Duplo compatible 2x2 90 degree plane change block
thingiverse
My niece started playing with Duplo blocks and I was surprised to find out that there aren't any blocks that allow you to change the plane orientation in the normal sets. This makes things like attaching propellers quite ridiculous. I didn't find any suitable parts on Thingiverse, so I made this version which prints as two pieces and then needs to be epoxied or super glued together. It's intended for PETG printing, but you may need to adjust the tolerances for your printer (use the attached STEP files for parametric adjustment). The fit is as tight as the original Duplo blocks. * Recommended material: PETG (PLA isn't flexible enough for a good fit and ABS shrinkage is terrible). * Recommended layer height: 0.15 - 0.2 * Recommended perimeters: at least 2 * No supports are needed * Give the short side of the block (it's about 1.5mm shorter from the pegs to the edge) and the back of the flat piece a quick sanding, then attach with either super glue or epoxy (I used cheap epoxy since it's less brittle).
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