Duplo compatible mushroom

thingiverse

This fall, we've seen an abundance of different mushrooms in almost every location we visited. After conducting a quick search, we discovered that this is another custom piece that requires design and printing to work seamlessly with our Duplo toys. The toy consists of two main components: the "stem" and the "hat." STEM The stem is made up of two cylinders subtracted from one another, creating a "pipe." This controls the wall thickness. A small platform is then printed on top, followed by the repetition of this process with a smaller diameter tube. This serves as a knob where the "hat" locks in. The stem itself securely attaches to a regular Duplo block. HAT The hat is the top part of the mushroom and locks onto the "stem." Other projects: Terracotta roof blocks: http://www.thingiverse.com/thing:1428521 Adjustable Roof hinges: http://www.thingiverse.com/thing:1440521 How I Designed This Designing the Stem and Hat Stem The stem is created by subtracting two cylinders from one another, resulting in a "pipe." This controls the wall thickness. A small platform is then printed on top, followed by the repetition of this process with a smaller diameter tube. This serves as a knob where the "hat" locks in. All parameters can be adjusted to optimize for your printer or a different project. Hat The hat is created by cutting a sphere in half using a cube subtraction method. Further, a cylinder is subtracted from the bottom flat part of the hat, creating a cavity where the "stem" locks in. We developed two types of mushrooms: ones with cylindrical shapes (muchotravka_Public_EB.scad) and those with flatter hats (bedla_Public_ebreuer.scad). To create the flatter sphere, you may need to update your OpenScad to a newer version, which I had to do. The resize function does the trick: resize ([0,0,10]) sphere(r=hat_radius); Various Stems Determining Stem Height for Scaling When printed upside down (left), the hat will flatten on top. The flatter kind of mushroom (bedla) is shown on the left; the cylindrical mushroom (muchotravka) is on the right. Hat Being Printed Upside Down -- Not Recommended