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TRON JOYSTICK HANDLES (Recasting) PART 1
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Fozzy The Bear:
Xiaou2

        That's all because you used the wrong resins for the job you were doing, didn't mix them properly, in the proportions specified by the manufacturer, and didn't follow the instructions.

Most people have major and expensive failures when they do it that way.

Best Regards,
Julian (Fozzy The Bear)
RandyT:

Some of those clear "encapsulating" resins found in the craft stores are very difficult to work with.

From what I understand, the reason is that some of the stabilizing agents normally found in standard polyster resins have been removed to give it the crystal clear appearance.  I tend to think that this is true, as standard polyester resin is much easier to get a good result with, but is nowhere near as pretty to look at.

There are other water clear casting materials that work better, but they aren't as accessible or as inexpensive.

RandyT
ErikRuud:
Tackiness, Oily Residue, and Failure to Fully Cure ("The fruit roll-up effect" ) are usually caused by inaccurate measuring.  Brittleness can also be a result of improper measuring.

Read the labels carefully.  Some resins need to be measured by volume, and others are by weight.  Do not assume that a 1:1 ratio resin can be mixed either way.  The two parts often have different densities.  1:1 by volume resins are usually the easiest to work with, but not always the best for a given application.

Careful, Gentle mixing can reduce the number of air bubbles.

Pressure casting can greatly reduce the number of air bubbles.  Mainly by squeezing them down to microscopic size.

Done properly, Vaccum casting can pretty much eliminate all bubbles by literally sucking the air out of the resin.

Pressure and Vaccum require resins with longer open (working) times.

Pressure and Vaccum casting can be dangerous if not done with proper equipment.

koz319:


Found an interesting vid on casting with a silicone mold - I'd never seen it done before.



Can't wait for some Tron repros!

Koz
ahofle:
Wow that's fascinating.  That looks like some expensive equipment there though.
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