This was my 1st mold. I chose Kevin's Tauron Cubit as a test.
Any idea how I could have done this better?
Just to piggyback on
little draco's comments:
You did indeed forget the hole to actually pour your resin into.
You'll also want to incorporate an air vent hole or two at the highest points of your object. Once you start pouring resin, the air you displace from inside the mold has to go *somewhere*...if you don't vent it, it's going to stay inside and create huge voids in your casting.
Ideally, for something that shape, you will want to create a mold something like this:
The pink represents your silicone, the blue is your object, and the black lines represent your pouring/air vent tubes. As you pour (slowly!) the resin into the center tube, the air can escape through all three tubes until it reached the top. When you can see resin coming up out of all three tubes, you're more or less good. You may still have some small bubbles, but nothing like you'd have with an unvented mold.
Also, when initially making the mold, you want to pour the silicone from as high an altitude as you're comfortable with, letting just a very thin ribbon fall instead of a large glop. Pour it into a low point rather than directly over your object. If you let it build upward instead of flowing downward you'll get a much smoother mold. Again, as was said, brushing silicone into the details of your object before pouring the rest will also make a huge difference.
I'm not an expert at mold making by any means, but I've done some small stuff in the past, and this was the wisdom passed on to me. Hopefully it will help you out a little.
