8 Jan
2006
8 Jan
'06
10:56 a.m.
Tony Duell wrote:
I have never had a glued repair that is as strong as the original, and
since the mounts cracked ones, they could easily crack again. And a CRT
coming loose is not pleasant!
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.
I think I'd go with fixing the original mounts before I tried the above suggestion. The above would require pretty good
machine work, and after
Is it really that hard to drill a hole along the axis of a cylinder? I
would have thought a 3-jaw self-centring chuck would have been accurate
enough for this sort of thing (I wouldn't bother trying to centre the
work in an indepenedant chuck). And drill with a twist drill in the
tailstock chuck.
is all said and done would probably be more delicate.
Metal pillars
would transmit all shock directly to the outside plastic of the case,
potentially cracking it or punching a hole through it. The plastic
pillar would likely be tapered, so they could be wider at the base, and
So make tapered matal pilars. Make the base as wide as posible (maybe even
wider than the original plastic pillars), and put a decent-sized washer
under the screw head on the otehr side. That should spread the load quite
well.
-tony