Search found 353 matches

by jsheradin
28 Dec 2020, 17:51
Forum: Workshop
Topic: Omnikey Plate repaint
Replies: 13
Views: 2948

Re: Omnikey Plate repaint

You'll definitely need to remove the rust before you paint it but sandblasting and all that isn't necessary. I would: Remove the switches Get the bulk of the rust off with a wire brush or 220 grit sandpaper Soak the plate in Evapo-rust and rinse Get it pretty smooth with some 220-800 grit sandpaper ...
by jsheradin
28 Dec 2020, 16:56
Forum: Workshop
Topic: Model M SSK Case
Replies: 15
Views: 4817

Re: Model M SSK Case

Awesome work! I wish I had these CAD files before I went and made my own fake SSK (still WIP, got sidetracked with a different project). https://i.imgur.com/pt5rmTD.jpg https://i.imgur.com/Ilrfur5.jpg I cut down one of the new Unicomp 104s to make mine since it's nice to have L/R GUI keys - just an ...
by jsheradin
28 Dec 2020, 16:22
Forum: Workshop
Topic: M0110 retro 60%
Replies: 16
Views: 17026

Re: M0110 retro 60%

how's the battery life? what QMK keyboard did you use as base? I haven't done too much testing on battery life yet; I'll see how long it lasts starting now I guess. My computer boots to a GRUB menu which doesn't have BT support so I mostly use it in USB mode. I plant to make one of the CSR8510 HID ...
by jsheradin
26 Dec 2020, 00:13
Forum: Workshop
Topic: Geac 8340
Replies: 20
Views: 6214

Re: Geac 8340

Hey I grabbed one of those too! If it's any use, here's some pics of the bare PCB on mine: https://i.imgur.com/3BTs3Sw.jpg https://i.imgur.com/oqfFQCE.jpg https://i.imgur.com/wiaVQgK.jpg Ignore the pen marks on the back. I was going to try adding diodes to make it NKRO/USB but I'm probably going to ...
by jsheradin
23 Dec 2020, 14:32
Forum: Workshop
Topic: Scratchy Model F - can you lube these?
Replies: 7
Views: 2315

Re: Scratchy Model F - can you lube these?

I think most people go with a dry silicone/PTFE lube if any at all. I've had a couple pretty scratchy model Ms that were fixed with a good cleaning of the barrels and key stems - worth a try if you haven't already.
by jsheradin
19 Dec 2020, 01:09
Forum: Workshop
Topic: M0110 retro 60%
Replies: 16
Views: 17026

Re: M0110 retro 60%

Armed with some 8% peroxide, large plastic bags, and a sous vide cooker I went about the un-yellowing. https://i.imgur.com/kaD4IM4.jpeg I tried to not go too overboard on it, just get rid of the bit of orange tint it was picking up. https://i.imgur.com/na6eGXX.jpeg https://i.imgur.com/xiB1Pld.jpeg I...
by jsheradin
09 Dec 2020, 05:48
Forum: Workshop
Topic: Advice on retrobrighting
Replies: 12
Views: 3159

Re: Advice on retrobrighting

The plastic will have long disintegrated before the brass even tarnishes. Peroxide baths are not particularly good for plastic but the difference is minimal. If the color bothers you it's well worth going for it as the KB wouldn't be doing much else anyways. Keep shadows and uneven exposure in mind ...
by jsheradin
08 Dec 2020, 19:02
Forum: Workshop
Topic: Advice on retrobrighting
Replies: 12
Views: 3159

Re: Advice on retrobrighting

Depending on the adhesive, you might have some luck with hot air and a thin plastic blade. If you absolutely can't remove it, I'd cover it with some kapton tape and do the peroxide bath as normal. There's tons of places that do small batch vinyl stickers. If you can manage to get it off reasonably u...
by jsheradin
08 Dec 2020, 17:23
Forum: Workshop
Topic: Connecting to a Model M membrane
Replies: 9
Views: 2900

Re: Connecting to a Model M membrane

Finally got back to working on this project. I had to extend my printer's build volume to get this as a single print (glueing smaller prints together is for wimps). Turns out carbon fiber PETG is pretty hard to get good looking prints with. I'll probably go with some hammered paint since it will hid...
by jsheradin
08 Dec 2020, 05:06
Forum: Workshop
Topic: Looking for help converting a FLS Epson
Replies: 21
Views: 3911

Re: Looking for help converting a FLS Epson

As far as voltage goes, the controller and matrix would still operate on 3.3/5V (depending on the controller). Most project boards can easily take in the epson's 12V supply and regulate it down to what they need. The FTDI chip or logic level converters is what would convert the data signals between ...
by jsheradin
08 Dec 2020, 04:39
Forum: Workshop
Topic: Looking for help converting a FLS Epson
Replies: 21
Views: 3911

Re: Looking for help converting a FLS Epson

I've always thought that retro-modding tech is worth it. IMO as long as you keep the character of the original, there's nothing wrong with tastefully adding functionality. Thinking about it, there might be an option 3.5. It'd still entail a full matrix replacement but there's no reason you couldn't ...
by jsheradin
08 Dec 2020, 04:13
Forum: Workshop
Topic: Looking for help converting a FLS Epson
Replies: 21
Views: 3911

Re: Looking for help converting a FLS Epson

I was describing using the whole computer as a way to access a text terminal running on a modern PC. If you are only interested in using the KB you have a few options: 1. A protocol adapter will work with significant limitations (no held key detection, 1kro, etc.) but will keep functionality with th...
by jsheradin
07 Dec 2020, 01:26
Forum: Workshop
Topic: M0110 retro 60%
Replies: 16
Views: 17026

Re: M0110 retro 60%

I took one of the switches apart and tried a couple different lubes I had on hand. Pure silicone seemed to be smoothest overall but it wasn't noticeably better than the unopened switches; I decided to just leave them as is. The matrix could have been neater but I wanted to keep it close to square si...
by jsheradin
05 Dec 2020, 18:21
Forum: Workshop
Topic: Looking for help converting a FLS Epson
Replies: 21
Views: 3911

Re: Looking for help converting a FLS Epson

I'd be glad to help you learn! You'd need either a DB9 or DB25 (depending on what the epson has) RS232 to USB adapter and a computer running Linux. You can probably get a DOS/powershell prompt with a Windows PC but I've never tried it. On the Linux PC you set the serial configuration either on boot ...
by jsheradin
05 Dec 2020, 17:55
Forum: Workshop
Topic: M0110 retro 60%
Replies: 16
Views: 17026

M0110 retro 60%

I grabbed a good condition Apple M0110 recently and plan to give it a bit of a modernization. I gave it a quick test with a TMK protocol adapter and man, these are some smooth switches! They all seem to work and feel fine, should I go through the effort of pulling them apart, cleaning, and lubing? I...
by jsheradin
04 Dec 2020, 14:57
Forum: Workshop
Topic: Looking for help converting a FLS Epson
Replies: 21
Views: 3911

Re: Looking for help converting a FLS Epson

It'd be pretty similar to Soarer's converter but there's a good chance this KB doesn't operate on 5V so you might need some logic level converters. Even with a fully implemented protocol it might lack functionality making it hard to use on a modern computer. Your best bet would be to socket a conver...
by jsheradin
03 Dec 2020, 15:11
Forum: Workshop
Topic: Looking for help converting a FLS Epson
Replies: 21
Views: 3911

Re: Looking for help converting a FLS Epson

If you want to use the computer as a whole it'd be pretty straight-forward to get a shell from a modern computer going on it. I've done similar with a dumb terminal and raspberry pi for text games, BBS, etc.
by jsheradin
12 Nov 2020, 14:09
Forum: Workshop
Topic: Connecting to a Model M membrane
Replies: 9
Views: 2900

Re: Connecting to a Model M membrane

So how do you attach them? Sorry for my my lack of knowledge in soldering The FPC connectors basically have a little metal clip inside that clamps onto the ribbon cable's contact. That clip extends outside of the plastic housing with a nice big patch that a wire can be soldered to (kind of like an ...
by jsheradin
09 Nov 2020, 21:31
Forum: Workshop
Topic: Connecting to a Model M membrane
Replies: 9
Views: 2900

Re: Connecting to a Model M membrane

Using a couple 1.0mm pitch FPC connectors seems to work! A pin lines up with each trace and there's no shorts. They are all measuring under 1 Ohm with about 0.4 Ohm average.

Digikey #: WM7097CT-ND

Image
by jsheradin
08 Nov 2020, 05:59
Forum: Workshop
Topic: Connecting to a Model M membrane
Replies: 9
Views: 2900

Re: Connecting to a Model M membrane

I don't own a model m but i came across part numbers for the membrane socket in the 101 key here. That's what was in my OG model M and what I assumed the 104 key would use as well. Unfortunately those are 2.54mm spacing where the Unicomp uses 2.0mm and a single 24 pin connector. https://i.imgur.com...
by jsheradin
08 Nov 2020, 05:52
Forum: Workshop
Topic: Connecting to a Model M membrane
Replies: 9
Views: 2900

Re: Connecting to a Model M membrane

pandrew wrote:
06 Nov 2020, 21:42
Hey!

What do you mean by FSSK and membrane?
My bad, didn't realize that wasn't clear. I'm making a fake-ssk out of a Unicomp 104 key. I'm trying to reuse the Unicomp membrane but not the stock controller board which has a different connection method than a normal 101 key model M.
by jsheradin
06 Nov 2020, 15:49
Forum: Workshop
Topic: Connecting to a Model M membrane
Replies: 9
Views: 2900

Connecting to a Model M membrane

I'm making a fake-SSK out of a Unicomp 104 key and can't figure out a good way to attach to the membrane. It melts immediately on the lowest temp my soldering station can go (200C). Silver epoxy and carbon glue seem to break off very easily even if I rough up the traces with a glass fiber pen. I had...

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