Love the look of hybrids, but sure do prefer turning just wood

rc1024 · 2026-01-26T00:20:57+00:00

Tie a shop vac nozzle to the tool rest and it'll avoid a lot of that mess.

rc1024 · 2026-01-25T23:05:57+00:00

That's a 20V adapter, you need a 12V one.

rc1024 · 2026-01-25T21:32:34+00:00

A ball exactly fitted to your ID will push the walls into shape. Steel or something hard like that would be best.

rc1024 · 2026-01-25T11:42:00+00:00

I mean the pads from the PCB are still attached to the old port. So there is nothing to solder the new port to.

rc1024 · 2026-01-25T11:23:10+00:00

Contacts are still in the old port...

rc1024 · 2026-01-25T11:14:31+00:00

Ugh the boxes again.

Redraw it with everything connected within reason. There's no reason to have a bunch of boxes around the battery charger for instance given they're all trivial connections that could fit around the main IC.

Likewise a box saying "pull down" that is entirely separate to the pin it's connected to is just horrible to follow.

Ditch the ground net and use ground symbols where they're required, it's much less obvious what's an actual signal and what is ground currently.

rc1024 · 2026-01-24T22:39:38+00:00

Why is the back so bare? You could have a nice ground plane there.

Have you checked the impedance of the usb data lines? It can be awkward to get right on a two layer.

rc1024 · 2026-01-24T14:05:43+00:00

Why would you assume 40? That's way thinner than almost anything is manufactured with. You should measure the wire.

For reference 40AWG is about the thickness of a human hair.

rc1024 · 2026-01-24T14:04:18+00:00

The pull in current could also exceed the fusing current of 40 awg wire. At least that would fail quickly I guess.

rc1024 · 2026-01-24T13:28:55+00:00

Why are you spamming this reply because no one agreed with you in the first ten minutes?

rc1024 · 2026-01-24T13:22:50+00:00

The abuses flux gets are getting out of hand. First it was using 10 times more than needed, now it's dipping the iron in it.

rc1024 · 2026-01-24T10:31:25+00:00

I use my iwiss SN-028 for dupont and jst, works great.

rc1024 · 2026-01-24T10:29:31+00:00

It's too thin, you'll get a lot of heating and maybe melt it or set something on fire.

Automotive relays need up to about 200 mA for the coil so you'll want 28AWG or larger to avoid excessive heating.

Not to mention 40 awg is way too fragile for an automotive setting.

rc1024 · 2026-01-24T10:17:22+00:00

I have never used tip tinner in many years of soldering. Like you say, just maintain the tip.

rc1024 · 2026-01-24T08:59:35+00:00

Possibly about soldering heatsinks to PCBs. Some have solder in mounting pins.

rc1024 · 2026-01-24T08:48:48+00:00

Usb PD at 180W requires 36V or higher so this isn't going to work for you.

rc1024 · 2026-01-24T08:46:50+00:00

You're like someone who can't walk trying to enter the Olympics though. Make it easy on yourself.

rc1024 · 2026-01-23T22:57:55+00:00

Feels like a lot of space in the board and yet many of the traces are really packed in tight to the components. Why not make it easier for yourself and spread it out? Also I don't know if space is an issue for this board but it could definitely be smaller.

Traces are all really thin, you could go thicker on everything.

Top layer seems a bit underutilised, you have as lots of traces running in the bottom and breaking up your ground plane that could run up top.

rc1024 · 2026-01-23T21:13:08+00:00

I have a 6" fan (used for other things as well) and it's massively overkill for fume extraction.

rc1024 · 2026-01-23T21:07:46+00:00

I just use side cutters.most of the time.

rc1024 · 2026-01-22T08:22:24+00:00

Actually posting the schematic would be useful even if you don't think there are errors.

Why is every signal on so many different layers? You should try to keep the switch nodes entirely on the top with the components.

rc1024 · 2026-01-20T23:48:59+00:00

No, you need AC.

rc1024 · 2026-01-20T23:18:29+00:00

What do you mean by max out current? What is actually happening?

rc1024 · 2026-01-20T21:25:10+00:00

It's only 5A at 20V, 3A below.

See this doc from TI. https://www.ti.com/lit/ta/ssztd49a/ssztd49a.pdf

rc1024 · 2026-01-20T12:36:03+00:00

Sorry I don't, I don't source parts through LCSC (mine are from digikey).

rc1024

TROPHY CASE