A piece of KS brass tube makes a great axle captured between two pieces of plywood.
For the mold, it is already waxed. I use PVA for release film but there are easier products to use. I understand Loctite 700-NC works great, 700-NC
. I plan to purchase this product next. Cut a piece of glass cloth and wet it out in the mold with epoxy, dab up any pooling resins with a paper towel. Cut the glass a little larger than needed. Allow to cure and pull the part out. Start over. I have found that one layer of 6 ounce cloth is not sufficient, for the parts on the Cherokee, I used a layer of 4 ounce followed by a layer of 6 ounce. I wet the four ounce out and let a partially cure then put the 6 ounce layer on while the 4 ounce was still tacky.