Originally Posted by speedracerntrixie
. . . Ollie may notice that this is going to be a 3 part mold with the wing saddle being the 3rd part. This is done to make the wing fillets easier to remove from the mold. The plug still needs to be sanded with 2000 grit and polished. If you guys are interested I will post pictures of each step of the mold production.
Yep, I definitely noticed. Am glad to see that, too. When I cast my P-39 production mold from my plug, as a two-part mold (left & right clamshell), I had one heck of a time getting the plug separated from the mold, and lost the thin, outer leading edges on both sides of my wing fillets in the process. Each molded fuse is therefore missing the defined edges and I have to round the fillets more in the style of a P-63's. No one has ever noticed (or, at least were kind enough not to comment on it), but I
know it is not truly
scale, and that bothers me to no end. I vowed to do three-part molds - just as you are doing with the wing saddle being the third section - from now on. I have no doubt you will be happier with the results.
I am definitely interested in seeing pictures posted of each step of your mold production. You already showed an interesting method for your parting surface. I've always used acrylic, but this is much too difficult to cut, sand, and shape accurately to the outline of the plug. I avoided wood due to the porous nature of it. I never thought to use scrap iron-on plastic covering for the "plastic" aspect of my parting flange. I hope to pick-up another little "nugget" from you, as you hopefully continue sharing your methods.