packer-backer91 wrote: Gooblah wrote:
Alright, so I managed to finish building the mousetrap vehicle, but with one significant problem: it doesn't go backward.
Which is odd. The winding is correct (clockwise -> once around pin -> counter clockwise), but when I release the lever arm it simply stops halfway. When I push the lever arm forward to simulate how the vehicle would move, it goes forward a bit more then starts moving backward, indicating the problem is perhaps in the mousetrap itself? Has anyone run into a similar issue?
Does the string have tension on it for the entire run? [if there is nothing pulling on the axel that can be the cause of why your vehicle will not reverse]. I don’t exactly use your design but the principal that you use works on my vehicle well. Is the string being hocked on something? Or is our mouse trap being using all of it’s energy and your vehicle only goes halfway back? Not exactly sure what your problem may be. I’m just gave you a list of problems that I have seen happen.
It should, the string is still taut when the lever arm is being pulled.
The axle was two lego rods connected with one of those blue pieces with a hole through it? I think the string keeps getting snagged on the blue piece, since when I push the lever arm, it goes forward then backward as it should....I'm planning on switching the axle, ultimately.
Events: Remote Sensing, Chem. Lab, It's About Time, Dynamic Planet, Mission Possible, Env. Chem. The latter two I found out I had to do 4 weeks before Regionals. Fun, fun, fun.