Roboticarm V1 - Construction Info

EDIT
I added more pictures for easier assembling
By the way, its a prototype. Thread in the servos can be a little tricky :)
It can lift up over 300 grams!
/EDIT

Youtube Videos with working Arm:
https://www.youtube.com/watch?v=nnQkck3u9Ow
https://www.youtube.com/watch?v=Jo6CBHO7F1E



If you want to build this roboticarm, here a little help:
Download the wiring diagram and the keyboard curciut layout as picture from here.
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Partlist:
Printed parts (Download the 3D STL Files from here)
7 Pcs TowerPro MG995 Servos
1 Arduino MEGA 2560 Microcontroller
1 PCA9685 Servocontroller
1 Robot Claw
8 Pcs Ballbearing 623 or 623ZZ
1 Power Supply 7.2 Volts 5 Amps
1 Resistor 10k Ohms
19 Pcs micro button switch
Cables in different colors
M3 Screws, Nuts and Bolts in different lenght
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Pinout:
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PCA9685 -> Arduino MEGA
SCL