<div class='quotetop'>(voice in the crowd @ Jun 24 2006, 01:22 PM) [snapback]1267228[/snapback]</div>
<div class='quotetop'>(gonk27 @ Jun 24 2006, 11:06 AM) [snapback]1267182[/snapback]
<div class='quotetop'>(voice in the crowd @ Jun 24 2006, 09:54 AM) [snapback]1267180[/snapback]
Great pics. thanks for sharing.
Just food for thought - why would they have bothered plating the inside of the helmet when there is no need to?
Cheers Chris.
[/b]
I think that's just because pieces that are vac mettalised are suspended in the machine's chamber during the process which means every exposed surface can't help but get covered. They just didn't bother masking off the inside coz it didn't matter.
Jeremy
[/b][/quote]
Hi Jeremy,
I was half joking when I wrote about the food for thought why was the inside plated but they really didn't need to plate the inside if they didn't want to.
I worked on evaporators and sputter tools for a fair few years and the way the material is deposited onto a surface is very much a controlled directional process. This has been plated on both sides intentionally possibly just to make sure that all the surfaces are covered like through the eye sockets and around the edges maybe it was to get a full coating to stop peeling at exposed areas as well. It has maybe been in an evaporator that has the ability to rotate the pieces during processing to get an even distribution of metal all over the entire piece. If they had only wanted one surface done the could easily have done that. The prime example of this is road sign mirrors for seeing round corners and compact discs that get the same type of vacuum process.
It may have been dipped but I wouldn't have thought so but on the other hand I wouldn't put a bet on it not being dipped without solid information.
Possibly this is a question for the Elstree guys about how they plated it.
You can see inside the faceplate at the bottom were the deposition is not on the helmet that is were it has been held. I can't see clearly on the cap piece.
Anyway vacuum metalising isn't quite as clumsy and random as a blaster
Cheers Chris.
[/b][/quote]
Aha, I see. Sounds like you certainly know your stuff Chris
Myself, I'm not very knowledgeable about these sort of things, (well not on this planet anyway.)
Jeremy