Anti-tank hedgehog 3D model

The detail is nice regarding the bolts but I printed these on a photopolymer printer at 1/35 scale and the beams are paper thin and warped almost like crate paper. Maybe this is too small a scale for this model? The beams are almost like flash found on a stamped/injection-molded model. I can print it on a plastic printer with ABS but I won't get as high a resolution and I fear the walls would only be one layer thick. If the sidewalls were thicker it seems it would be a much more stable and realistic model. If I could use a "thicken" command to beef up the sidewalls I believe this model would be much better. Any input from others/creator/etc., is much appreciated.