RoboThespian Standard Head Swap

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Revision as of 14:39, 27 February 2019 by Chris.c (talk | contribs) (Equipment required)
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RoboThespian >> RoboThespian Troubleshooting >> Standard Head Swap

Overview

The RoboThespian comes as standard with a hard shell head or can be swapped with a projector head version; this page will guide you through the process of replacing a standard head. You may want to replace the head if it has been damaged or if you are re-installing the standard head from a projector head.

Equipment required

To safely and easily replace the standard head you will need a few tools:

  • 2.5mm Hex Allen Key
  • 5mm Hex Allen Key
  • Flat head screwdriver (I recommend a small blade, approximately 4mm wide and 0.8mm thick)
  • Side cutters

[Pic here]

Instructions

1. First ensure that the robot is fully powered off and unplug from the mains.

2. Remove the rear torso body shell by removing the 6 bolts using the 2.5mm allen key, two bolts are located on both the left and right shoulder and the other two bolts are located at the bottom of the shell. See this page for more information on removing the body panel

[Pic]

3. On either side of the neck is an M6 cap head bolt securing the neck to the torso, remove these two bolts. It is accessible without taking the front shell off.

[pic]

4. With the rear shell removed you now have access to the head cables, the standard RoboThespian head has a loom containing the USB signal cable and a 2-pin power cable to power the headboard. This loom goes directly into the back of the head. There is also another loom that enters the base of the head and powers the head pitch, roll and yaw motors. The loom also includes signal wires from the encoders for the respective axes.

Unplug the first loom by unplugging the USB cable and the 2-pin power cable.

[pic]

5. With the first loom unplugged you can now lift the head out of its mounting bracket to get better access to the second loom connectors. This can be tricky so I suggest having a colleague hold the head as you remove it. The head is held in place with mounting brackets located in the neck of the robot. The brackets are made of plastic and are designed to snap closed over the mounting points on the head, carefully pull back the tabs and lift the head out of the brackets (I recommend doing one side at a time)