I have made a start on my new clears for the V3. Rather than pull the shoe apart, I am going to be molding this as a glove and jacket system, slush cast a master parts and then make official molds after I am happy with the casts in D65 plastic. That way I can wear my shoes in the meantime. Yes I am learning.
I started with a product normally used for lifecasts called Pinysil OddBod. This is semi gel state product designed to cling to vertical surfaces. It can capture great detail, but because it was so dam hot today (37C) and this stuff's pot life is too short to degas, so it can trap air and I also had to mix it is smaller batches and could cover the shoe in one go.
http://www.therpf.com/attachment.php?attachmentid=688465&d=1481010204
http://www.therpf.com/attachment.php?attachmentid=688466&d=1481010204
http://www.therpf.com/attachment.php?attachmentid=688468&d=1481010204
If you mix your silicone properly, the left overs should just peel out of the mix pot when it is cured. The same goes for the parts where it should just peel off like a skin.
http://www.therpf.com/attachment.php?attachmentid=688467&d=1481010204
As you can see from this close up, air bubbles. So I am rejecting these molds.
http://www.therpf.com/attachment.php?attachmentid=688469&d=1481010204
2nd attempt using the good stuff.
http://www.therpf.com/attachment.php?attachmentid=688470&d=1481010204
http://www.therpf.com/attachment.php?attachmentid=688471&d=1481010204
This is Vario-40. This stuff has a really long potfife (again shortened by the heat of today) but still long enough to degas. Unlike the OddBod which wants to glug out, the Vario is quite thin and pours in a thin stream. If a bubble is created by over pour (pouring over itself), it will generally rise and pop on its own with this stuff and why I love it so much. It self levels and has a shore of A40 vs OddBods A25.
What I have done here is to make a complete "print coat" (only 100g per shoe). This will take a few hours to set up, so I won't be able to do any more on them until tomorrow. Tomorrow, I mix up more and I simply pour layers until I get about 1/4 thick on the base, then I turn the shoes on their sides. I can add the next layer every 20min, so should be able to knock these out by tomorrow after noon. Notice no bubbles on the print coat. This means the final mold will be perfect. YAY!