Updated April 4, 2024:
I've added a second print plate of reinforced VPins that are slightly stronger than the revised version. I've added photos with VPins in darker shade of green.
Updated April 1, 2024:
No its not a an April fool's joke, these VPins have been tweaked to make they easier to push into pillars and have better grip as they are slightly sprung now. These are now version 10. Again tahnks to the Masked Marble for his valuable feedback.
Updated March 30, 2024:
Well, the last revision was complete bust. The VPins were too loose. These ones have a much tighter fit and different grip. Also they are a few mm bigger to provide greater stability.
Update March 28, 2024:
These are the latest version of VPins. In this version, I've added a small ridge on the back of the pin to make them easier to push in and pull out.
Again, there are 3 different types: