I am trying to print custom Lego-compatible blocks using PLA on an Ultimaker 2 for an engineering project. The blocks are designed to have the male Lego studs along two adjacent edges and female along the other two, as shown below.
Obviously, the precision needs to be quite high for these pieces to mesh together, and I am having problems in two areas:
1. The first problem is with overhangs. If I print the piece lying flat as shown in the CAD drawings above, drips form on the underside of the rim above the female studs that prevent the male studs from fitting in, as shown below on the le