Initial Testing
Initial testing and problem fixing to ensure system works as expected.
Arm Lifting Problem:
Before starting the tests, we noticed that the horizontal lever arm moves up when the rope is
pulled.
Fix:
In order to fix this problem, we glued the horizontal lever arm to the lever crank body, as there was
no need for the arm to be able to rotate, since it is a solid arm that does not deform with added weight.
Fast Falling Problem:
Our system was falling at free-fall, and therefore we suspected that there is no friction between the
brake pads and the rope.
Fix:
We taped the brake pads together to see if by ensuring there is friction, the system will slow down properly.
It did, and therefore we concluded that the issue we will need to fix is the friction between the rope and the
brake pads.
Floating Problem:
We noticed that during our tests, the object floated from the arm it was hooked to. This was causing the
bottom lever arm to float up, which caused the horizontal arm to move back and the friction between the brake pads to lessen.
Therefore, the system moved down very fast.
Fix:
In order to fix this problem, we implemented a "locking" system that locked the bottom lever arm
in place after the weight was initially applied. This ensured that even if the object floated, the arm will
not be affected.
This slowed down our system as desired.
Tilting Problem:
We noticed that the system tilts due to the disparity in the rope hole location between the top and bottom.
Fix:
Therefore, we centered the hole through which the rope goes inside on the top, which fixed our tilting problem.
Rope Shifting Problem:
We saw that during some tests, the rope pops out from in between the brake pads, causing the whole system to fall
free-fall.
Fix:
We therefore created a path for the rope to properly align to the brake pad.