Dodecagonal Wave Planter

thingiverse

Concrete Planter. Sides and interior part must be rotated 180 degrees around the Y axis in order to avoid needing supports - widest side always at the bottom. GCode created with Slicer PE, using a 0.3mm layer height. For the sides: five or more perimetral wall layers are needed to make it strong and last many casts. For the interior part: 30% infill is designed with a drainage hole that acts as a plunger to tap it free with a rod and a hammer, making demoulding easy. The square on the bottom allows for inserting a ratchet wrench and rotating it to release - though this method didn't work well, hitting the drainage plunger with a rod and a hammer is recommended. Remember to cover the mould with a good layer of vaseline, or you won't be able to take it apart. Sides and interior part took almost 18 hours each to print, which is a big job but also worth it. A mix of four parts concrete to one part water was used - adding water until the consistency is similar to raw cookie dough is the rule of thumb. Happy making! UPDATES: - Some clamps have started to crack and break. Instead of using them, clothes pegs can be used to hold the mould together. This option is recommended over clamps. - The plunger end broke due to hitting it with a hammer. A steel rod (like an ratchet wrench extender) should be used instead, and at least four perimetral layers with five top layers are needed to make it stronger. - With regular PLA, these molds last exactly five castings before developing catastrophic cracks. Using PETG as the printing material is suggested for lasting almost forever.