I used metal prats at my previous design, some pictures and videos are directly from that.

I used that for reference. It's the same way to install them.

If you want a metal bolts version, please let me know.

This model is a stand for portable monitors with vesa mount.

I used a new design so you can adjust the angle and height easily.

You can change the needing force just by tightening the bolt.

I am not very good at English. If you find something confusing, please leave a comment so I can fix it.