|Re: Voyager hp-15c logo gone missing..|
Message #8 Posted by uhmgawa on 19 Sept 2010, 12:52 p.m.,
in response to message #7 by David
wow, if this is something easy for you to do, I would like to get a custom one done for a highly modded voyager project that I am doing.
It is essentially straightforward to do. Being "easy" is more
subjective but after rattling around with this for about a day
I can see three approaches:
1. Directly mill it from Al sheet. This can be via CNC or even
a one-off dremel in a pantograph following a hand cut template
fabricated in more relaxed dimensions.
2. Create a mold from an existing logo in either plaster or
thinned joint compound. Getting the master logo is likely the
rub but one could also be created from a softer material such
as delrin or even machinable wax. I think this has some merit
as the engraving operation potentially needs to be performed
only once and assuming the finished logo external perimeter is
also part of the casting the remaining work can be limited to
some minor dimensioning with a simple sand paper jig.
3. Chemically etch the pattern/relief. The familiar laser
toner transfer may work here. I'm concerned about undercut
etching particularly given a deep 0.2mm relief but some
simple experimentation might be worthwhile. FeCl eats Al
with spectacular aggression so it may be entertaining as well.
The artwork can be created with any suitable CAD/drawing tool.
Note you don't need particularly pristine cast/milled surfaces
initially in the logo. The relief is painted in flat black,
and when finishing the logo, its display surface will likely
be cut in abrasively to remove the surface paint overspray and
true it flat and parallel to the base. You can likely get a
mirror surface if that's what you're after. I'd probably leave
some brushed texture on it to hide the inevitable wear as it
projects beyond the bezel and is a magnet for scuffs and dings.
Then again the solid Al body isn't going to have anywhere near
the fragility of the original painted/plated ABS gem.
I'll get around to it at some point. I'll certainly create
a mechanical drawing and post it here. If others are inclined
to poke at it before I, please do share your results.
If you don't already know, the original badge is a hollow injection moulded piece, affixed with a piece of double-sided foam tape.
Interesting. The new 15c casualty and my existing pristine 16c
seem to have remains of an RTV type compound on the body in the
perimeter of the logo. Would have dismissed it on the 15c alone
as a repair attempt. Dunno.
I still cannot understand why HP didn't put a little more thought
into this cosmetic Achilles Heel of the voyager series, given it
carries their logo. Even an Al die stamped version would have
been routine manufacturing back then IIRC.
BTW your mention of a "highly modded voyager" up there caught my
curiosity. Might you have a pointer or otherwise mind describing
what you've done?
Edited: 21 Sept 2010, 1:17 a.m. after one or more responses were posted