Hi im Trevor Brooks from a First Robotics team in Dover NH USA http://gwrobotics.net . i have been looking at a lot of great 3D printers and some of them do not have a heated bed to provide better large abs prints. Since i have no physical experience with either ABS or PLA i dont know which material would be best to use on our robots. i know that pla smells good, non toxic, renewable, and doesn’t require a hot heated bed, it is also more brittle and less flexible. ABS is flexible, toxic smelly fumes, non environmentally friendly, and needs a hot heated bed to print well. the thing im struggling with is weather being flexible is a good thing to have on a robot (worrying of warping parts under pressure/lots of weight) but at the same time i know PLA is more rigid and resistant to warping (providing cool temperature) but i don’t really know how tough it is (how much force can we put on it before the part snaps) im just worried that during a competition if we get hit to hard some parts may snap. THANKS IN ADVANCE FOR YOUR HELP!!