Homebrew PCBs

Phil,

I can't speak for the H200, but from the point of view of the H300, the mods
are useless.  I can't for the life of me figure out how it alters anything.
Had you tried passing a 1/16" PCB through the H200 before the mod?  I would
have liked to know if you observed ANY before and after difference.

I know the H300 and 200 might not share the same construction and framework,
but I don't think that's the case.  I think they only difference if width of
the rollers.  I think they share the same mechanism, it wouldn't make
business sense to have so many different frames in a line of products (just
change the frame and roller lengths).  The pics in the Pulsar directions
'appear' to be identical to my H300 except for size.  I suppose you need
both laminators side by side to say for sure.

Before you start cutting plastic on your 200, take it apart for yourself.
Look at how the rolls are attached to the chassis; that shiny metallic
framework that takes up most of the space.

The only mod that might do 'some' difference is the cutting of the tab, it
might give the mechanism a bit more play when you push on the tab.  That
might give you more movement of the rollers to get a stuck PCB out of the
mechanism, but that's about all I can figure out.  All that tab does is
rotate a gear using a small tooth.

1/32" PCB went through the H300 beautifully.  I made one mistake, I used a
piece of paper to act as a carrier; as suggested on the H300 casing.  Big
mistake, I think the carrier prevented adequate heating of the transfer
material.  It is most obvious along the edges of the PCB, the toner easily
flakes off a perfectly clean board.  I believe the extra thickness of paper
relieved roller pressure along the sides.  The center area of the artwork is
perfect, no flaws.

I'm making another test tonight after my online race (woohoo, I love it).
I'm cleaning the toner off with acetone and starting the process over.  I'll
post a pic of my first good PCB, all my attempts so far are embarassing...

Robert
:)


-----Message d'origine-----
De : Homebrew_PCBs@yahoogroups.com [mailto:Homebrew_PCBs@yahoogroups.com] De
la part de Phil
Envoyé : juillet 23 2005 16:53
À : Homebrew_PCBs@yahoogroups.com
Objet : Re: RE : [Homebrew_PCBs] Experimental method


Robert, have you mod'd the GBC for thicker material?  The pulsar directions
are ok (just ok) for the 200.  I would not force the laminator too hard, the
plastic gears on the 200 do not look like they can handle much stress.

I believe that .032 PCB material goes through and unmod'd 200 just fine.
I've fed it myself and there was aposting about 6-9 months ago on that topic
as well.  I may have some .032 -- need to check my stock.

Phil


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