According to the website:
Share what you make and how others can make it.
by using photos and short descriptions.
This is a great place to start if you want to try some DIY projects. The projects listed in the site varies a lot - so anyone should find something interesting to try.
The subtitle of the site is "step-by-step collaboration". Technically, it is not collaboration. It is sharing.
cross posted to Asynchronous Collaborative Learning Activities