Could not get screw holes and other openings to print to size (cheep filament and too impatient to print at low speed!), so my Dremel Mini got a good workout cleaning up the prints before assembly. Other than that everything went smoothly and I now have a nice little paddle for my portable QRP setup.
Depending on how poor your bridging is, you may want to print the base with support so that the recess for the ground post and wire comes out clean (mine was a bird's nest). In the paddles, the contact screw hole and the dimples to hold the spring tend to come out ovaled, so you might try laying them down and printing with support as well. (That will probably oval the pivot hole, but you're going to need to drill it a bit anyway.)
3D Hero PLA