So, I'm SURE someone out there can help with my... unique... issue. See, I need to attach a spiderbot to helicopter blades via a chain to make it fly. I've linked them all together, but when I try to make it work, all the links go flying everywhere. Also, trying to look at any of it with the viewpoint dropdown ("face", "top", etc) results in seeing gray everywhere and nothing else. I have to work tonight (and worked on THIS all night last night), so I'm going to bed now, and hope that someone has been able to help me by the time I get home from work tomorrow morning. Thank you all for your continued help. I really appreciate you all!

Here are some screen shots to help explain:


This is what it looks like right now, before I hit "play". The end of the chain and the box on it are both supposed to be 3-D, not flat. The blade, which should be attached at the other end, is under the spiderbot.


This is what it does when I hit "play". The shadow near the back is the box. I have no idea where it goes when it flies off. or why.

Here is the constraint list:

Thank you again!