zondag 18 mei 2014

zondag 11 mei 2014

Prototype 48

EXPLANATION //

Evolution of prototype 47
Based on the testing in prototype 47, we adapted our design:

  • use of double-slip collar
  • leash is braided directly on the collar: lighter connection
  • rope that holds the golfabll is sewed on the collar: stronger that knot


VISUALIZATION //

all parts needed to make this prototype:



EVALUATION //



Prototype 47

EXPLANATION //

Testing of prototype 46

VISUALIZATION //


the dog tries to put the collar on, but sometimes he tries to escape again

this leash is directly fixed to a buckle. 
It is especially made for hachiko.
We use this braiding technique as an inspiration for the fixation of our leash to our collar 
in our next prototype.


EVALUATION //




conclusions: 
as an extra remark, we want to add that the connection between the collar and the leash, has to be as light as possible, because otherwise, the weigth prevents that the collar falls open well. So the result is that the dog can't put his head through the collar. 

We will use the double-slip collar and braid a leash directly on it.



zaterdag 10 mei 2014

Prototype 46

EXPLANATION //

Adapting prototype 45.


  • We bought a choke collar, because of the instructable: it is a standard piece.
  • We tried to position the rope with the ball a little bit further from the ring, so that the rope wouldn't twist around the collar.
  • We tried different material to make this little rope more stif: a thick elastic, a thick rope, foam around a rope, a straw around the rope, and an electricity cable. The straw around the rope was the best solution, but it wasn't durable. So be bought a small transparant PVC tube that fulfills the same function.


VISUALIZATION //


For the fixation to the wheelchair, we use the bar under the armseat.

We prototype a metal bar with two 90° angles in it (so that the box doensn't stick out of the wheelchair)
 The PVC box is attached to it with help of 2 bolts.


All materials needed for this prototype


EVALUATION //