Red-Rx7
Senior Heliman
Location: Olathe, KS - USA
| Hello...
I am building my Vario Benzin Trainer, and cannot help but to think that something is weird here. The manual says nothing about cutting the linkage rods, yet it is impossible for the position that the manual says to place the servos and ball crank arms to reside with the pieces that I have.
I am trying to do the 3 Servo 120o setup, but at this point where the servos attach nothing is different than the 4 servo 90o setup.
Look at the following picture:
First: Ignore the placement of the ball end on the ball crank arm (seen in far left of the picture - the ball faces you the viewer - it needs to be on the other side). I need to put it on the inside pointing to the frame. Yet, for length reference, it is there to show the length of the rod.
Second: Notice the two rods on the outside (closes and furthest from viewing the picture). The ball ends are screwed on as far as they will go (more on this below); but are not in the Vario window. Even if they were, it would not make a difference as the distance between the two are too far apart.
Third: The middle rod is almost at the correct length, for if the rod would go through the ball link ends into the window area, it seems like it would be a perfect length. But it doesn't....
Now, why are the rods not into the window of the ball link ends?
See this picture:
Unless I have defective ball link ends, that little tiny hole you see in the plastic measures out to be less than 1/3rd of a millimeter. Yet, the diameter of the rod itself is 2.5mm.
If I just try to continue to screw that rod in, it will strip the inside of the threading for the ball link end. I cannot really access it either to drill, as I would need a 2mm drill and have to be pretty exact not to muff up any of the internal threading for the ball-link end. This is how all eight of these ends are.
So what am I doing wrong, or what has Vario ommited in their instructions or quality of parts? As for a solution, I have to cut the rod down?
For reference on my ball crank arms, here is a side profile picture. Notice that it is at a perfect 90o angle:
Thanks,
Mike |
