Prototype 9 & protomorphing

Prototype 9

With this prototype we try to use the best options tested. So, we used the sliding system to attach it to the handlebar and a strap to make it stable. As we had different aspects to test, we decided to make this prototype protomorphable.

This way, we created to different shell shapes, one smaller than the other:

We created three different straps:

Silicone

Silicone

Strap and silicone

And we used the connection to the handlebar that he liked most but we also tried two different lengths, that way he can test his reaction when taking his arm off.

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+	–
Shell shape; smaller, big enough to be comfortable, but still safe feeling	Shell shape; bigger prototype too big
Strap; silicone feels good, also no closing system needed	Shell shape; sharp edges, should be more rounded
Attaching system; easy to connect	Attaching system; small one too small, left side of the slide should be closed

Prototype 8 & protomorphing

Prototype 8

With this prototype we try to connect the prototype to the handlebar by using a slide system. The hand is attached by a cotton strap. The strap is bigger than the previous one to divide the pressure and also to protect the hand from the cold winds.  

Protomorphing:

We put double sided tape on this prototype so we can change the sort of cushion we use to absorb the shocks.

1

2

3

4

Testing:

The strap is hard to put on, but easier than the previous prototype.

It would be easier to use one big slide instead of two. It is easy to click in, but difficult to click out. The clicking noise helps. This gives auditory feedback. A slide to the side would be better than a slide to the front.

+	–
Easier than prototype 7	Strap hard to put on
Easy to click in	Difficult to click out
Clicking noise	Should use 1 slide instead of 2

  

Extra questions:

Do you want support for wrist?: no Do you want to be able to change the size of the strap?: yes