Category Archives: repair

Vintage Logan Lathe Gets 3D Printed Gears

In December 2016, [Bruno M.] was lucky enough to score a 70+ year old Logan 825 lathe for free from Craigslist. But as you might expect for a piece of machinery older than 95% of the people reading this page, it wasn’t in the best of condition. He’s made plenty of progress so far, and recently started tackling some broken gears in the machine’s transmission. There’s only one problem: the broken gears have a retail price of about $80 USD each. Ouch.

On his blog, [Bruno] documents his attempts at replacing these expensive gears with 3D printed versions, which so …read more

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Posted in 3d printed, 3d Printer hacks, classic hacks, Fusion 360, gear, lathe, Logan 825, parts, repair, repair hacks | Leave a comment

[Ken Shirriff] Becomes a Core Memory Repairman (Again)

Lately, [Ken Shirriff] has been on some of the most incredible hardware adventures. In his most recent undertaking we find [Ken] elbow-deep in the core memory of a 50-year-old machine, the IBM 1401. The computer wasn’t shut down before mains power was cut, and it has refused to boot ever since. The culprit is in the core memory support circuitry, and thanks to [Ken’s] wonderful storytelling we can travel along with him to repair an IBM 1401.

From a hardware standpoint core memory makes us giddy. It’s a grid of wires with ferrite toroids at every intersection. Bits can be …read more

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Posted in Computer Hacks, computer history museum, core memory, fuse, IBM 1401, ken shirriff, psu, repair, repair hacks | Leave a comment

Get Down to the Die Level with this Internal Chip Repair

Usually, repairing a device entails replacing a defective IC with a new one. But if you’ve got young eyes and haven’t had caffeine in a week, you can also repair a defective chip package rather than replace it.

There’s no description of the incident that resulted in the pins of the QFP chip being ablated, but it looks like a physical insult like a tool dropped on the pins. [rasminoj]’s repair consisted of carefully grinding away the epoxy cap to expose the internal traces leading away from the die and soldering a flexible cable with the same pitch between the …read more

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Posted in chip, die, ic, QFP, repair, repair hacks, soldering | Leave a comment

Precision Pantograph Probes PCBs

Electronic components are getting smaller and for most of us, our eyesight is getting worse. When [Kurt] started using a microscope to get a better view of his work, he realized he needed another tool to give his hands the same kind of precision. That tool didn’t exist so he built it.

The PantoProbe is a pantograph mechanism meant to guide a probe for reaching the tiny pads of his SMT components. He reports that he has no longer has any trouble differentiating pins 0.5 mm apart which is the diameter of the graphite sticks in our favorite mechanical pencils. …read more

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Posted in electronics, four bar linkage, hardware, linkage, measuring, pantograph, precision, probe, repair, testing, troubleshooting | Leave a comment

Mouse Mis-Clicking? We Got You.

A mouse with malfunctioning buttons can be a frustrating to deal with — and usually a short leap to percussive maintenance. Standard fixes may not always last due to inferior build quality of the components, or when the microswitch won’t close at all. But, for mice that double/triple-click, will release when dragging, or mis-click on release, this Arduino-based hack may be the good medicine you’re after.

Instructables user [themoreyouknow]’s method cancels click malfunctions by latching the mouse’s controller switch trace to ‘on’ when pressed, keeping it there until the button normally closed contact closes again completely. Due to the confined …read more

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Posted in arduino, Click, debounce, hardware, how-to, mouse, nano, repair | Leave a comment

PCB Solder Pad Repair & Cleanup

What do you do when your motherboard is covered in electrolytic grime, has damaged pads and traces that are falling apart? You call [RetroGameModz] to work their magic with epoxy and solder.

While this video is a bit old, involved repair videos never go out of style. What makes this video really special is that it breaks from the common trend of “watch me solder in silence” (or it’s close cousin, “watch me solder to loud music”). Instead, [RetroGameModz] walks you through what they’re doing, step by step in their repair of a motherboard. And boy do they have their …read more

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Posted in epoxy, PCB repair, pcb-pad, repair, repair hacks | Leave a comment

Vintage Vending Machine Makes The Perfect Gift

Nothing says ‘I Love You’ like an old vending machine, and if it is a restored and working vintage Vendo V-80 cola dispenser then you have yourself a winner. [Jan Cumps] from Belgium was assigned the repair of the device in question by a friend. He started off with just a working refrigerator and no electronics. In a series of repairs, he began with replacing the mechanical coin detector’s switches with optical and magnetic sensors to detect the movement of the coin. These sensors are in turn connected to an Arduino which drives the dispensing motor. The motor itself had …read more

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Posted in arduino, Arduino Hacks, repair, vending machine | Leave a comment

Fix-a-Brick: Fighting the Nexus 5X Bootloop

Oh Nexus 5X, how could you? I found my beloved device was holding my files hostage having succumbed to the dreaded bootloop. But hey, we’re hackers, right? I’ve got this.

It was a long, quiet Friday afternoon when I noticed my Nexus 5X was asking to install yet another update. Usually I leave these things for a few days before eventually giving in, but at some point I must have accidentally clicked to accept the update. Later that day I found my phone mid-way through the update and figured I’d just wait it out. No dice — an hour later, …read more

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Posted in android, Android Hacks, android phone, Cellphone Hacks, Current Events, Featured, google phone, heat gun, heatgun, LG, nexus, nexus 5x, repair, repair hacks, smartphone | Leave a comment

Nexus 5X Phone Resurrected By The Oven

Warranty shmarranty — toss the phone in the oven! There’s apparently a problem with the assembly of the Nexus 5X smartphones, and it looks like it is due to faulty BGA chip soldering. LG USA has had enough problems with the phone that they may not even have enough parts or new units to fix it, so they’re offering a refund. But we all know how it is to get attached to a device, right?

So [Alex] disassembled his beloved phone, pulled out the board in question, and gave it the XBox Red Ring Of Death treatment. He placed the …read more

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Posted in bga, cellphone, Cellphone Hacks, nexus, oven, reflow, repair | Leave a comment

Fixing My 4×4: The Battle of the Bent Valves

If you know me at all, you know I’m a car guy. I’m pretty green as far as hardcore wrenching skills go, but I like to tackle problems with my vehicles myself – I like to learn by doing. What follows is the story of how I learned a few hard lessons when my faithful ride died slowly and painfully in my arms over the final months of 2016.

For context, my beast of a machine was a 1992 Daihatsu Feroza. It’s a 4WD with a 1.6 litre fuel injected four-cylinder engine. It had served me faithfully for over a …read more

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Posted in automobile, car, car hacks, car repair, daihatsu, daihatsu feroza, feroza, four wheel drive, Hackaday Columns, Interest, repair | Leave a comment