Dotting tools for applying paint dots. Sizes are 4mm, 6mm, 8mm, 10mm, 12mm in diameter. They are 80mm in length.

Yes

20%

I suggest horizontal printing as vertical printing makes them too weak to stand up to use. With horizonal orientation, I had a fair amount of trouble getting these to stay adhered to the bed even with supports and a brim. The larger ones worked ok but the smaller ones peeled off. I had good success making a square as shown in the picture. This probably balances out some of the cooling stress. I elevated the larger ones by 1mm and the smaller ones by 2mm and then let Simplify 3d apply auto supports. I also used a 10 layer attached skirt. After printing, little light sanding on the ends is all they needed. In white, they look a little like string cheese.