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#1
05-11-2016, 05:18 PM
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Took two goddamn months to get in three boxes of emery tape.....
So today I started with the resurfacing with the 240 grit. By the looks of it once the old electroplating is removed the surface is clean enough I can proceed forwards.   I noticed that the sanding was really scouring out some of the alignment pins but since I last reported in I got a nice digital caliper so I measured the positioning of the eight which were being hit the most and removed them. The process is currently extremely labout intensive and while it's doing a great job on one side the other isn't really sanding down. I'll see if I can form a bow and try again, or the plating is uneven. 
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#2
05-11-2016, 06:25 PM
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I screwed up.
While by all means the tension around the surface of the drum should be even as the tape is pulled back and fourth it was not. This has left portions where too much aluminum has been sanded off and there is nowan uneven surface. Dammit. I also discovered that there were more guides that were slowly being sanded away so the hell with it, I measured the position of the remaining 20 guides and removed them for safekeeping. NOW would be an awesome time to separate the two halves and just lathe the damn thing but again, the two halves are press fit together.
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#3
05-28-2016, 03:20 AM
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There is a guy in Holland who collects old Ducth electronics and I think you shoul write to him.
http://www.marcelstvmuseum.com/photoalbum0.html http://www.marcelstvmuseum.com/folde...s%20EL3400.pdf
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