any1 know a consistiant way to do it?

what is a chair fling???

Chair fling is similar to the barrel skip, as far as i can tell there isnt any method that is very consistent sadly, besides making sure the top faces away from you and the bottom is closer

where is it used and what does it do exactly

Cubizoid it is used to skip tram and get to tram faster :3 Also I found it to be easier to do if you line yourself up with the bottom of the hole of the chair (if you are talking about the tram fling)

Here the problem came out, during my passage, this chair falls through the wheels under the floor and cannot be pulled out !

oh yeah I figured that out you need to set your fps to 30 that makes it work and not fall through the floor for some reason