[Al Skierkiewicz]

Running wire through the tubing is great way to protect the wires and manage the neatness of the robot if you remember a few small items.
1. Make sure the mechanical guys know that you have wires running through the tubing so that they DO NOT drill, tap, weld, or crush the tubing.
2. Make sure that sharp edges (i.e. drilled holes, saw edges, joined parts) are filed clean and deburred before you pull the wires through. Once you pull you will never be able to inspect them again.
3. Don't over stuff wires into a tube, their current capacity rating goes way down when you do that.
4. Never pull wires that have a junction, connector, wire splice or soldered joint inside the tube. It is not done in practice and should not be done on the robot. Joints come apart when you least expect and you can't reach into the tube to reconnect.
Good Luck All