I don't know how I did that, but I lost one pin on one of my systainers (T-loc Model).
I only found one website (worldwide) selling the replacement part, so I decided to model it.
Modeled on OnShape, it can probably be tweaked better (there is some minor differences, but… it's good enough for me right now)
Let me know if it works with your systainers !
Print settings :
Orientation : large base on the bed (with textured bed it even matches the texture of the systainer)
Small layers (.16 seems right) because it has a lot of small features
No supports
Brim recommended.
The author marked this model as their own original creation.