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geekhack Community => Keyboards => Topic started by: joerush25 on Fri, 15 November 2019, 11:50:31

Title: Help with Model M Re-Assembly Order
Post by: joerush25 on Fri, 15 November 2019, 11:50:31
Hello!

I took apart my model M to Bolt mod it but did not take note of the order of the membranes / rubber sheet, and was wondering what order everything goes back in?

So from top to bottom would it be like this?


Thanks!
Title: Re: Help with Model M Re-Assembly Order
Post by: fohat.digs on Fri, 15 November 2019, 14:40:07
Pretty sure that the rubber mat rests against the metal plate.

Looking at the clear sheets, the one with holes is what creates the space preventing the contacts on the printed ones from touching unless pressed together, so make sure that the printed traces will make contact when pressed together.
Title: Re: Help with Model M Re-Assembly Order
Post by: joerush25 on Fri, 15 November 2019, 14:53:15
So this is my main hangup right now, I'm still unsure if the rubber sheet goes touching the plate or the barrel assembly.

You're correct in saying that the clear sheet prevents the contacts from touching, but what difference would that make if the rubber mat was on top vs on bottom?

Thanks for the response though, open to other perspectives too. I literally cannot find any clear video of somebody taking apart the model m online so I have no point of reference.

Can someone please tear down a model m for me so we can solve this?! haha
Title: Re: Help with Model M Re-Assembly Order
Post by: joerush25 on Fri, 15 November 2019, 14:58:06
I think I found my answer:

https://www.instructables.com/id/IBM-Model-M-Disassembly-and-Repair/#step5
Title: Re: Help with Model M Re-Assembly Order
Post by: fohat.digs on Fri, 15 November 2019, 16:57:58
If nothing else, traces could short to the metal plate, as well as its function to cushion the pivot plate ("flippie") pressing down.