Benchoff

Builds computers and guillotines. Bay Area.

2025-11-18

@penguin42

It's a horrible hack of Molex SlimStack connectors. They don't make a 1000-pin version, but they do make a 50-pin version. So I put two females on either side of a board and spaced the males out on the backplane.

It's the highest density edge connector I can come up with, at least until I break into the Samtec warehouse.

2025-11-18

@f4grx There's a CPU fallback but it's exceptionally slow for anything but the tiniest boards.

But it'll work on a 2060, and those are cheap!

2025-11-18

@ThePowerfulJohnny Yeah, sounds about right. Keep in mind I'm unemployed and have nothing better to do.

2025-11-18

Hey, I made an autorouter plugin for KiCad. It also made the most complex PCB you'll ever see:

bbenchoff.github.io/pages/Orth
github.com/bbenchoff/OrthoRoute

2025-10-14

Ay once again I'm posting this. I need a job. Do you need _anything_ made? I can do that.

bbenchoff.github.io/

Benchoff boosted:
2025-10-14

Hi! I'm looking for work and have applied to over 2000 positions in the past six months.

If you need a hardware/embedded person, this is my portfolio: bbenchoff.github.io/

2025-07-22

Hi! I'm looking for work and have applied to over 2000 positions in the past six months.

If you need a hardware/embedded person, this is my portfolio: bbenchoff.github.io/

2025-07-07

Ever wonder what happens when you run random data as machine code? I did it 50 billion times, and found nothing:

bbenchoff.github.io/pages/Babe

2025-06-10

Hey I made a thing: bbenchoff.github.io/pages/Fini

I found working, playable Atari 2600 ROMs in 120 terabytes of random data

2024-01-13

I need to up my follower count so here's a game boy I bought in Japan for $20.

2024-01-13

so twitter is just all nazi shit now huh? I might be shitposting here more

2023-08-26

I have bought an .ai domain.

I intend to build hardware.

I hope a 10-layer board will be enough.

2023-04-30

"But wait", you say, "This guy never wrote a guide on how to use a dremel grinder bit as a cutoff wheel!"

2023-04-30

❤️❤️Just Me❤️❤️
❤️❤️Living my life❤️❤️
❤️❤️Not worrying about the airsoft-carrying libertarian with building permit issues❤️❤️
❤️❤️who's now ripping off stuff I wrote a decade ago❤️❤️

2023-04-26

@azonenberg @Dtl oh man I was just screwing around with the 'stich' option in the amscope program.

But do you have any recs for an automated stage? It's for PCB work so I'm tempted to just 3D print crap and stuff an arduino in it.

2023-04-26

I was going to ask electronics twitter about this but I realized we all left, BUT ANYWAY does anyone have any pointers/platform rigs for a stitching setup with an AmScope?

2023-04-10
2023-04-09

After everything is put back together we can put the shells on and test it in the Powerbook. There's a tool called 'Battery Reconditioner' that will give you the serial number and verify everything is connected correctly.

After that, it's just a tiny bit of JB Weld around the shell. One side at a time, clamped in a vise. This part will take about a day, but after that I've got a brand-new battery.

2023-04-08

I've rebuilt a few duo batteries, and this is the first one I've seen with a plastic 'frame' for the nickel strip. The other ones used a simple flex PCB to attach the nickel strips between cells.

You might be wondering how I'm attaching the cells and nickel strips -- dude, you can buy a USB-powered spot welder for fifty bucks. Works well enough, but it has to charge for a while so that's why I'm pausing this thread for a few hours.

amazon.com/Portable-Machine-We

2023-04-08

Inside the duo are the cells and a few electric components.

The transistor-looking thing is a DS2401 - basically a serial number chip. It stores a unique ID number that can be read over a one-wire interface.

The longboi is a KLIXON 6MM81AA-04, a temperature sensor.

There's an unidentified component wrapped in heatshrink, and a 250A fuse (for real?!) in line with the connection between the 'innermost' batteries.

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Server: https://mastodon.social
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Repository: https://github.com/cyevgeniy/lmst