Data will be complete shortly.
In the meantime, for testing, 
you can put in any sensible numbers you like.
<pre>
left end knot
53.5cm
screwdriver 41.2g,
18.5cm
CD 61.2g, 
32.5cm
scissors 67.6g,
19.5cm
calculator 82.1g, 
41.5cm
C-clamp 111.9g.
35.0cm
right end knot
End-points: 
P0=[0,0], 
P6=[148.09,-20.30]cm.