# CONNECTION (1)

First thing we explored, was the connection from the connection to the frame, we came up with 3 main solutions:

1. Clamp the rotating cilinder between two metal slats, which are integrated in the composite frame for extra stability.
2. Weld plates on the rotating cilinder and attach it on the composite fram with some clinches.
3. Instead of using the plates, we split the rotating cilinder to clamp into a triangle structure, which is a stronger solution.

Next step we thought how to lock the cilinder during cycling/storing:

1. First idea was to weld a plate on top and fix this to the frame using a pin.
2. Also weld a plate, but sideways, to attach to the frame (this will be less strong due to the bending direction of the plate and the attaching plate also juts out when folded)
3. This is the simplest idea; fix the position of the cilinder inside using a pen. When folded, you can put the pen back in to keep the fork in place (hole is the same, when cilinder is rotated 180°). To assure the pin from falling out of the cilinder, we can use a magnet inserted in the front of the frame.
4. This idea was to lock the bike by folding it, so it becomes useless to ride for people who want to steel it.
The pens in the front module keep the cilinders in place. By unlocking the bike, the pens can be pulled out and the fork be folded over 180° to the folded position. This idea is quite difficult to realise; also if user loses the key, the bike is useless to drive and has to be repaired...)