Approx. dimensions:
BOX A: 9.5cm. x 9.5cm. x 8.5cm. high.
BOX B: 11.5cm x 6.0cm. x 8.5cm. high.
BOX C: 10.0cm. x 10.0cm. x 7.5cm. high.
BOX D: 10....25cm. dia. x 7.6cm. high.
BOX E: 10.0cm. x 10.0cm. x 7.5cm. high.
BOX F: 13.0cm. x 10.0cm. x 7.5cm. high.
The models in the photos were printed on my Makerbot Replicator+ at the default setting of 10% infill and a layer height of 0.2mm. I used rafts, but no supports are needed when the parts are printed in the same orientation as the STL files shown here.