6 Jan
2006
6 Jan
'06
4:46 p.m.
In the case of the Z-19, I think the root cause is
that only 1 of the
4 mounting screws for the tube in the case had a support bracket.
This is the only mounting post that didn't shear from the rest of the
enclosure. The other 3 posts sheared off at their base to the
enclosure. Some superglue should be able to reattach the posts to the
enclosure so that the whole thing will be "like new". So this might
be something specific to this enclosure design.
I would not use isocyano acryllic hydro-copolymerising adhesive. I've
never found it that good on plastics. The best way I've found to repair
most thermoplastiss is to get a suitable solvent (dichloromethane is
often suitable, it's sold by good model shops under the name 'Plastic
Weld'). Put the pieces together dry, then run a brush dipped in the
solvent along the joins.
Then, as I mentioned once before, strenghen it further by takening a
piece of cotton cloth, cutting it to fit over the repaired area on the
back, puting it on, brushing it over with solvent, and forcing it into
the softened plastic.
However, for something like a CRT mounting, I'd not trust that. I'd cut
off the original pillars, and smooth the inside of the case flat. Then
make new metal pillars, drill and tap them along the axis, and fix them
in place with screws from the outside. Conenct them to mains earth (or
similar), just in case something breaks down and makes the screwheads live.
No, it's not original, but then a CRT coming loose is not particularly
pleasant.
-tony