Mousetrap Vehicle C

[DarthBuilder]

Mine WAS 230 grams. But I’m trying to make it lighter. Also Rafael check ur inbox.

[Wsbkgjs]

My mousetrap vehicle works on its own but when I test it with the cup it does not work... any ideas?

[Fridaychimp]

My mousetrap vehicle works on its own but when I test it with the cup it does not work... any ideas?

That probably means you don't have enough power at the start of your run. I would try winding your drive axle back slightly past where the mousetrap keeps it to increase tension.

[Alex-RCHS]

My mousetrap vehicle works on its own but when I test it with the cup it does not work... any ideas?

That probably means you don't have enough power at the start of your run. I would try winding your drive axle back slightly past where the mousetrap keeps it to increase tension.

I agree. Decreasing the weight will help, as will lubricating your wingnut axle.

[nnaya]

Hi, How do you guys secure your axles to bearings if you're using them?
The threaded axle we use has a slight gap between the bearing's inner surface and the axle, so our wheels tend to slide L-R or R-L when testing.
That leads to some inaccuracy.
Thanks in advance.

[Alex-RCHS]

Hi, How do you guys secure your axles to bearings if you're using them?
The threaded axle we use has a slight gap between the bearing's inner surface and the axle, so our wheels tend to slide L-R or R-L when testing.
That leads to some inaccuracy.
Thanks in advance.

One option is to put a layer of tape around the rod at the place where you put the bearing to close the gap, although that still has the potential to slide a little.

Theeadlocker is a potential option (it’s like metal-metal glue) but I’ve never tried it personally so don’t take my word for it.

[retired1]

Thread blocker such as locktite red is a nearly permanent attachment. Locktite blue can be separated carefully with a good bit of pressure. Too much and you ruin the bearing.

[biz11]

For those of you using banebot wheels, how are you attaching them to a threaded axle? Right now I'm using nuts + washers but that weighs 20 grams per wheel, so need a better solution.

Also, why are people recommending titanium threaded axles? Aluminum seems like it would be lighter (I haven't used either, so I don't know about them)

[PM2017]

Hi, How do you guys secure your axles to bearings if you're using them?
The threaded axle we use has a slight gap between the bearing's inner surface and the axle, so our wheels tend to slide L-R or R-L when testing.
That leads to some inaccuracy.
Thanks in advance.

I haven't had this problem, but you could try adding some tape on the parts where it is on the earing, so as to increase the thickness of the axle. Be careful not to use a duct tape or something, because the residue is very annoying to clean if you ever need to replace it.

[404ic]

Hi guys! Quick question (okay, maybe not so quick): how does your starting mechanism work? My mousetrap vehicle uses one mousetrap, and I use an axle hook to switch directions while winding. Since the length traveled is not known until competition, I simply turn the axle string a certain amount of times, and then hold the pole in place and release to start. However, the rules say that I need to use a pencil tip. How is everyone else dealing with this issue? Is my mousetrap vehicle design fundamentally flawed?