Boomilever B/C
- xiangyu
- Member
- Posts: 276
- Joined: April 6th, 2019, 8:32 pm
- Division: Grad
- State: MI
- Pronouns: He/Him/His
- Has thanked: 7 times
- Been thanked: 6 times
Re: Boomilever B/C
Lol, this may seem like a weird question, but does anyone else bake your boomilever the night before competition? I've been doing this to get moisture out of wood and decrease weight but I wonder if it affects boom strength.
Medal & Ribbon Count: 33
Former EGRHS Team Captain 2017-2021
https://scioly.org/wiki/index.php/User:Xiangyu
Former EGRHS Team Captain 2017-2021
https://scioly.org/wiki/index.php/User:Xiangyu
-
- Member
- Posts: 5
- Joined: September 19th, 2019, 4:53 am
- Division: C
- State: IN
- Has thanked: 0
- Been thanked: 0
Re: Boomilever B/C
Does your boomilever absorb moisture in the time between baking and competition? In my experience it has so I haven’t been baking, but I think it’s a good idea. It shouldn’t affect the strength much at all if you don’t set the temperature too high. I’m not 100% sure so anyone else please chime in.
-
- Coach
- Posts: 573
- Joined: February 6th, 2006, 2:20 pm
- Division: B
- Has thanked: 0
- Been thanked: 7 times
Re: Boomilever B/C
Not sure about booms, but I bake my turkey at 350 degrees for 20 minutes per pound!...
Seriously, I'd worry more about the damage to the glue more than the brittleness of the wood. In northern colder climates, there is not much ambient moisture in the wintertime. As spring rolls around there may be a need, but even then, I'd recommend maybe taking a blow dryer to the competition, and working it over for maybe 10 minutes or so before weighing it inside a garbage bag. Keep in mind, this is very short lived. It may reduce weight by 1 or 2 tenths for 20 minutes or so, but will return to ambient humidity shortly. Personally, I don't feel it is worth the risk of breaking an X brace trying to get it in and out of the bag. Far better to spend this time going after the bonus in construction..
Seriously, I'd worry more about the damage to the glue more than the brittleness of the wood. In northern colder climates, there is not much ambient moisture in the wintertime. As spring rolls around there may be a need, but even then, I'd recommend maybe taking a blow dryer to the competition, and working it over for maybe 10 minutes or so before weighing it inside a garbage bag. Keep in mind, this is very short lived. It may reduce weight by 1 or 2 tenths for 20 minutes or so, but will return to ambient humidity shortly. Personally, I don't feel it is worth the risk of breaking an X brace trying to get it in and out of the bag. Far better to spend this time going after the bonus in construction..
Dan Holdgreve
Northmont Science Olympiad
Dedicated to the Memory of Len Joeris
"For the betterment of Science"
Northmont Science Olympiad
Dedicated to the Memory of Len Joeris
"For the betterment of Science"
- xiangyu
- Member
- Posts: 276
- Joined: April 6th, 2019, 8:32 pm
- Division: Grad
- State: MI
- Pronouns: He/Him/His
- Has thanked: 7 times
- Been thanked: 6 times
Re: Boomilever B/C
Hmmm, I was thinking about baking it and then immediately sealing it in a box with lots of silicon dry packs. Should it pretty dry until I take it out of the box? In the past, baking it has decrease my weight anywhere from 0.3 g to 0.5 g from my memory (Which could be inaccurate lol)dholdgreve wrote: ↑December 12th, 2019, 6:43 am Not sure about booms, but I bake my turkey at 350 degrees for 20 minutes per pound!...
Seriously, I'd worry more about the damage to the glue more than the brittleness of the wood. In northern colder climates, there is not much ambient moisture in the wintertime. As spring rolls around there may be a need, but even then, I'd recommend maybe taking a blow dryer to the competition, and working it over for maybe 10 minutes or so before weighing it inside a garbage bag. Keep in mind, this is very short lived. It may reduce weight by 1 or 2 tenths for 20 minutes or so, but will return to ambient humidity shortly. Personally, I don't feel it is worth the risk of breaking an X brace trying to get it in and out of the bag. Far better to spend this time going after the bonus in construction..
I generally bake my boom at 170 Farenheit (lowest on my owen setting) for about an hour.
Does my settings damage the glue?
Xiangyu
Medal & Ribbon Count: 33
Former EGRHS Team Captain 2017-2021
https://scioly.org/wiki/index.php/User:Xiangyu
Former EGRHS Team Captain 2017-2021
https://scioly.org/wiki/index.php/User:Xiangyu
-
- Member
- Posts: 62
- Joined: February 18th, 2019, 2:18 pm
- Division: C
- State: FL
- Has thanked: 2 times
- Been thanked: 1 time
Re: Boomilever B/C
Would the added brittleness after baking/blow-drying aid structure in any way, or is the only added bonus for baking/blow-drying the marginal reduction in mass?
I build. A lot.
Boca Raton High School.
Events: Boomi, Gravity Vehicle, Wright Stuff.
Incomplete Userpage
Boca Raton High School.
Events: Boomi, Gravity Vehicle, Wright Stuff.
Incomplete Userpage
-
- Member
- Posts: 33
- Joined: September 17th, 2019, 2:59 pm
- Has thanked: 0
- Been thanked: 3 times
Re: Boomilever B/C
wait last year at nats did most people use the standard boomi design or did they use a tower chimney
- MadCow2357
- Exalted Member
- Posts: 774
- Joined: November 19th, 2017, 9:09 am
- Division: C
- State: RI
- Has thanked: 211 times
- Been thanked: 56 times
- Contact:
Re: Boomilever B/C
I think tower chimney was the most successful.dankdecidueye wrote: ↑December 12th, 2019, 1:55 pm wait last year at nats did most people use the standard boomi design or did they use a tower chimney
-
- Coach
- Posts: 573
- Joined: February 6th, 2006, 2:20 pm
- Division: B
- Has thanked: 0
- Been thanked: 7 times
Re: Boomilever B/C
Again, different strokes for different folks, but I'm a firm believer that the more joints a boom has, the more opportunity there is for failure. Wood, especially balsa wood is anything but homogeneous! There can be quite a range in densities within the same stick. As these sticks become smaller and smaller, these inconsistencies form a greater part of the stick.dankdecidueye wrote: ↑December 12th, 2019, 1:55 pm wait last year at nats did most people use the standard boomi design or did they use a tower chimney
In chimney type designs, there are probably 3 to 4, maybe more, times the amount of joints (i.e. opportunities to fail), plus they take much longer to build.
Charles Mingus once said "making the simple complicated is commonplace: making the complicated simple, awesomely simple, that's creativity!" I tend to agree with Charles, keep it simple!
Dan Holdgreve
Northmont Science Olympiad
Dedicated to the Memory of Len Joeris
"For the betterment of Science"
Northmont Science Olympiad
Dedicated to the Memory of Len Joeris
"For the betterment of Science"
- xiangyu
- Member
- Posts: 276
- Joined: April 6th, 2019, 8:32 pm
- Division: Grad
- State: MI
- Pronouns: He/Him/His
- Has thanked: 7 times
- Been thanked: 6 times
Re: Boomilever B/C
I'm sure this has been answered at some point previously in time, but is there a place where I can buy the testing apparatus seen at most competitions? If no, are there plans or guides for how to build one?
Medal & Ribbon Count: 33
Former EGRHS Team Captain 2017-2021
https://scioly.org/wiki/index.php/User:Xiangyu
Former EGRHS Team Captain 2017-2021
https://scioly.org/wiki/index.php/User:Xiangyu
Who is online
Users browsing this forum: No registered users and 5 guests