I noticed that you could slide the mobile goals on the plastic poles in In the Zone. Are there any OTHER plastic parts for vex (NOT plexi-glass) that the goal could slide on.
One of the core purposes of the VEX Robotics Competition is to provide a platform for participants to practice problem solving skills. We encourage you to post your question to the public forum to create discussion surrounding the topic, but the Q&A will always refrain from answering robot design questions.