figurine in a dice

thingiverse

# Figurine in a dice ## Balanced dices Dices are balanced, figurine's center of gravity is put in the center of the dice. If you want to keep the dice balance, print it with 100% of infill. Sources here: https://github.com/yannickbattail/openscad-models/tree/main/animal_dice If you want to create another read the part: "how I made them" Don't forget to post a make. ## models - dragon https://www.thingiverse.com/thing:1291987 - fox https://www.thingiverse.com/thing:1736162 - cat https://www.thingiverse.com/thing:5035825 - dino https://www.thingiverse.com/thing:913069 - panda: https://www.thingiverse.com/thing:182239 - heart gem: https://www.thingiverse.com/thing:2452845 ## how I made them Copy model to `animals/heart_gem.stl` Install numpy-stl if needed ```shell pip install numpy-stl ``` launch the "center of gravity" script with the model as parameter ```shell python get_center_of_gravity.py animals/heart_gem.stl ``` Output of the script: ```text Volume = 117.31810242698218 Position of the center of gravity = [3.84325029e-03 1.01203855e+00 1.12715415e+01] ``` add it in the code, in the module `animal()` duplicate an animal line 95 ```openscad else if (animalName == "fox") { animalModel(file = "animals/foxLowPoly.stl", scalePercent = 1, centerOfGravity = [- 14.18385003, 4.57492739, 75.20926315]); } ``` change file and centerOfGravity ```openscad else if (animalName == "heart_gem") { animalModel(file = "animals/heart_gem.stl", scalePercent = 1, centerOfGravity = [3.84325029e-03, 1.01203855e+00, 1.12715415e+01]); } ``` in line 2 add heart_gem ```openscad part = "fox"; // [fox, dino, dragon, cat, panda, heart_gem] ``` Open the file dice_animal.scad in openscad and choose in the customizer animal : heart_gem Change the variable `scalePercent` so the model fit inside the dice. (Note: check every faces) For the heart_gem, the model is upside down, so I add `rotation = [180, 0, 0]` The final code is: ```openscad animalModel(file = "animals/heart_gem.stl", scalePercent = 0.7, centerOfGravity = [3.84325029e-03, 1.01203855e+00, 1.12715415e+01], rotation = [180, 0, 0]); ``` > See every changes for adding this model in this commit [5f048454d40d1761096770d57f2074d0c837404c](https://github.com/yannickbattail/openscad-models/commit/5f048454d40d1761096770d57f2074d0c837404c) Render the model to check if everything is ok. Print it with 100% of infill to keep the dice balanced.