20220822 The Top Panel PCB rev 03 Improvement 02

20220822 The Top Panel PCB rev 03 Improvement 02

It sucked when there is no Job but the irony is, there is so much things to do. More so when I had to pick up things from where I left off.

This is the third revision or re-design of the Arky Top Panel PCB. The last revision was supposed to the be final version except for two flaws:

1. The piggyback connector was of the wrong size and there was no planned connections, and

2. The link from the four Amber LEDs to the Ground somehow did not connect despite the auto-correct saying the board is OK.

THE REVISIONS

While correcting the errors, I also too the opportunity to re-design the following:
1. JLCPCB’s minimum via size is 5mm and so, I decided to use that. EaglePCB’s 0.7mm vias suddenly seem to be gigantic. This size reduction allows me to reclaim some PCB real estate and more parallel lines.

2. Bigger solder pads for the variable resistor. This was such a hassle to solder and many drops of solder flux were used.

3. Longer solder pads for the 5730 LED. The extra space lets me melt the solder and not invent hand reflow soldering.

20220822 The Top Panel PCB rev 03 Improvement 02
The version 03 is the one where I designed it for reverse soldering for the 0805 red LED pair. So, the only components on the top side are the LEDs, giving me a ‘flat’ mounting to the Tricorder.
This is what the PCB design would have looked if I printed it out.
This image looks like those Airport security x-rays. It does look complex but you are seeing both sides of the board at once.
Yes, this time, (not a weekend) JLCPCB showed me the two holes for the 0805 red LEDs
So, I am happy that JLCPCB did manage to make the two square holes on the first time round. I hope this is the last revision.
Posted in A Piscean Works Blog, Computers, Design, Electronics, JLCPCB, Printed Circuit Board, Sci-Fi, Star Trek, TR-595E, Tricorder.

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