[41] A fix for the broken posts problem
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05-03-2015, 05:29 PM
(This post was last modified: 05-03-2015 05:35 PM by emece67.)
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[41] A fix for the broken posts problem
This is how I've fixed (I hope) the broken posts of a 1981 C. This is the state of the posts prior to the repair. As seen they were severely damaged, if fact cut in half and even split in several pieces:
The parts I've used are: They are:
In retrospect I think now that these measures are larger than the ideal ones, perhaps M2 screws/nuts/washers and M3 pins would do better. I've used M2.5 because I do not have at hand long enough M2 screws. But the next time I'll use the smaller ones. For those people across the ocean, M2.5x20 means 2 mm thread diameter and 20 mm overall length, I think that an equivalent is #3x3/4 or #3x7/8. M2 would be #2. Next time I'll also look for Philips pan head screws. As tools I've used: that's a Dremel with a cylindrical drilling bit and cutting discs (that I also used to grind). You'll also need epoxy glue and a not so strong glue capable to bind metal (I've used GS Hypo). The first step consists in drilling the remaining posts. Do not get very deep, around 5 mm (3/16'') is enough. The idea is to insert the nuts into those holes. I've used adhesive tape to protect the vias of the keys in the PCB from dust. Perhaps a bad idea (see here), next time I'll use another material as a protective barrier. |
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[41] A fix for the broken posts problem - emece67 - 05-03-2015 05:29 PM
RE: [41] A fix for the broken posts problem - emece67 - 05-03-2015, 05:30 PM
RE: [41] A fix for the broken posts problem - emece67 - 05-03-2015, 05:33 PM
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