The 3D files for this project can be downloaded by clicking the button below.

This heart prints in two pieces that snap fit together. The back piece has two standoffs sticking out of it that the Circuit Playground Express can be screwed into. Note: the board must be tilted to get it to fit into the heart, so raising it up on some nylon screw standoffs is very helpful.

This design for this project is based on the hollow anatomical heart model created by Brian Locicero.

Print Settings

Each of these quadrants requires some support. This project prints well with the following settings:

• 0.2mm Layer Height / 0.4mm nozzle
• 80mm/s printing speed
• 20% infill
• Supports: Yes

Because of the limitations of 3d printing, your piece may not fit together perfectly right off the printer.

If the fit is too tight, use a small piece of sandpaper to smooth the edges of the parts, allowing them to fit together snugly.