2017-05-22 (M) Pi0 Laser Tag PiTagErrUs

Yesterday, it was discovered that the board, pictured on the left, had been printed as a mirror image which wouldn't produce a working board. On top of that, the files for making that board had been deleted.
Never delete computer files from something that has actually been built.
Newer files had been generated to make a more compact and efficient board but the layout was completely changed from this revision. These changes allowed for two board to be prototyped on a single slab of bare PCB. The length difference can be seen below where the new revision has been printed on curling yellow paper and is roughly 15% shorter.

Bad PCB next to an incorrectly printed transfer

After assembling one board some of the problems were identified so labels were added right to the copper layer. To avoid confusion, the traces were rerouted to the bottom of the board instead of the top.

There was a little confusion on my part about how to print a transfer correctly. A transfer is a mirror image of what will appear on to copper and that is a mirror image of what will effectively be the circuit when looking from the component side.

Correctly printed board to be transferred


The rest of the posts for this project have been arranged by date

First time here?

Completed projects from year 1 
Completed projects from year 2
Completed projects from year 3

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2017-05-16 (Tu)