2014-12-12 at 10 57 21

samchoy88 commented 9 years ago

It is a good idea to have panel two boards mate bottom edge to bottom edge and make factory easy to cut the slot by router. We should made this suggestion to factory and usually the panel are design by PCB factory and they will utilize the raw PCB completely. image

The PnP machine can handle any direction of the components (except flip it). And it should be no problem to have V groove on the tiny slot. (it is not similar to blinkyTile which has a big slot in between), see how they make PCB panel at below pictures.

image image

cibomahto commented 9 years ago

Just a note, this won't affect the price of the production in any significant way for the quantities this will be manufactured in, so I wouldn't prioritize it.

charlespax commented 9 years ago

That graphic makes sense. It will be good to give the option to the PCBA house. They can make the panels however works best for them.

And good call with the USB connector cutout. I think we should have the appropriate feature on our PCB design, so we know it will make it into the panel. Our design should be such that they only have to do panelization and not add specific features we need on the board. See https://github.com/PaxInstruments/t400-electronics/issues/94

charlespax commented 9 years ago

Okay, let's call this done.