To make this look awesome, you need 5 different colors (you don't need a multimaterial printer though). I recommend silver for the metal parts (vdd.stl, vss.stl, via.stl and out.stl), the other parts can be printed in whatever colors you like, but the bottom left "welltap.stl" and the top right "diff_p.stl" as well as the top left "welltap.stl" and the bottom right "diff_n.stl" should be the same color. The two "poly.stl" should also be the same color.
In total you need these parts:
- 1x bulk.stl
- 1x vdd.stl, vss.stl and out.stl
- 2x welltap.stl (in 2 different colors)
- 1x diff_n.stl
- 1x diff_p.stl
- 2x poly.stl
- 7x via.stl
I printed everything in 5 prints:
- bulk.stl (white PLA, upright, 15% infill, ~3h)
- welltap.stl + diff_p.stl (red PLA, flipped, 10% infill ~20min)
- welltap.tl + diff_n.stl (yellow PLA, flipped, 10% infill, ~20min)
- poly.stl (green PLA, flipped, 15% infill, ~30min)
- vdd.stl + vss.stl + out.stl + 7x via.stl (silver PLA, flipped, 15% infill, ~1.5h)
Everything should just snap together, but I added some glue to make it more stable. The connections on the poly-blocks are very thin, so some printer might have problems. Just glue them straight to the surface in that case.