Search found 26 matches

by phillies413
February 26th, 2011, 5:05 am
Forum: Towers B/C
Topic: Efficiencies
Replies: 270
Views: 50211

Re: Efficiencies

Has anyone in Division C gotten a score above 30 yet?
by phillies413
February 16th, 2011, 3:13 pm
Forum: Towers B/C
Topic: Bracing
Replies: 41
Views: 33187

Re: Bracing

For the bracing in towers in general, it it optimal to use butt (end) joints, or lap joints?
by phillies413
February 14th, 2011, 5:13 pm
Forum: Towers B/C
Topic: Efficiencies
Replies: 270
Views: 50211

Re: Efficiencies

How wide are you guys making the top part of your tower...I try to make mine about 4.8 cm, but is there any benefit to making the top that wide, or is a smaller width at the top, like 4 cm, a better idea?
by phillies413
February 7th, 2011, 4:50 pm
Forum: 2011 Lab Events
Topic: Experimental Design B/C
Replies: 219
Views: 37994

Re: Experimental Design B/C

has anyone been to any competitions yet this year? what kind of experiments have been given out?
by phillies413
January 16th, 2011, 8:33 am
Forum: 2011 Build Events
Topic: Sounds of Music C
Replies: 466
Views: 64348

Re: Sounds of Music C

Oh, sorry, I meant make the sound of the bars lower, not shorter.
by phillies413
January 15th, 2011, 1:20 pm
Forum: 2011 Build Events
Topic: Sounds of Music C
Replies: 466
Views: 64348

Re: Sounds of Music C

1 x 3 might be a little too wide...my xylophone's made out of 1 x 2 pine and it's about 4 feet from the low end to the high end. Also, using pine involves making very long bars, so long in fact, that I have to make collapsible legs and tilt the xylophone sideways to fit it through a doorway. Can't ...
by phillies413
January 15th, 2011, 7:29 am
Forum: 2011 Build Events
Topic: Sounds of Music C
Replies: 466
Views: 64348

Re: Sounds of Music C

Would this wood be good for making a xylophone? Have any of you tried a kind of pine for it?

http://www.homedepot.com/Lumber-Composi ... ogId=10053

Thanks.
by phillies413
December 30th, 2010, 6:52 am
Forum: 2011 Build Events
Topic: Sounds of Music C
Replies: 466
Views: 64348

Re: Sounds of Music C

how are you guys tuning your instruments? I was thinking about this the other day. I haven't tried it but you should be able to tune your instrument using your computer, a microphone and a program like Audacity ( Free Download ). The waveforms are likely to be complex, so be sure you're looking at ...
by phillies413
December 27th, 2010, 6:24 am
Forum: 2011 Build Events
Topic: Sounds of Music C
Replies: 466
Views: 64348

Re: Sounds of Music C

how are you guys tuning your instruments? Do you have an electric tuner that shows the note or frequency of the note just played, or do you have some other device?
by phillies413
December 17th, 2010, 4:48 pm
Forum: Towers B/C
Topic: Designs
Replies: 276
Views: 73336

Re: Designs

A theoretical question: let's say that a tower is built that holds the 15 kg load. If that tower is separated into two sections, the base part and the top part, should both of those parts be able to hold the 15 kg (as in the base and the top both separately hold 15 kg) , or should the load they hold...

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