Blocker second stage — deploy with string?

[Jmh]

Hello,
We are looking to add a second stage to our blocker, and we’ve noticed that many people do this by using tension in string. We’ve attempted to replicate it, however we noticed that whenever we attempted to tie the string to the second stage, it looses tension. Now this works when we deploy it, however the second stage is at a 90 degrees in relation to the blocker , when ideally it would be at around 140 or so. Does anyone know how to securely fasten the string at an optimal angle?

[Gigahertz.t]

How about this?

[Penguin1]

You should put a hard stop instead of relying on the tensioning of the string to put it at 140 degrees. Angle the second stage where you want it to be and figure out a place where you can put something, ideally a standoff or screw, to stop the blocker from going any higher

[Jmh]

We’ve already tried that configuration. It requires an extreme amount of power for that to work. What I’ve found is having it at a double angle helps a lot.

[Jmh]

Thanks! We did try your solution, however the issue with that is that when it retracts to the down position (the blocker folds over itself) the second stage gets caught on the hard stop, causing it to remain up, and not compress all the way.

[HaoChengYang]

If you want to, you can also use two more pistons at the top instead of strings. Our team tried using strings but they didn’t work so we just used two more pistons.

[Jmh]

Thanks everyone for your replies! Ultimately, we just needed to use pliers to really strengthen the string, and a good 4 hours of testing angles for it to be working!