Here we go with the second half of the experiment, I also tried to use Easy Mold Silicone Putty to create several molds. This stuff is quite different!
It comes in two containers and instead of mixing the components you just cut it out (1 to 1) ration and mead them together with your fingers, then press the putty around the object you want to cast (in this case the grot turret above) it only takes about 30 minutes to harden, it is not nearly as flexable as the previous (blue) stuff from part 1 but you can still get a bit of detail out of it.
Here are what the molds look like using the silicone puddy (puple), they work ok for simple things, but the turret would be the most complex I would try, also if you compleatly engulf the object in the puddy it is too thick to work out any air holes, I learned this the hard way, and with it being so much stiffer, its hard to get the original object out, this work best for doors and plates and simple 3d objects, but works!
Here is what the molds look like for the turret (in the center) above.
It comes in two containers and instead of mixing the components you just cut it out (1 to 1) ration and mead them together with your fingers, then press the putty around the object you want to cast (in this case the grot turret above) it only takes about 30 minutes to harden, it is not nearly as flexable as the previous (blue) stuff from part 1 but you can still get a bit of detail out of it.
Here are what the molds look like using the silicone puddy (puple), they work ok for simple things, but the turret would be the most complex I would try, also if you compleatly engulf the object in the puddy it is too thick to work out any air holes, I learned this the hard way, and with it being so much stiffer, its hard to get the original object out, this work best for doors and plates and simple 3d objects, but works!
Here is what the molds look like for the turret (in the center) above.
The image above is the very first casting that I did, I really screwed it up, When you mix the casting urethanes together, you have to be very very exact on the ratio ( 1 to 1) (I did it by eye and that was not good enough!). If you do it wrong the cast will not solidify properly (even when baked), and will make a mess, one piece(below) looked ok coming out but after leaving it overnight in front of the TV it ejacuated during the night! ewww.
No kidding it spoooged on its own!So, I measure the amounts exactly, then mixed for 30 seconds, it also gets very warm, then poured it quickly, you have about a minute before it turns white and starts to solidify and it can start to do this as you pour, so go fast. I also had to open up the molds a bit to make sure the urethane poured into all the small holes and parts!
Once I mixed and poured correctly, I have not had a problem with the castings, above is one big set of tracks, bodies and turrets,
Above is using a large file to get rid of some of the extra plastic and to make the back side smoother and easier to mate the parts, works fast,
making lots of tank bits!
Here are some up close pics to show some detail, some of the pointy parts are not making through the system, but I can add my own parts, and some casting made some holes here and there that are easy to fix, these are grot tanks so the more damaged they are the better they looked, which is why I am testing theses first!
My little helper!
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