Hook for shelves
Working with a 3D printer always gets you some waste plastic and plastic of failed prints. The general idea is to sometime build a filastruder. Foir thoise of you unknowing what that word means: it is an apparatus that reclycles wast plastic into new filament. That is why I save the waste plastic. A plastic bag is dangling from one of my shelves on my desk and in that the plastic is saved. After months of clumsy falling of that bag I wondered why on earth I build my 3d printer if I did not use it practically.
First I designed the hook in Tinkercad
Here is the design on my printerbed.
Right the first time !!!!
Below you will find the STL file which can be adapted for your own purposes.