lumiya

· 7mo ago

Blocking the basement with my projects :neofox_blush_hide:. It's bad lighting but I've got all the colores done

I still need to seal 🦭 it and assemble it again. It feels like it's going to turn out great.

#woodworking #diy #wip #pride #lgbtq #queer

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#WIPWednesday #SewingMachine #diy #wip

· 6mo ago

I wanted to know how fast my sewing mashine is going. So I am currently trying to mod my mashine with a light barier.

I still have not completely figured out the mounting dimensions but it seams like it can work

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· 7mo ago

Replying to

@jaseg@chaos.social @poleguy@mastodon.social I'm not literally using pen & paper i was using inkscape to try to mark things and follow traces. Though it quickly got to complicated and i lost the overview and made a lot of mistakes. The Graphics tablet would be a great addition though 🤔 Regarding the XY Problem.... I think your right i don't need such a Tool to solve my issue. My interests just steered my into that direction 😖 The complexity is not high, but the right toolset is often a benefit to learn for future projects. In the meantime i also found a nice interesting tool that helps with alignment and can even output a Net-list (i still need to look further into how it works though) Maybe interesting: https://pcb.etaras.com/ And yea my brain just did not notice the wrong hashtag it just autocompleted it to electronics in my head 🙈

pcb.etaras.com

PCB ReTrace

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#reverseengineering #pcb #electronics

· 7mo ago

#askfedi Hiii, I'm trying to reverse engineer a PCB. But doing this by hand with a pen and paper is not working out. Does anyone know of any good free tools to help me trace both sides and somehow end up with a shematic?

I'd love to be able to inject signals with a ESP to remote control the system makeing my old soap dispenser into a plant watering system.

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#electronics #diy #printer #modding

· 5mo ago

My new laser printer is working.
The Power LED was a bit to bright though. So i decided to fix that.
And just a bit of reverse engineering and crappy soldering (i need a good iron soon) later i reduced the Brightness by just adding a Resistor.

Now it won't annoy me at night as much anymore 😺.

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· 6mo ago

First of all sorry for the many comments...

You mention charging issues and the blown Resistor is close to the "CN3303" (might be https://www.lcsc.com/product-detail/C3034873.html ) I found an English Datasheet for that
https://make.net.za/wp-content/datasheets/Consonance%20Elec%20CN3303%20Datasheet%20v2.1.pdf

From the Charging issue as well as the seamingly larger footprint than the other resistors, I would assume you blew a Sensing Resistor. Could be "R_{CS}" Page 2 Figure 2.
Would also make sense as its close to the SOT23-3 "A07T" search results show that it could be a PMOS, and close/connected to a big coil "L2"

I hope this helps 🙈 to figure out what value the resistor should have had.

lcsc.com

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· 6mo ago

Sounds like you would need to do some partial reverse engineering then.

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· 6mo ago

Is the marking on the blown resistor still readable?

If not I think you would need to figure out what it's purpose was. Then you could check the reference design for the corresponding IC.

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· 7mo ago

@alice@lgbtqia.space Hiii,, thanks still setting up all the account stuff 🙃

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· 5mo ago

Sometimes you need to build a PCB just to test the IC. This time i wanted to find a cheep Stepper driver for a project. But since I'm working based on a translated Datasheet, I needed tests...

So here is my HTD9810 stepper board. I reflow soldered it and got it working. 🎉

Now i just need to figure out what to do with the, luckily not needed, other boards. 🤔

#electronics #diy #pcb #maker

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· 6mo ago

Just thought of another possibility. Maybe you'll find somebody online who already disassembled it. Like a teardown where you could check and see if it's the same PCB.

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