Length of AL5B arms

Lynxmotion Robot Arms
1

hello
I need length of each joint of AL5B
i just know the Base Height is 6.9 cm
what is length from joint 1 to joint 2
and joint 2 to joint 3
and joint 3 to joint 4

thank for your help

2

This should help:
lynxmotion.com/images/jpg/al5bbd.jpg