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Post by Mastercaster on Oct 24, 2011 10:43:42 GMT -8
Here are a couple of pics of the mold for the cab. I didn't learn anything from the toilet plunger project! It really is better to slightly indent the clay in the window openings. I also forgot all about putting a block of foam in the interior to aid in de molding a fresh part. I had to whittle a hole in the plug.
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Post by FMW on Oct 24, 2011 12:39:41 GMT -8
It's been said before but it's worth repeating:
Good judgement comes from experience. Experience comes from bad judgment.
And for the rest of you:
Learn from the mistakes of others: you don't have time to make them all yourself.
FMW
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Post by Mastercaster on Oct 29, 2011 20:08:34 GMT -8
MAN!! This thing is really getting to me! I have spent the last few days hoping to get a good pull out of this mold. I think I have it filled up properly now. Some were hollow in places. One was missing the back part of the cab. One had some areas where the resin did not cure. I opened up another gallon kit of resin and had to do some equipment clean up. I am hoping this one will be a keeper. I capped the open end of the mold with silicone. I am hoping this will make a difference. I first tried to pour the resin in the open end but found it was leaking out of the bottom. I wrapped duct tape around the top and poured in the silicone.
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Post by FMW on Oct 29, 2011 20:30:20 GMT -8
I always held my molds together with cardboard and rubber bands, but mine were a lot smaller. Maybe you can use plywood or masonite and bungie cords or something.
FMW
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Post by Mastercaster on Oct 30, 2011 9:16:43 GMT -8
Typically I don't need to hold them together with anything. They lay flat. This is just a different mess. Hopefully it will work like the others do now that the end is closed.
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Post by Mastercaster on Oct 30, 2011 12:47:34 GMT -8
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Post by johnteresi56 on Oct 30, 2011 13:06:18 GMT -8
Greg......look`s GREAT!!!!!
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Post by Mastercaster on Oct 30, 2011 15:07:00 GMT -8
Thanks, John. I sent you a PM Here is another one. It is not quite as nice but useable. Notice the dark spots and swirls. This is uncured resin. How does this occur?? I have no idea. Sometimes this stuff just seems to refuse to blend together. I stir the crap out of it and sometimes it is like this or worse. I just don't get it! This is picture number 42 and this has been read 598 times. This must be a hot topic!
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Post by davewilly on Oct 31, 2011 6:49:54 GMT -8
Yeah Its a hot read!! Its pretty cool I cant wait til its ready to build. It will be a cool transport rig
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Post by Mastercaster on Oct 31, 2011 10:40:35 GMT -8
Here is a good example of one that turned out really bad. Looks like TKM stuff. There is a soft bump on top too.
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Post by Mastercaster on Nov 3, 2011 10:11:06 GMT -8
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Post by lannyhaas on Nov 3, 2011 12:30:38 GMT -8
WOW Greg I have a new understanding of resin casting..It's an art form... scratch building to the power of X
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Post by FMW on Nov 3, 2011 15:32:54 GMT -8
It would never have occurred to me to form white resin into a master for a clear piece. Brilliant!
FMW
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Post by Mastercaster on Nov 3, 2011 18:19:43 GMT -8
I'm an in gan eer! Here at Shartin Looms Labs we are full of ideas, we are full of talent. But mostly we are just full of crap! LOL But seriously, this project has been a challenge. I hope the tires turn out good. I have had some resin that will make the black rubber tires. I sure hope it's still good. It has never been opened and it's been around for awhile. I bought it from AeroMarine. Fortunately for me I found out early on that it did not take a lot of heat to make the 300 bendable. I didn't want to handle a master made out of clear resin a lot and it would take a few days to turn one out of the mold . I was afraid that a lot of handling might scuff it and so far my experience is still limited. Polishing it is troublesome too. The SMOOTH-ON Task 8 that I use would take a lot of heat to make it bend, it is more like styrene.
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Post by danschevelle on Nov 3, 2011 21:41:27 GMT -8
Shartin Looms Labs? That's the funniest thing I've heard all day!!
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