Kliko-cracker

Edit may 20 2023: added a 120 liter version and a V2 for the 240 liter that fits a little less snug so you can remove it easier.

Just like many others I frequently have a small zoo in my recycle bin with organic waste. One of the reasons is moisture in the waste and a warm environment that is ideal for flies and maggots. 

Then I noticed an article in the newspaper that some local people had 3d printed a small thing that keeps the lid of the bin always open. I created this little design to fit my specific bins but good chance it will fit yours too. It is based on bins that are common in The Netherlands. please comment if it fits on your bin.

It fits very snug and I think it will not fall off when the bin gets collected but time will tell. 

I used 4 parameters and 5 top/bottom layers with 15% infill