I recently got some new biodegradable compost bags, which are great, except I needed to find a convenient and space-saving way to store them in the kitchen. With limited space on the shelves under my sink, I needed a clever solution to keep the bags handy without compromising on cupboard space, I wanted to use some of that dead space!
After brainstorming various ideas, I decided to design a custom compost bin holder that could be easily mounted on the door of my under-sink unit. With this in mind, I turned to Fusion 360 to bring this idea to life.
Design process
- I threw together a quick model in Fusion 360 taking the measurements of the bag and being careful to measure the maximum size and depth for the sink to ensure a perfect fit.
- I exported the model to Cura, tweaked the settings to optimize layer height, infill percentage, and print speed – since upgrading my CR10 Max with a Hemera extruder and a volcano hotend, I can really get it going. I’m up to 170% of stock speed (plus a 0.6mm nozzle!)
- After several hours, my custom compost bin holder was complete.
- Mounting the holder was a breeze. I positioned it on the door of the undersink unit, marking the screw holes with a pencil. After drilling the necessary holes, I secured the holder with screws, ensuring a snug and stable fit.
I know it’s super simple, but the compost bin holder now occupies a discreet and accessible spot in my kitchen, making it easy to swap bags and I haven’t lost a single millimetre of space that I previously had in the cupboard – it’s simply using dead space.
It’s a perfect example of the power of 3D printing and the endless possibilities it provides. I want it!
Download my STLs – I’ve uploaded to Printables if you want to pinch my design. I’m happy to tweak for anyone needing smaller/larger dimensions – just let me know your size and I’ll sort! 
