Scara Mechanical Unit Manual
Document Version: V1.1(
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28
Fig 0.10 Dimensions for attaching cameras and valves (RX6)
3.2.1.
Equivalent weight
When you attach a camera or valve to the arm, calculate the weight as the equivalent of the shaft. Then
add this to the load. Equivalent weight formula is shown below.
When you attach the equipment near Arm #2:
𝑊
𝑀
= 𝑀(𝐿
1
)
2
/(𝐿
1
+ 𝐿
2
)
2
When you attach the equipment to the end of Arm #2:
𝑊
𝑀
= 𝑀(𝐿
𝑀
)
2
/(𝐿
2
)
2
𝑊
𝑀
：
equivalent weight
𝑀
：
weight of camera etc.
𝐿
1
：
length of Arm #1
𝐿
2
：
length of Arm #2
