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| TRON JOYSTICK HANDLES (Recasting) PART 1 |
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| Fozzy The Bear:
--- Quote from: Brax on May 12, 2006, 12:14:13 pm ---Is there a theshold for how much Thixotropic Agent you can use depending on the complexity of the part? Could it ever impede it from running into all the fine detailed bits or is this unlikely? --- End quote --- Yes there is.... In this case it's 5% but that only applies to this particular brand (check with your supplier for other brands and ask them to provide data sheets). If you do add 5% you end up with something that is about the consistency of butter, and you can then apply it with a palette knife. So you would still be able to get it into all of the details, if you did that. Best Regards, Julian (Fozzy The Bear) |
| rdagger:
For people who want to try it themselves, I just had some luck casting some volcano lens. I used Alumilite which is kind of expensive, but I found another casting resin by Environmental Tech that is much cheaper. I haven't tried it, but it looks good. It comes in clear and there are dyes including translucent blue. They also have a translucent pearl that would be cool or maybe you could make a red, white & blue stick. To eliminate the bubbles, I've been curing the resin in a paint tank pressurized to 45 PSI. I should have taken some pictures of the process, but I have had so many failures that I stopped filming. |
| Brax:
Julian, Since "very little sticks to silicon rubber" won't you have trouble with the plaster of paris mother mold sticking to the silicone rubber mold? Do you have to laminate or tape them together or do you just let gravity do its bit? I'm also interested in seeing how you get the resin into the two piece mold. This is better than tv. 8) |
| Fozzy The Bear:
--- Quote from: Brax on May 13, 2006, 06:53:18 pm ---Julian, Since "very little sticks to silicon rubber" won't you have trouble with the plaster of paris mother mold sticking to the silicone rubber mold? Do you have to laminate or tape them together or do you just let gravity do its bit? I'm also interested in seeing how you get the resin into the two piece mold. This is better than tv. 8) --- End quote --- Usually you just put a couple of rubber bands around the whole mold set.... that's the two outer mother molds and the two inner rubber ones. You don't want to squeeze it too tightly otherwise the rubber will get distorted and the finished object will get a bit squashed in shape. There are a couple of methods for getting the resin in there. I'll try and illustrate all of them when we come to do the casts. There is one thing about "resin in and air out" that I just noticed I forgot to document in Part 1.... I'll make sure there's a note on that in Part 2 Best Regards, Julian (Fozzy The Bear) |
| ErikRuud:
--- Quote from: Fozzy The Bear on May 13, 2006, 12:27:28 pm --- Translucent Blue... and possibly Red as well...... UV Reactive, ermmm don't know yet! I'll take a look at that. Best Regards, Julian (Fozzy The Bear) --- End quote --- Possible leads on UV Pigments. http://www.dayglo.com/products_nightglo.asp (Untested) http://www.specialtycoatingschem.com/pg-3.htm#k-color (Reccomended by http://www.lumicast.com/) http://eagerplastics.com/7702.htm I got these links from a discussion on the Yahoo Casting group. The first one had not been tested by anyone on the group. The other two were reccomended by peopl that had actually used them. |
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