c/custom-keyboard-builds

Spent 4 hours trying to fix a sticky spacebar on my first build

I built my first custom keyboard last month and got everything working except the spacebar. It kept sticking down after I pressed it. I figured it was a simple fix, maybe the stabilizer wire was bent or the lube was wrong. I took the whole thing apart three times, re-lubed the stabs, and even swapped the switches. After four hours of messing with it, I found out the problem was the keycap itself. It had a tiny piece of extra plastic on the bottom that was catching on the switch housing. I just filed it down with a nail file and it worked perfect right after. Has anyone else dealt with keycap molding issues that took forever to figure out?

Lube choice made a bigger difference than I thought

I was at a local meetup in Portland last month and this guy ran a sound test on my board with Krytox 205g0, then swapped to Tribosys 3203. The difference was way more than I expected, the 205g0 made my linears feel buttery but kinda muted the clack I was after. Switched to the 3203 on my next build and got that sharp sound back without losing too much smoothness. Has anyone else found that their whole build feels different just from changing the lube weight?

TIL foam vs silicone dampeners is a legit war

I built two identical boards last month, one with neoprene foam and one with silicone shelf liner, and the difference was insane. The foam one sounds deeper and cleaner, while the silicone one has this weird hollow echo I can't ignore. Has anyone else tested both and found a clear winner for their build?

Resoldered my entire board last night after one bad joint killed the spacebar

Got a new 60% kit from a group buy back in November, used it for two months before the spacebar started chattering. Tracked it down to a single cold joint on the controller pin, so I spent 4 hours reflowing everything this time with leaded solder. Has anyone else had a batch of switches that just refuse to cooperate?

Just found out my new $180 hotswap PCB was dead after I finished the whole build.

Spent three hours putting everything together, lubing switches, the works. Powered it on and got nothing. No LEDs, no response. I was ready to start desoldering everything, but on a whim I checked the USB-C port with a multimeter. The 5V rail was fine, but the 3.3V regulator was showing a dead short. Turns out a tiny bit of metal debris from the case filing must have gotten lodged in there during assembly. A careful poke with some tweezers and a blast of compressed air fixed it. Saved me a full teardown. Anyone have a good pre-build PCB check routine they swear by?

Pro tip: always test your PCB before you solder the whole thing

I was building a 75% in my garage last month and got ahead of myself. I soldered all 84 switches onto the board before doing a basic continuity test. Plugged it in and a whole column was dead. Had to desolder every single switch on that column, which took me over two hours. Found a tiny solder bridge between two pads I'd missed. Has anyone else had a board look perfect but still fail like that?

My brother told me to skip the foam mods on my first build

He said the board would sound 'fine' without it, but after adding a $5 sheet of packing foam from the craft store, the ping was totally gone. Anyone have a go-to budget foam they use?

Tried swapping my stabs to screw-in and it was a disaster

Last week I spent 4 hours fighting with screw-in stabilizers on my Tofu build. The screws stripped on two of them because I tightened too hard. Has anyone else had this issue with aluminum cases?

Switched from plate mount to PCB mount stabilizers and wow what a difference

I used to just use whatever cheap plate mount stabs came with my kits for like 2 years. Finally got fed up with the rattly spacebar on my current build after trying 3 different lubing methods. Swapped over to Durock V2 PCB mount stabs last month on my TKL and clipped the legs like everyone says. The difference in feel is honestly night and day, no more ticking or wobble even after a week of typing. Has anyone else made this switch and found it solved most of their stabilizer issues or was there another trick that helped?

My buddy swore by using a hairdryer for heat shrink tubing and I thought it was a bad idea

When I was building my first 65% board, my friend Mike told me to just use a hairdryer on the heat shrink on my cable. I was sure you needed a proper heat gun, so I went out and bought one for like $35. Tried it, and it worked fine, but it felt like overkill for one tiny piece of tubing. Next build, I was at Mike's place and he just grabbed his wife's hairdryer, held it close for about 30 seconds, and got a perfect, tight seal. I tried it at home on my next cable and it worked just as well, no burnt fingers or melted wire. Now I feel dumb for buying a tool I barely use. Has anyone else found a simple household item that works better than the 'right' tool for a keyboard job?

PSA: A $2 paintbrush from the craft store fixed my sticky spacebar stabilizer

I was building a 75% board last week and the left stabilizer on my spacebar kept sticking on the upstroke, making a gross squishy sound. After trying three different lubes and checking the wire, I grabbed a small paintbrush from my kid's art box and dry-brushed the inside of the stabilizer housing. The tiny bristles grabbed all the leftover factory grease and dust I missed. Now it's smooth as butter. Has anyone else found a weird household tool that saved a build?

Shoutout to the guy who told me to try a hair dryer on my sticky stabilizers

I was about to throw out a whole set of Cherry stabs after they got gummy from too much lube, but warming them up for 30 seconds with a hair dryer on low let me wipe the excess right off. What's your go-to fix for a lube mistake?

Switched from a stock plate to a custom cut brass one and the sound is night and day

My 65% build used a basic steel plate for about 8 months and it always felt a bit hollow and pingy. I got a hand-cut brass plate from a local shop in Austin last month and the board now has a deep, solid thock with zero metallic ring. Is brass just the best material for plates or am I missing something better?

Warning: don't skimp on stabilizer lube

Just spent 4 hours trying to fix a rattly spacebar on my new build because I thought the included factory lube would be enough. Had to completely disassemble the board twice to re-lube the stabilizer wires properly. Anyone have a go-to lube brand they swear by for this?

My $80 hot swap socket kit was a total waste of money

I bought a Mill-Max 0305 socket kit thinking it would let me test switches easily, but the install was a huge pain and I ruined two PCBs trying to get them straight. On the other hand, a friend swears by them and says they're perfect for his frequent switch changes. Has anyone else had a good or bad experience with these things?

A friend told me my stabilizers sounded like a bag of marbles, so I spent a weekend on the holee mod.

I'm convinced most people are over-lubing their stabilizers

I keep seeing builds with mushy spacebars because there's so much dielectric grease in the housings. A tiny dot on the wire ends and a thin coat on the plastic is all you need, anything more kills the feel. How do you guys measure your lube to avoid this?

Found out the original IBM Model M buckling spring force is way higher than I thought

I was reading an old spec sheet from the IBM archives and it said the actuation force is 70 grams. That's almost double what most modern tactile switches use. I always thought my vintage board felt heavy but seeing that number explained it. Has anyone else measured the force on their old Model M or similar buckling spring boards?

Why does nobody talk about the real cost of a 'budget' custom build?

Three years ago, I built my first board with a cheap kit from a group buy, thinking I'd save cash. The case was thin, the PCB had a weird layout, and the stabilizers were awful. Last month, I finally added it all up: after buying new stabs, better switches, and a decent keycap set to fix it, I spent more than if I'd just bought a nicer kit to start. But my friend says the tinkering and fixing is the whole point, even if it costs more. What's your take? Is a budget build a smart start or a money trap?

My barber asked me why I needed 12 different keyboards and I had no good answer.

My cousin swore by using a hairdryer to heat shrink tubing and I thought he was nuts

He told me to just hold it about six inches away and move it slowly, said it worked better than a heat gun for small jobs. Tried it last week on a coiled cable for my 60% build and it actually gave me a smoother finish with no scorch marks. What's the weirdest tool you've used for a keyboard project that actually worked?

A guy at the meetup in Austin said something about keycaps that stuck with me

He was showing off his build, and when I asked about the keycaps, he just said, 'I don't buy sets anymore, I just hunt for the one perfect key for each spot.' He had a board full of mismatched caps, each one he really liked. It happened last month, and I've been thinking about it ever since. Has anyone else tried building a board like that, one key at a time?

Stopped by the library in Bellingham and saw a vintage IBM Model M on the front desk

The librarian said it's been there since 1992 and they just keep fixing the keycaps. Anyone know a good source for replacement buckling springs?

Wrapping my own USB-C cable for my first build saved me $40 and taught me a ton.

I was frustrated by the high cost of custom coiled cables, so I bought a DIY kit from Zap Cables and, after watching a few tutorials, found that using a cheap heat gun from Harbor Freight and taking my time with the paracord sleeve made the process way easier than I expected. Anyone have tips for getting a really tight coil without kinking the wire?

PSA: My new $180 keyboard PCB just fried itself the first time I plugged it in.

Happened two nights ago. Was doing a hotswap build with some silent switches. Heard a pop, smelled that awful burnt electronics smell. Board is totally dead. Tried a different cable, different port, nothing. Feels like I just lit that money on fire. Anyone know a good place to get a board fixed, or is it just a paperweight now?