Boomilever B/C

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Cow481
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Re: Boomilever B/C

Postby Cow481 » October 14th, 2018, 5:20 pm

I currently am using a 1/4” dowel rod spanning 5 centimeters. I made a groove in the center for the j hook to grip on and it was about 4.5 g. Is 4.5 grams to much weight or should I for something lighter?
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Re: Boomilever B/C

Postby TheSquaad » October 15th, 2018, 2:44 pm

I currently am using a 1/4” dowel rod spanning 5 centimeters. I made a groove in the center for the j hook to grip on and it was about 4.5 g. Is 4.5 grams to much weight or should I for something lighter?
That has to be an extremely dense rod for it to weigh 4.5 grams at 1/4”. I’d go for a lighter density with a greater diameter to compensate

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Re: Boomilever B/C

Postby dholdgreve » October 16th, 2018, 6:55 am

I currently am using a 1/4” dowel rod spanning 5 centimeters. I made a groove in the center for the j hook to grip on and it was about 4.5 g. Is 4.5 grams to much weight or should I for something lighter?
I think you will need to get the dowel under a gram to be competitive.
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Re: Boomilever B/C

Postby Cow481 » October 16th, 2018, 12:43 pm

I’ll try to do that becuase right now i’m just trying to get a feel for this event since i think this is the second time my school doing it. What shape would you recommend, a quarter dowel, half dowel, something similar to 2013... etc.
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Re: Boomilever B/C

Postby retired1 » October 16th, 2018, 6:26 pm

Remember that the dowel does not have to be the 5 cm apart at the hook. 3/8" to 1.2 " should lighten it considerably. The angle formed is not huge, so it will have a minimal effect on the 2 tension members and what they will hold.

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Re: Boomilever B/C

Postby Cow481 » October 16th, 2018, 6:42 pm

Thanks for the tip, thats going to help lower the weight significantly
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Re: Boomilever B/C

Postby TheChiScientist » October 22nd, 2018, 8:58 am

What type of clamps do you guys buy to apply pressure on the boom during gluing? Also, where can these be bought?
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Re: Boomilever B/C

Postby dholdgreve » October 22nd, 2018, 2:56 pm

What type of clamps do you guys buy to apply pressure on the boom during gluing? Also, where can these be bought?
We don't used "clamps" other than the ones attached to our hands... If you use the purple cyanoacrylate glue, it sets in 30 seconds or less.
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Re: Boomilever B/C

Postby MadCow2357 » October 22nd, 2018, 2:57 pm

What type of clamps do you guys buy to apply pressure on the boom during gluing? Also, where can these be bought?
We don't used "clamps" other than the ones attached to our hands... If you use the purple cyanoacrylate glue, it sets in 30 seconds or less.
I think he means the ones used for holding gorilla glued pieces in place (for example the base). I'm gonna be using my mini Dewalt clips, IDK if they're going to work though.
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Re: Boomilever B/C

Postby TheChiScientist » October 22nd, 2018, 3:21 pm

What type of clamps do you guys buy to apply pressure on the boom during gluing? Also, where can these be bought?
We don't used "clamps" other than the ones attached to our hands... If you use the purple cyanoacrylate glue, it sets in 30 seconds or less.
I think he means the ones used for holding gorilla glued pieces in place (for example the base). I'm gonna be using my mini Dewalt clips, IDK if they're going to work though.
Yup. I am using a special solution adhesive that's sorta like gorilla glue. Insanely strong and light. Problem is that it needs to set over the course of 30 mins. :(
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Re: Boomilever B/C

Postby MadCow2357 » October 22nd, 2018, 5:40 pm

We don't used "clamps" other than the ones attached to our hands... If you use the purple cyanoacrylate glue, it sets in 30 seconds or less.
I think he means the ones used for holding gorilla glued pieces in place (for example the base). I'm gonna be using my mini Dewalt clips, IDK if they're going to work though.
Yup. I am using a special solution adhesive that's sorta like gorilla glue. Insanely strong and light. Problem is that it needs to set over the course of 30 mins. :(
I would definitely try the mini DeWalt clamps, then. Would you mind sharing with me what "special solution" you are using through PM? I understand if you don't want to, it's ok. Everyone wants to keep a few SciOly secrets up their sleeves.
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Re: Boomilever B/C

Postby Cow481 » October 22nd, 2018, 6:08 pm

Is it absolutely necessary to use glue stronger that bsi like gorilla glue for the base or is bsi good enough from a competitive standpoint?
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Re: Boomilever B/C

Postby DarthBuilder » October 22nd, 2018, 6:10 pm

Is it absolutely necessary to use glue stronger that bsi like gorilla glue for the base or is bsi good enough from a competitive standpoint?
So far I’ve been using bsi glue and it works fine. But I’ve ordered some wood so ill tell you how it goes with the gorilla glue.
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Re: Boomilever B/C

Postby M017 » October 23rd, 2018, 9:30 am

how are people going about building a boomilever, as in what order of sides are you putting it together?

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Re: Boomilever B/C

Postby MadCow2357 » October 23rd, 2018, 9:43 am

I'm probably going to be building the two sides separately, then lacing them together in the middle on my old towers jig. Aia recommended doing the compression part first, and then attaching the tension members, but I'm going to take an approach similar to what I did with towers last year since that seemed to work out.
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