Search found 12 matches

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by Tendan
September 8th, 2019, 6:16 pm
Forum: Gravity Vehicle C
Topic: Gravity Vehicle C
Replies: 54
Views: 2001

Re: Gravity Vehicle C

Do you think there is any best size for the car to be? Old pictures seem to indicate a wide variety of dimensions. Some covered the whole ramp and others were probably not even 25 cm long.
by Tendan
April 15th, 2019, 3:24 pm
Forum: Battery Buggy B
Topic: Score Discussion
Replies: 14
Views: 2110

Re: Score Discussion

My car is getting 4-5 second times and around 8 or less cm off target. My gap is 13 inches, which is a bonus of 33cm. Thanks, is there any way to go to nationals if your school is not going? I do not think so, but I was just wondering. I also think that I did the math right to get a score of -17. I...
by Tendan
March 25th, 2019, 7:38 pm
Forum: Battery Buggy B
Topic: States
Replies: 32
Views: 2244

Re: States

I totally had a 0 cm gap, 0 sec run time and was 0 cm away from the target ;)
Why not go for the universe breaking -1 cm gap?
by Tendan
March 25th, 2019, 3:36 pm
Forum: Battery Buggy B
Topic: Adjusting steering
Replies: 18
Views: 2053

Re: Adjusting steering

I have no idea what a bane bot is. Banebots is a company that sells things like wheels and motors. Their wheels are a popular choice for events like this. They look like a black disk with blue, orange, or green rubber around the edge. It's not that it's easier, we just didn't have any luck getting ...
by Tendan
March 20th, 2019, 7:31 pm
Forum: 2019 Regionals & States
Topic: Pennsylvania 2019
Replies: 748
Views: 69334

Re: Pennsylvania 2019

Paypog pressured me to do predictions, so here we go: 1) Springhouse (95) Although still predicted to win, their parents their team members seem not as solid as before, bombing usually 1-3 events at most invies. 2) SSA (105) They've done pretty good at most invies, *cough* West Liberty Salem. If th...
by Tendan
March 18th, 2019, 6:02 pm
Forum: Battery Buggy B
Topic: Vehicle Thickness
Replies: 54
Views: 4481

Re: Vehicle Thickness

We have our lead screw running from the back of the vehicle to the front. The motor drives the screw at the rear, and a pair of bevel gears join the lead screw to the front axle to drive the front wheels. https://www.servocity.com/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95...
by Tendan
March 16th, 2019, 9:18 am
Forum: Battery Buggy B
Topic: Vehicle Thickness
Replies: 54
Views: 4481

Re: Vehicle Thickness

For those of you with 10-20 cm thick vehicles, isn't that too thin to implement a wingnut brake that can rewind to 12 meters? We have our lead screw running from the back of the vehicle to the front. The motor drives the screw at the rear, and a pair of bevel gears join the lead screw to the front ...
by Tendan
March 14th, 2019, 2:10 pm
Forum: Battery Buggy B
Topic: Counting Rotations
Replies: 34
Views: 1980

Re: Counting Rotations

Has anyone calculated the distance that the vehicle would travel for each of the possible target distances? Or do you just roll the vehicle over the arc during testing and count the rotations then? There are various modeling programs that you can use to draw a diagram of the track, with an arc repr...
by Tendan
March 12th, 2019, 2:17 pm
Forum: Battery Buggy B
Topic: Digital Measurement Tools?
Replies: 12
Views: 756

Re: Digital Measurement Tools?

Rule 3. f. states "Electric/electronic tools of any sort, except a stand-alone calculator, are prohibited." Therefore, the only electronic device that you may have, excluding the buggy, is a stand-alone calculator of any type.
by Tendan
March 12th, 2019, 2:07 pm
Forum: Battery Buggy B
Topic: Slow down mechanism.
Replies: 1
Views: 332

Re: Slow down mechanism.

1. If your configuration allows, you could put a spring on the end of the lead nut's guide rod. You would just have to make sure that the spring isn't strong enough to push the nut backward (99.99% sure that this won't ever happen). 2. You could set up the switch that stops the motor to trigger a bi...
by Tendan
March 9th, 2019, 8:07 pm
Forum: Battery Buggy B
Topic: Counting Rotations
Replies: 34
Views: 1980

Re: Counting Rotations

Because of the motor's internal electromagnets (I think that's what they are referred to), it makes turning the wheel much harder - in fact, this was very important in my buggy's braking last year (regenerative braking?). While turning the wheels manually is possible, it would: 1. Be a pain, and my...
by Tendan
February 4th, 2019, 5:38 pm
Forum: Battery Buggy B
Topic: Different Breaking System
Replies: 7
Views: 1024

Re: Different Breaking System

You can wire the buggy so that a wire runs from the normally open side of the limit/micro switch to the negative wire coming from the motor. This causes the motor to resist rotation after the switch is flipped. This helps a considerable amount in braking if the motor free-wheels after the buggy brak...

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