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Project19 June 2023

A rubbish solution: my 3D-printed compost bin bag holder

A simple but effective 3D-printed compost bin bag holder that mounts inside a kitchen cupboard door, using zero extra space.

Design process

1. Quick model in Fusion 360, measuring the bag and the maximum size and depth for the sink to ensure a perfect fit.

2. Exported to Cura, tweaked settings for layer height, infill, and print speed.

3. After several hours, the custom compost bin holder was complete.

4. Mounted on the door of the undersink unit — mark holes, drill, and screw in place.


The compost bin holder now occupies a discreet and accessible spot, making it easy to swap bags without losing a single millimetre of cupboard space — it simply uses dead space.


A perfect example of the power of 3D printing and the endless possibilities it provides.

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