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Thursday 7 October 2021

Day 570 of self-isolation - Model M reassembly

Model M reassembly

I've put all the buckling springs back in place - there are four places that are empty, but I marked those when I took it apart. Then I laid the various plastic layers down, in the correct order. And then I started bolting the black plastic keyframe to the metal back plane.

I'm hoping that the carbon paste will give a low enough resistance for the keys to all work, but if it isn't good enough, the silver paste has just arrived; I can wash off the carbon and try the silver instead. I got 93 ohms using the black carbon, and the other ones that were unbroken are about 36 ohms. So I'm hoping that a current that's a third of the normal level will be good enough.

I've installed about a dozen nuts and bolts out of the 57 total. I'll do more tomorrow, but I think I've done the most difficult part now.

Also, I've done my quarterly VAT MOSS return via the Irish tax web site, and paid the tax.




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