Boomilever B/C

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Re: Boomilever B/C

Post by iwonder » February 11th, 2014, 2:37 pm

There was a PDF that used to be posted on the event page of soinc.org, it doesn't seem to be there now, but it not only described the applicator in question, but talked about curing times for CA, and gap lengths and strength of bonds. Very good resource actually, I was surprised it's not up there. If I recall correctly jander14indoor wrote it actually?
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Re: Boomilever B/C

Post by xchampkevin » February 13th, 2014, 10:03 pm

Just built a boomilever that scored 1000 points without breaking. Probably can go up to 1500, but it's our competition boomilever. :D :D
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Re: Boomilever B/C

Post by UQOnyx » February 14th, 2014, 6:23 am

Congrats! Just make sure there are no interanl breakages or splitting of the wood.
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Re: Boomilever B/C

Post by boomileverccs » February 15th, 2014, 11:44 am

What type of glue works best?

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Re: Boomilever B/C

Post by iwonder » February 15th, 2014, 12:00 pm

I use CA for everything, but some people use gorilla glue when you need a lot of strength with a little area (like some distal end connections).
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Re: Boomilever B/C

Post by UQOnyx » February 15th, 2014, 12:58 pm

If you want detailed info about popular choices in glue, check the Boomilever Wiki page.
EDIT: Lol, sorry, wrote boomilevers instead of boomilever
Last edited by UQOnyx on February 17th, 2014, 11:44 am, edited 1 time in total.
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Re: Boomilever B/C

Post by nxtscholar » February 15th, 2014, 5:28 pm

The hyperlink directs me to a page with no text on it. :P Maybe it's just my computer?

Anyways, this is the wiki for the boomilever event, which does have a section on glue in it: http://scioly.org/wiki/index.php/Boomilever

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Re: Boomilever B/C

Post by iwonder » February 15th, 2014, 5:32 pm

It's just a typo. Also, there's a page calls Aia's Boomilvere guide that has a section on glue as well.
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Re: Boomilever B/C

Post by chinesesushi » February 17th, 2014, 4:14 pm

For tube booms, I always see a plug thing in the top of the tube near the loading block. What is the purpose of that, and if it is necessary, how can I make one? Thanks.
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Re: Boomilever B/C

Post by iwonder » February 17th, 2014, 4:41 pm

Typically balsa dowel is used I believe. Specialized sells them. It's used because without it the stress concentration on the tube would be too high, since the tension member would only have two small contact points on top and bottom of the tube. This spreads it out to put the load in the entire tube.
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