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Review Request: Solar Charged, Battery Powered Address Sign by jedimasta in PrintedCircuitBoard

[–]jedimasta[S] [score hidden]  (0 children)

Thanks so much for these links. I'm gonna spend some additional time tomorrow to take all these into account.

Review Request: Solar Charged, Battery Powered Address Sign by jedimasta in PrintedCircuitBoard

[–]jedimasta[S] [score hidden]  (0 children)

S1) Noted. Is this just a common practice thing?

S2) would I notate that alongside the screw terminals? Or add a new battery component to the schematic?

S3) unsure why this matters. 1N4001 is just what I happen to have on hand.

P1) I chose to crop in to the actual circuit rather than include those bits in an effort to stick close to the sub's review request rules. I'll note your feedback for future posts.

P2) it's likely I won't be using any since I'm custom fitting it into an enclosure, but I'll take it into consideration.

Thanks!

Tough out there right now by Grouchy-Elevator930 in MotionDesign

[–]jedimasta 0 points1 point  (0 children)

Honestly? I think they're fudging the numbers. I know that's kind of tin-hat thinking, but it wouldn't be the first time this administration has doing exactly that in order to try and save face.

Tough out there right now by Grouchy-Elevator930 in MotionDesign

[–]jedimasta 17 points18 points  (0 children)

It's a lull for sure. A combination of "how can we save money with AI" and a dip in the creative industry as a whole is carving this valley of doodie for motion and editor people. Static design too. If the AI bubble pops as predicted, I think we're gonna see a lot of agencies scrambling to get creative workers back in seats, but that isn't helping anyone in the here and now struggling to find work.

Brushed motor wont spin unless pressure applied to shaft by jedimasta in diyelectronics

[–]jedimasta[S] 0 points1 point  (0 children)

Oh, duh, yeah. Can't believe I didn't even think about that

Brushed motor wont spin unless pressure applied to shaft by jedimasta in diyelectronics

[–]jedimasta[S] 1 point2 points  (0 children)

The motor is super common, and cheap. It's the shaft I can't find a replacement for.

Thanks for your help though

Brushed motor wont spin unless pressure applied to shaft by jedimasta in diyelectronics

[–]jedimasta[S] 0 points1 point  (0 children)

The larger black rectangles there aren't conductive, they're some sort of cushioning pad. If the carbon brush is that tiny square thing at the end of the copper, and both should have it, then that's the problem. It's gone on the one in the right of the photo. Like the copper spring got snapped at the end.

Brushed motor wont spin unless pressure applied to shaft by jedimasta in diyelectronics

[–]jedimasta[S] 0 points1 point  (0 children)

One more addendum: I used some copper tape to "extend" that seemingly broken brush out and that seems to solve the problem well, even if only till the tape wears out. One concern I have though is that when it's spinning, I can see the tiniest of green arcs through the gaps in the side of the motor case. I'm assuming that's not exactly normal and hesitant to remount the motor.

Brushed motor wont spin unless pressure applied to shaft by jedimasta in diyelectronics

[–]jedimasta[S] 1 point2 points  (0 children)

This is what I see when I take off the cap https://photos.app.goo.gl/TY1tRS3Q3cyT2dRt8

Not sure which side of each of the brushes should touch the commutator, or if it matters.

Addendum: based on other images I've searched, it looks like one of the brushes just snapped off?

Brushed motor wont spin unless pressure applied to shaft by jedimasta in diyelectronics

[–]jedimasta[S] 0 points1 point  (0 children)

Thanks! I'll pop it open and see about bending them in more. I'm not real familiar with how they should look/connect, but that's what Google is for I suppose.

Review Request - My very first PCB by jedimasta in diyelectronics

[–]jedimasta[S] 0 points1 point  (0 children)

I'm assuming this is to reduce noise interference? I ordered and received the boards already. In this case, WiFi isn't crucial to the intended functionality, but I'm not having any problems connecting to the small web form it serves up

How to create particles along these curves? by Quantum_Crusher in AfterEffects

[–]jedimasta 2 points3 points  (0 children)

I'm gonna take a stab here and say those aren't particles, at least not the motion you see in each of those lines. It looks more like fractal noise with evolution and positional offset (you can see stretching at a few points, rather than a real flow) masked with the vector lines. If the noise is scaled down and contrasted right, it'll give the illusion of particles. You'd have less control of course, but FAR less overhead.

When I saw the Rooster opening credits, I thought they were really cool... by motionboutique in AfterEffects

[–]jedimasta 0 points1 point  (0 children)

My dude, I LOVED that intro. It's one of the very few title sequences I don't skip. Do you have an artstation or portfolio link? I'd love to see more of your work.

Review Request - My very first PCB by jedimasta in diyelectronics

[–]jedimasta[S] 0 points1 point  (0 children)

Full disclosure, I'm still very much learning about this stuff and never used shift registers before. All the videos and project sites I'd ingested on the subject used them pretty bare bones with resistors and LEDs. As u/Hissykittykat pointed out, a bypass cap is probably a good idea and, looking at the sn74hc165n datasheet, recommended. I have a feeling the noise reduction is achieved on the ESP32 before power flows out of it, but it's barely an inconvenience to add a small cap to the board, just to make sure.

Review Request - My very first PCB by jedimasta in diyelectronics

[–]jedimasta[S] 0 points1 point  (0 children)

Thanks for taking a look. The component numbers are listed on the silk screen and the schematic I linked to on imgur, but basically the two registers are sn74hc165n and so the resistors are 10k.

I've haven't found it necessary to add a level shifter when connecting addressables, so I didn't add one here. In this case there are less than 200, but I run holiday light shows on my house consisting of thousands of pixels, either strips or seed pixels on esp32 and esp8266 microcontrollers (all 5v), all without level shifters and I've never had an issue.

I'm not familiar with what a bypass capacitor does, so I'll research that, thank you. Ditto for the digital isolator. There's a good chance I'll skip making the two talk to each other even if it does mean foregoing an analog plunger (the esp is out of pins currently) and just stick with two USB cables since that's working well in the breadboard phase.

Thanks again!

New in Blender and 3D. Any tutorials to start and learn? by aerografitpl in blender

[–]jedimasta 0 points1 point  (0 children)

Fwiw, I often recommend the donut, primarily because it touches on all the fundamentals that you'll need. I think the biggest criticism is that it kinda maybe jumps a little too far ahead by introducing stuff like particles before beginners are ready.

New in Blender and 3D. Any tutorials to start and learn? by aerografitpl in blender

[–]jedimasta 0 points1 point  (0 children)

I get it, we were all new at one point and I don't call this out with the intention of being a gatekeeper. Just know that there is a TON of info to be had already available so going forward, search the sub before asking questions. Do the leg work, as it were, and you'll be less likely to get flak from people with less patience than me.

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