19sawickin wrote:I have a ton of questions that I just haven't been able to solve for a while now and I'm hoping someone could help:
I don't think anyone ever really gave a clear answer to the issues raised about the wing-nut braking mechanism not functioning as it should. I too have found that when I chop off one of the wings of my wing-nut, the wingnut just dangles on the axle with its sole arm pointing at the ground, regardless of what direction the vehicle is traveling in. What am I doing wrong here? Is it even necessary to cut off one of the arms if I have two rods parallel to and on either side of the axle – one for the way forward and one for reverse where there's the obstruction? I'm tired of regulating reverse braking with string winds, but I just can't seem to figure out the wingnut system.
In regards to wheels and axles, I purchased Banebot T40 2-3/8" wheels and my axle is a #8-32 aluminum axle. I measured with a caliper and its diameter seems to be 4mm, so should I order the 4mm shaft hubs from Banebot for this? 3mm shaft or 6mm shaft hubs certainly won't cut it, but I don't know if 4mm shaft hubs will work either.
Have people been using caliper steering this year? And if so, how have they gone about attaching the caliper to the vehicle?
Lastly, is there any way besides zip ties that people have been attaching their rods to their mousetraps? My rod never stays secure at the end of the mousetraps when it's folded over and it twists at an angle while unwinding the string.
1. I found that you don't have to cut off a wing but there must be enough room for the wing to rotate to the other side of a platform where it will interact with a stopper.
2. 4mm hubs should be fine. Although you may need to either sand the hub bores or tap them with #8-32 threads fro them to properly fit as a size 8 axel is slightly larger than 4mm.
3. Most teams I have seen aren't but I am sure that competitive team are. You can drill a hole in a caliper place a bearing a axel in the caliper (as seen in bazinga's video)
4. I have had success by using wire to tightly wrap the rod on to the mousetrap and then secure the rod using glue.