IC: Sorbothane Sheets

If huey isnt doing precuts yet im thinking ill just give it a shot by tracing the plate cutouts on the sheet with a box cutter

My thoughts exactly. I got some 3$ automotive insulation foam from Amazon to practice :slight_smile:

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Hi everyone,

Another small delay because i’m awaiting quotes for 60% precut plate sheets. These will be sheets that you can fit between your plate and PCB. They will be approx 2.5mm thick.

Once I get this quote I will commence the GB.

The GB will feature

6" x 12" sheets

12" x 12" sheets

and standard 60% plate cut sheets
(for now just standard, in future runs will have alternate layouts)

If get a standard 60% plate cut sheet, you could always make extra cuts to accommodate a WKL bottom row+ stabs, a stepped caps, and a split R_shift (and ISO if you’re about that…). Just be sure to be careful with your scalpel/box cutter/cutting instrument.

Sorry for the lack of updates, I hope to start this soon :slight_smile:

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Good News: GB Will commence this Friday

Bad News: No Plate Cut Sheets; the pricing is too high <insert a number between $100 and $200>.

I will still have the 12" by 12" as well as the 6" x 12" sheets. Everything will be shipped in bubble mailers.

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Nice. Too bad on the plate cut sheets, but on the positive side, using the GB to load up on raw materials will be great incentive to try a few experiments I’ve been meaning to do. Thanks for pushing this forward!

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Perfect !

I am an imbecile, but I wonder if there are folks in the community who could build a 3D printed “cookie cutter” that one could hammer on the sheets to punch them out ? or better, we could fashion something out of sheet metal ?

There… someone make it happen, and I’ll buy :slight_smile:

Gb when?

Sometime after I get home from work hehe.

Still at work for another 7 hours

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I think the question is not if you’re going to have interest… but if you’re going to limit the GB size. :slight_smile:

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Ready when you are…

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Any updates here?

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Hey guys, here’s a sound demonstration of a Klippe with and without the Sorbothane sheet. You can definitely hear the difference. To hear the keyboard without Sorbothane, go to around the :30 mark.

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How did you cut your sorbothane? Did you cut small patches and spread them around or just cut a large rectangle with stand-off holes?

I just cut it with a pair of good scissors. To make holes for the stand offs I used a hole punch from a grommet kit I bought at a hardware store.

sorbothane is difficult to cut straight consistently, even with a good pair of scissors or sharp razor. some alternatives I haven’t tried:

  • use laser.
  • freeze and cut.
  • cover with thick paper then cut.

in the end, I decided to just give up on tidyness and cut the sheet into small pieces and assemble.

Lasers don’t work. Fiber laser might work but CO2 is just going to melt the thing.

Waterjet cutting is advertised by suppliers so I assume that could work well, but I’ve been trying to do that with my school facility they’re such a pain in the ass to work with (the people in charge of the machine) I just gave up trying.

Maybe I should also just cut small patches instead of one large sheet.

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I found that if you leave it sandwiched between the plastic sheets it comes packaged in, you can make pretty clean cuts with a pair of scissors. While not perfect, it’s still pretty good.

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Makes a huge difference in sound in my Singa. I cut with a new pair of general purpose scissors after having in the freezer for like 20 minutes. It’s not perfect, but I was able to cut the shape I wanted and still kept the plastic on both sides of the sorb so it didn’t stick to the PCB.

Good idea sticking it in the freezer.