tifuhnee Posted November 22, 2009 Report Share Posted November 22, 2009 the bottom base is 20 cm and the top line is 3.5 cm. the long line going down the center is 35 cm and the sides are about 36.5 cm. this is my blue print so far, but i was wondering how to do the cross bracing so that it has a high efficiency. any help please? Quote Link to comment Share on other sites More sharing options...
Turtle Posted November 22, 2009 Report Share Posted November 22, 2009 the bottom base is 20 cm and the top line is 3.5 cm. the long line going down the center is 35 cm and the sides are about 36.5 cm. this is my blue print so far, but i was wondering how to do the cross bracing so that it has a high efficiency. any help please? how's this? :eek_big: Quote Link to comment Share on other sites More sharing options...
tifuhnee Posted November 22, 2009 Author Report Share Posted November 22, 2009 how is this instead? my teacher said to have around 6 cross braces. Quote Link to comment Share on other sites More sharing options...
Turtle Posted November 22, 2009 Report Share Posted November 22, 2009 how is this instead? my teacher said to have around 6 cross braces. looks good to me! :thumbs_up i was going to draw a set of blue lines with 4 cross-braces, but didn't want to confuse the issue & wasn't sure how much material you could use. :lol: if you make cross-lap joints, it will be even stronger than just glued. 39. Cross-Lap Joint Quote Link to comment Share on other sites More sharing options...
tifuhnee Posted November 22, 2009 Author Report Share Posted November 22, 2009 oh goshh haha that looks hard. i've already started to build it and it's taking so long :thumbs_up and lots of superglue stuck to my hands haha Quote Link to comment Share on other sites More sharing options...
Turtle Posted November 22, 2009 Report Share Posted November 22, 2009 oh goshh haha that looks hard. i've already started to build it and it's taking so long and lots of superglue stuck to my hands haha no worries. it is advanced. next time. :lol: there's tips at this link on unstucking yer fingerettes. :thumbs_up HowStuffWorks "What makes super glue so super?" Quote Link to comment Share on other sites More sharing options...
UncleAl Posted November 27, 2009 Report Share Posted November 27, 2009 Not SuperGlue! Carpenter's yellow glue - and keep it off your hands (thin latex gloves). Use just enough as a very thin layer on both sides, no more. Meat or wood, what carpenters glue sticks together does not come apart. Clamp overnight with http://www.ted-kyte.com/3D/Pictures/Paper%20Clamp.jpgorhttp://www.ted-kyte.com/3D/Pictures/Paper%20Clamp2.jpg http://www.istockphoto.com/file_thumbview_approve/5816881/2/istockphoto_5816881-radio-tower.jpgOne presumes it will be pyramidal, right? Note missing third side. Measure twice, cut once. You are not in this to build a tower, you are in this to outperform everybody esle. Quote Link to comment Share on other sites More sharing options...
tifuhnee Posted November 30, 2009 Author Report Share Posted November 30, 2009 thanks you guys! my tower was tested last week and it held all of the 15 kg :)i was a little paranoid about it breaking, so i put some extra glue that i didn't need so my tower ended up being a just a tiny bit heavier than i would've wanted haha Essay 1 Quote Link to comment Share on other sites More sharing options...
Turtle Posted November 30, 2009 Report Share Posted November 30, 2009 thanks you guys! my tower was tested last week and it held all of the 15 kg :cheer:i was a little paranoid about it breaking, so i put some extra glue that i didn't need so my tower ended up being a just a tiny bit heavier than i would've wanted haha no problem. that's why they pay us the big bucks. :xparty: special nod of thnx to you as well. :cheer: of all who have chosen Hypography for balsa-tower-help, you're the first to report back on your results! :cheer: got a pic of the finished project by any chance? ;) did you notice what failed on the ones that busted? was it glue joints or the wood broke? what caused them to fail? is there any forensic follow-up or discussion in class? :) Quote Link to comment Share on other sites More sharing options...
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