[roystur44]

Here's a suggestion. When milling parts on a cnc we use some material to hold it in a vise and mill it off after one side is complete. Try a similiar concept by making a starting base to get the material flowing through the nozzles then start making the part a little higher on the part then mill or sand off the base part. Use micro joints to hold the part then break off the micro joint once the part is made.

Roy