Model F key failure

Redmaus · 23 Apr 2015, 22:48

0100010 wrote: Maybe? http://www.homedepot.com/p/General-Tool ... /100200416

That's it!

fohat · 24 Apr 2015, 14:33

I used an antique 5/8" leather punch that I bought on ebay.

The barrels are 1/2" diameter, and I allowed the extra crescent of the cut to be diagonally down to the right to accommodate the "buttress" alignment tabs as found on the AT and 122-key styles.

The XT style has a small thin separate post directly at the bottom, and I have not cut one of those mats yet.

vivalarevolución · 24 Apr 2015, 15:00

A few things:

I was going to mention that your malfunctioning key might be the result of moisture or a sticky residue on the hammer or PCB, but you figured that out.

I don't recommend those grommet things. I would recommend at least a 1/2 inch hole size. You can find the proper sized hole punch if you look around online a bit: http://www.mcmaster.com/#hole-forming-punches/=ww2xpp

With the small post on the XT, I just cut the big hole for the barrels and then let the small post form its own hole in the foam.

That automotive headliner seems interesting, I might have to try that.

dramsey · 24 Apr 2015, 16:48

fohat wrote: I used an antique 5/8" leather punch that I bought on ebay.

The barrels are 1/2" diameter, and I allowed the extra crescent of the cut to be diagonally down to the right to accommodate the "buttress" alignment tabs as found on the AT and 122-key styles.

How did you mark the foam for cutting? It looks as if you attached the foam to the upper plate and then used spray paint...

Touch_It · 24 Apr 2015, 17:16

I think a lot of people attach the foam to the back of the top metal plate and spray paint it. If you need to refinish it of course. If not I imagine the original foam would work as well if it is in decent enough shape. If not I think someone made paper templates for most Model F keyboards, for this purpose as well.

vivalarevolución · 24 Apr 2015, 17:30

dramsey wrote:
fohat wrote: I used an antique 5/8" leather punch that I bought on ebay.

The barrels are 1/2" diameter, and I allowed the extra crescent of the cut to be diagonally down to the right to accommodate the "buttress" alignment tabs as found on the AT and 122-key styles.
How did you mark the foam for cutting? It looks as if you attached the foam to the upper plate and then used spray paint...

Spray painting is one method. Another is finding the PDF files of the metal plates floating around this website that wcass created and taping those to the foam to punch the foam. I found that method to be more accurate.

dramsey · 24 Apr 2015, 18:19

prdlm2009 wrote: Spray painting is one method. Another is finding the PDF files of the metal plates floating around this website that wcass created and taping those to the foam to punch the foam. I found that method to be more accurate.

Hm. A quick look through the Wiki and the Photos section didn't turn anything up. Any idea where I should look?

0100010 · 24 Apr 2015, 19:22

wcass' post in this thread : http://deskthority.net/keyboards-f2/rep ... 33-90.html

vivalarevolución · 24 Apr 2015, 20:02

I know that wcass has also shared similar PDFs for the AT, XT, XTant, and Kishsaver, but I'm also not sure where to locate those. I might have them saved on my desktop somewhere. His Github page might have them as well.

XMIT · 30 May 2015, 05:07

I'm looking for a template for an F107. I've sent wcass a PM about this. If he doesnt have one I may draw one up myself. Should be easy to do in Inkscape.

Touch_It · 30 May 2015, 07:46

I also looked for one, but never found one. I would be interested in one. Need to add/replace the foam in mine. Fwiw I used the spray paint method and it worked well enough

chzel · 30 May 2015, 08:11

XMIT wrote: I'm looking for a template for an F107. I've sent wcass a PM about this. If he doesnt have one I may draw one up myself. Should be easy to do in Inkscape.

Did you try to contact orihalcon? He has restored a few F107s so he might have a template.

XMIT · 31 May 2015, 01:54

Turns out the F107 and F122 template are interchangeable. I think the F122 template is here already, or I can maybe share the one orihalcon shared with me via PM. Thanks for the suggestion chzel!

I have some leather punches on order that should be here tomorrow.

0100010 · 31 May 2015, 06:18

Try this : https://www.dropbox.com/s/udsisxxnsfq6y ... s.dxf?dl=0

Snufkin · 31 May 2015, 16:01

I think there was a thread about different types of foam mats, with links to various templates here (pages 2, 4&5). I had a go at using 3mm closed cell neoprene, which worked, but involved more clamps and hammers than ideal. 2mm would probably have involved less effort, and less revenge from the keyboard when I dropped the whole clamped assembly edge first on to my foot.