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by sciencecat42
March 11th, 2019, 6:32 pm
Forum: Boomilever B/C
Topic: PICTURES, SCORES, VIDEOS!!
Replies: 107
Views: 12557

Re: PICTURES, SCORES, VIDEOS!!

1. Well if varies but best boom designs to use are compression boxes. Thanks, that is nice to know. I've been building a few compression box designs but none have reached 1000 yet. Guess I'll keep building them. If any design is going to consistently break 2000+ it will be the compression box. I sp...
by sciencecat42
March 11th, 2019, 6:30 pm
Forum: Mousetrap Vehicle C
Topic: How do you attach a plastic caliper to the vehicle?
Replies: 16
Views: 405

Re: How do you attach a plastic caliper to the vehicle?

But because of the way my vehicle was designed, both bearings need to move in order for the axis to move. If one bearing can't move, the other bearing on the axle can't move either. Don't mean to be harsh, but there's a flaw with your vehicle design then. :p You should be able to fix one bearing so...
by sciencecat42
March 11th, 2019, 6:27 pm
Forum: Boomilever B/C
Topic: PICTURES, SCORES, VIDEOS!!
Replies: 107
Views: 12557

Re: PICTURES, SCORES, VIDEOS!!

TheChiScientist wrote:1. Well if varies but best boom designs to use are compression boxes.


Thanks, that is nice to know. I've been building a few compression box designs but none have reached 1000 yet. Guess I'll keep building them.
by sciencecat42
March 11th, 2019, 6:18 pm
Forum: Mousetrap Vehicle C
Topic: Aiming
Replies: 12
Views: 576

Re: Aiming

I'm not the best at geometry, so for a fixed curve, what angle do you usually point to the right? Is it the same every time or does it change depending on the location of the VTP?
by sciencecat42
March 11th, 2019, 6:15 pm
Forum: Mousetrap Vehicle C
Topic: How do you attach a plastic caliper to the vehicle?
Replies: 16
Views: 405

Re: How do you attach a plastic caliper to the vehicle?

How do you mount it in a way that produces an angle? When I tried to mount the caliper, the whole entire axle moves straight back and forth perpendicular to the main body. You have two bearings holding your axle. One needs to be fixed to the main body, the other needs to be adjustable. The axle sho...
by sciencecat42
March 11th, 2019, 6:11 pm
Forum: Boomilever B/C
Topic: PICTURES, SCORES, VIDEOS!!
Replies: 107
Views: 12557

Re: PICTURES, SCORES, VIDEOS!!

Has anyone seen any trends between top scoring designs? Like are they the basic single two compression members with some lateral bracing, or are they compression boxes, tubes, bowed, etc.? Additionally, does vertical bracing (connecting compression to tension) do anything?
by sciencecat42
February 18th, 2019, 12:20 pm
Forum: Boomilever B/C
Topic: Rule 5.b.ii
Replies: 3
Views: 295

Re: Rule 5.b.ii

What does "nominal eye outside diameter" mean? Specifically the word "nominal." Not sure what it indicates in this context. Does it mean the eye bolt strictly has to have an OD of 1", or that it should be around 1"? In context, I'd say "nominal" means roughly...
by sciencecat42
February 17th, 2019, 9:32 pm
Forum: Boomilever B/C
Topic: Rule 5.b.ii
Replies: 3
Views: 295

Rule 5.b.ii

What does "nominal eye outside diameter" mean? Specifically the word "nominal." Not sure what it indicates in this context. Does it mean the eye bolt strictly has to have an OD of 1", or that it should be around 1"?
by sciencecat42
February 3rd, 2019, 10:06 pm
Forum: Boomilever B/C
Topic: Boomilever B/C
Replies: 345
Views: 25372

Re: Boomilever B/C

Hello, I am doing Boomilever this year and I keep on seeing this wood used for the tension members. The wood looks almost like it is flimsy. Can anyone point me in the direction towards how to get my hands on this mysterious wood? Thanks in advance. Bass wood? Bass wood being flimsy doesn't sound r...
by sciencecat42
February 3rd, 2019, 10:03 pm
Forum: Mousetrap Vehicle C
Topic: Score Discussion
Replies: 67
Views: 4171

Re: Score Discussion

jajefan wrote:
4Head wrote:
dragonfruit35 wrote:Any predictions for Cornell (what it would take to be top 10/medal)? As far as I know, they’re running state rules.

Winner will without a doubt be sub 20


Can confirm - first place at Solon was sub 15, 4th was 21


State rules?
by sciencecat42
February 2nd, 2019, 9:48 pm
Forum: Mousetrap Vehicle C
Topic: Mousetrap Vehicle C
Replies: 314
Views: 25928

Re: Mousetrap Vehicle C

Well, the pitch needs to match perfectly, and even if the pitch matched, a size mismatch would mean more play, and therefore less accuracy. Ok, thanks. In that case, a 6mm-1.0 wing nut would be good if I have a M6-1.0 threaded rod? Yes. M6 is just the metric designation for 6mm when talking about s...
by sciencecat42
February 2nd, 2019, 9:47 pm
Forum: Boomilever B/C
Topic: Boomilever B/C
Replies: 345
Views: 25372

Re: Boomilever B/C

With Gorilla Glue, groove base for the tension stick and laminate. Is there a good guide for how to laminate for boomilevers? I'm new to the event and am not familiar with the process of lamination in this context. Lamination is when you layer pieces of wood on top of each other (often in opposing ...
by sciencecat42
January 30th, 2019, 1:25 pm
Forum: Battery Buggy B
Topic: Caliper Steering
Replies: 35
Views: 3218

Re: Caliper Steering

retired1 wrote:You might want to consider using a 4-40 bolt and nut for your adjustment as you can get more precision that with a 32 or 24 thread bolt or all thread.


I get how the caliper steering works, but how does the bolt/nut work?
by sciencecat42
January 23rd, 2019, 8:38 pm
Forum: Mousetrap Vehicle C
Topic: Mousetrap Vehicle C
Replies: 314
Views: 25928

Re: Mousetrap Vehicle C

Anyone finding an issue with their wing nut not winding that far on the brake axle? Is this even an issue? What do you mean by that? Is it just not traveling very far? If so, you might want to find one with a lower thread count per inch so that the wingnut travels further over the same vehicle trav...
by sciencecat42
January 23rd, 2019, 5:46 pm
Forum: Mousetrap Vehicle C
Topic: Mousetrap Vehicle C
Replies: 314
Views: 25928

Re: Mousetrap Vehicle C

Anyone finding an issue with their wing nut not winding that far on the brake axle? Is this even an issue?

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