ORIGINAL: zjurgen
Ive had two of the heads on those screws strip... Sucks, pain in the ass to tighten correctly now, need to get some better screws for it.
Very nice though that they sent you an extra chaos!! That must be awesome, so many free parts to work off of!
And yah, with the engine moving backwards it happens to me too, the engine moves to the point where the gears dont connect.
Well if the extra Chaos works, so I got two working Chaos's but with no engine mounts

. I might just have to make parts for myself. I have SolidWorks so I could design the part on that and find someone with a CNC machine or WaterJet or somthing to make it.