I have a nice Velbon VGB-36 tripod for a long time already. It's a very well designed and affordable tripod for most uses if you are a casual or first days professional on photography or video. It has many adjustments and ways to put your camera and stands very well on many surfaces.
However it's not perfect nor standing well when it receive hits at some parts like adjusting grips at its legs. So that's what happen to one. It resulted broken and then it was not possible for that leg to stands fine when shooting.
I contacted with Velbon and some resellers but all say this tripod is too old and they don't have spare parts, oh!
I also searched in Internet for another case similar to my case, and so far I found this good solution: "reparing plastic parts". It looks a very good way to solve it, but it implies some more spare parts and melting the plastic with the cable at high current rates. It also implies more time and modifications. I wanted to try other fixing ways before and check if they work...
So I started to think different on ways to solve this issue, and I had these ones:
As you can imagine all of them look perfect but they requires loads of time, money or both of them. So I thought another way to solve it. Soon I realized that it's possible to fix it with cable zip plastic ties. And it worked!
First I had to put two zips around the pressing parts of the grip axis, in order to keep them at their position I had to use some of sticky tape.