[simpits-tech] Ejection handle

[Marv De Beque]

John,

There is a product that is called "Dip It" that most hardware stores sell.
It is a rubber-like plastic coating for tool handles.  It is liquid and you
simply dip the part into it and it sticks like honey.

It cures to about the same durometer as a medium hard rubber.  Should come
in yellow and other colors.

The very core of the real handle is actually a stainless steel cable to give
it strength.  Your idea of an automotive belt is actually a pretty cool idea
since they are very strong.

If you like artsy-crafty things, you could make a mold of the handle.  Start
with a balsa wood carving and then make a two-part mold from clay.

There are several types of modeling clay available that will harden.  Make
each mold half so it interlocks with each other

Pour in a silicon rubber into the mold and submerge a metal cable from a
bicycle hand brake.  The pour is a little tricky to make sure no air is
trapped inside.  Die-hard hobbyists use a vacuum chamber to remove bubbles.

Silicon will take a long time to cure on its own.  It relies on moisture to
cure and since it is encased in a mold it may take many days to cure enough
before demolding.

There are a host of 2-part silicones of varying durometers you can buy from
hobby/craft stores that cure in 24 hours and do not have problems with
curing like store bought silicon.  However, they may be a bit pricy.

If you make a mold, coat it with Vaseline before your pour.  Heat the
Vaseline first and apply a light, but full coat as a release agent.

There are lots of sites on the web about casting and mold making.  It is a
lot of fun.

Also, talk to your dentist buddies!  They may be able to get you some
supplies for free.  In return you could make D handles for their dental
chairs.  Give the customer something to yank on when it gets too much for
them!!! :-)))

Marv

On 4/8/04 5:53 PM, "Inventmd at aol.com" <Inventmd at aol.com> wrote:

> Hello all,
> Just wondering if any of y'all do it yourselfers have tried to build your own
> ejection handle for the Aces II.
> I figured on using a rope or broken rubber automotive belt as the core and
> curing yellow sillicone caulk all around it.
> After it cures, cutting it to shape with an x-acto knife.
> Sound silly or viable?
> Anyone out there have dimensions or drawings??
> 
> John
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