Search found 12 matches

by mderoller
February 4th, 2018, 5:59 am
Forum: Battery Buggy B
Topic: Device for driving straight
Replies: 10
Views: 2556

Re: Device for driving straight

I think to get the center line bonus you just want to make your buggy as wide and long as the rules allow. For aiming we are using the front dowel, which has to extend at least 20cm above the floor, and we have exactly centered with the front wheels, and a dowel in the rear, which is also centered w...
by mderoller
February 4th, 2018, 5:49 am
Forum: Battery Buggy B
Topic: Center line bonus
Replies: 11
Views: 2371

Re: Center line bonus

So it's to your advantage to have 30cm wheels in the front or back, or both, which is the maximum width, to ensure the center tape is completely within them.
by mderoller
January 30th, 2018, 5:10 pm
Forum: Battery Buggy B
Topic: Battery Buggy B
Replies: 186
Views: 68071

Re: Battery Buggy B

So you could complete a practice log from 9 to 12 meters, in 50cm increments, with all the necessary data to setup your buggy for a run and bring that to the Event? Give a copy to the supervisor to be impounded?
by mderoller
November 28th, 2017, 9:04 am
Forum: Battery Buggy B
Topic: Are micro controllers allowed?
Replies: 4
Views: 903

Re: Are micro controllers allowed?

shrewdPanther46 wrote:It is not one of the allowed electrical components, meaning a form of mechanical braking must be designed
Division B rules say the braking can be electrical or mechanical. If it's electrical it needs to run off the same battery pack as the propulsion.
by mderoller
February 15th, 2017, 7:10 am
Forum: Mission Possible B
Topic: Where can the TSL template be found?
Replies: 7
Views: 1864

Re: Where can the TSL template be found?

The powerpoint sample on soinc.org, second page says "Use the Transfer Sequence List template posted on the national website." Are we ok to use 2017 TSL powerpoint sample as template? Thanks.
by mderoller
February 13th, 2017, 4:06 pm
Forum: Mission Possible B
Topic: Screw
Replies: 21
Views: 3821

Re: Screw

Thanks for the response. We are using a string tied to a screw with a weight. When the weight drops the screw rotates many times on a nut that is fixed. What we would like to do is have the screw blocking a hole above it. When the screw rotates it moves to one side, unblocking the hole and letting s...
by mderoller
February 6th, 2017, 10:25 am
Forum: Mission Possible B
Topic: Screw
Replies: 21
Views: 3821

Re: Screw

Nevermind, after rereading the rules, specifically 3i I understand "each object that is a simple machine may only be counted as a simple machine once". In my example it can be a scored as a wheel and axle, or screw, but not both.
by mderoller
February 6th, 2017, 10:10 am
Forum: Mission Possible B
Topic: Screw
Replies: 21
Views: 3821

Re: Screw

We would like to connect a wheel and axle to a screw in such a way that both are scorable. One idea is for a weight attached to a string that is wound around the wheel to fall, there bye rotating the axle. Can the rotating axle power the screw directly and still be scorable as a wheel and axle and a...
by mderoller
February 2nd, 2017, 10:41 am
Forum: Mission Possible B
Topic: Mission Possible B
Replies: 17
Views: 5256

Re: Mission Possible B

Is there any rule that says the first use of the Simple machine should be counted towards points? Sample TSL has an L1 to IP transfer at No. 6. But there is no points listed. Instead No.12, L1 to W is used for points. Is it students wish on what they list as scorable transfer or is there any rule t...
by mderoller
January 30th, 2017, 5:03 pm
Forum: Mission Possible B
Topic: Wedge on Lever question
Replies: 3
Views: 1216

Wedge on Lever question

Apologies if this has been asked before. A wedge is the "load" on a class 1 lever, and effort is applied to the other end pushing the wedge upward and separating 2 objects which initiates the next simple machine. How will the judges interpret this? 1. Class 1 lever to Wedge, to next simple machine? ...

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