Search found 135 matches

by jgrischow1
March 11th, 2020, 11:25 am
Forum: General Competition
Topic: 2020-2021 Events
Replies: 151
Views: 21009

Re: 2020-2021 Events

If/when nats are cancelled, what about keeping the same events/rules next year and delaying all rotations?
by jgrischow1
March 3rd, 2020, 2:27 pm
Forum: Ping Pong Parachute B/C
Topic: Ping Pong Parachute B/C
Replies: 355
Views: 35319

Re: Ping Pong Parachute B/C

Is aluminized mylar a prohibited metal?
by jgrischow1
March 1st, 2020, 7:31 pm
Forum: Mission Possible B
Topic: Spreadsheet problem
Replies: 2
Views: 494

Re: Spreadsheet problem

When I was running a build event last year at a tourney, I had a spreadsheet problem and emailed scoresheets@soinc.org and Dr. Peter Hung responded right away. Might want to try that.
by jgrischow1
February 20th, 2020, 8:31 am
Forum: Boomilever B/C
Topic: Re: PICTURES, SCORES, VIDEOS!!
Replies: 77
Views: 7069

Re: PICTURES, SCORES, VIDEOS!!

Tension members should never require X bracing... only compression members. X braces as used to resist buckling created from excess compressive forces. In fact, we actually brace off of our tension members to help resist the buckling forces on the compression beams. Awhile ago, maybe back in the 13...
by jgrischow1
February 19th, 2020, 5:55 pm
Forum: Boomilever B/C
Topic: Re: PICTURES, SCORES, VIDEOS!!
Replies: 77
Views: 7069

Re: PICTURES, SCORES, VIDEOS!!

what is your guys´ opinion on a x-bracing on the top? I put a singular x-bracing on top of the tension members, and its like long and extends from the start to the end of the tension members. Tension members should never require X bracing... only compression members. X braces as used to resist buck...
by jgrischow1
February 10th, 2020, 2:16 pm
Forum: Mousetrap Vehicle B
Topic: Scores
Replies: 7
Views: 978

Re: Scores

So rumor has it the winning score at Centerville was under 6. 2nd was over 10. Not sure of the exact target distance. Can someone explain this to me?
by jgrischow1
January 22nd, 2020, 1:58 pm
Forum: Boomilever B/C
Topic: Boomilever B/C
Replies: 357
Views: 38494

Re: Boomilever B/C

I'm sure this has been asked before but I can't readily find it. What's the best use of a tested boom that held the whole load? My kids are a little unsure of some of the dimensions so we are thinking about just taking it apart and weighing/reweighing sfpding/re-sfpding each piece and using that inf...
by jgrischow1
January 18th, 2020, 2:39 pm
Forum: Regionals & States
Topic: Ohio 2020
Replies: 91
Views: 13220

Re: Ohio 2020

2020 Northmont Invitational Results - 1/18/20

Division B

1. Shady Side Academy - 142
2. Magsig Black - 156
3. Mason 2 - 172
4. Watts Gold - 180
5. Watts Black - 204
6. Mason 1 - 216
7. Raymond Park Thunder - 223
8. Tower Heights - 228
by jgrischow1
January 12th, 2020, 12:41 pm
Forum: Regionals & States
Topic: Ohio 2020
Replies: 91
Views: 13220

Re: Thomas Worthington score sheets?

2020 Thomas Worthington Invitational Results - 1/11/20 1. Solon A - 68 2. Centerville A - 72 3. Solon B - 95 4. Centerville B - 103 5. New Albany A - 119 6. Olentangy Liberty A - 254 Impressive scores from both Solon and Centerville. Is there a tournament next week? Westlake and Kenston both have t...
by jgrischow1
December 10th, 2019, 2:49 pm
Forum: Mousetrap Vehicle B
Topic: Wheels
Replies: 7
Views: 1036

Re: Wheels

If we have the Banebots T-40 wheels and a 3/16 in axle, what are our options? Banebots only sells metric hubs for those wheels at 2, 3, 4, and 6 mm, and 3/16 in is about 4.7 mm. T40s are great wheels but definately on the heavy side. If its helpful, you can buy metric threaded rod to mesh. Or drill...

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