LOGO
General Discussion Undecided where to post - do it here.

Reply to Thread New Thread
Old 10-19-2006, 07:41 AM   #1
Gymnarnemia

Join Date
Oct 2005
Posts
523
Senior Member
Default toothpick towers
well I have to make one for physics

rules:
height minimum of 35cm
weight 35g
width minimum of 5 cm
only toothpicks and woodglue can be used (no epoxy, superglue, etc.)

here is a design I just made
http://img181.imageshack.us/img181/4237/toweriu3.jpg

although acording to my crappy scale, 5 toothpicks = 1 gram so I'm about 2x overweight [surrender]

any ideas or know any sites with examples. I couldn't find much with google

I would like it to hold at least 200 lbs
Gymnarnemia is offline


Old 10-19-2006, 07:56 AM   #2
priceyicey

Join Date
Oct 2005
Posts
451
Senior Member
Default
You never stated the weight restriction. The only thing I can say is that while a dense structure will hold, your base will need a bit more width or the tower will be unstable
priceyicey is offline


Old 10-19-2006, 08:04 AM   #3
Gymnarnemia

Join Date
Oct 2005
Posts
523
Senior Member
Default
You never stated the weight restriction. The only thing I can say is that while a dense structure will hold, your base will need a bit more width or the tower will be unstable
weight added, force is being applied directly downward so I'm hoping I can get by with a narrower base.
Gymnarnemia is offline


Old 10-19-2006, 08:29 AM   #4
KevinDonae

Join Date
Oct 2005
Posts
347
Senior Member
Default
We did a project similar to this in my high school physics class except we had to build a bridge out of quarter inch square wood. We didn't have a weight limit, but the winner was based on a ratio of how much weight it could hold versus how much the bridge weighed. Mine was something like 2200:1, I got second place. The winner used dowels in the joints of the bridge, but I couldn't figure out how to make them for the life of me, and we couldn't use toothpicks as dowels, we had to make them out of the wood provided.
KevinDonae is offline


Old 10-19-2006, 09:53 AM   #5
masterboyz

Join Date
Oct 2005
Posts
586
Senior Member
Default
We did a project similar to this in my high school physics class except we had to build a bridge out of quarter inch square wood. We didn't have a weight limit, but the winner was based on a ratio of how much weight it could hold versus how much the bridge weighed. Mine was something like 2200:1, I got second place. The winner used dowels in the joints of the bridge, but I couldn't figure out how to make them for the life of me, and we couldn't use toothpicks as dowels, we had to make them out of the wood provided.
We did something like that, except it was with toothpicks and elmer's glue. Same weight held to weight of bridge ratio deal.
masterboyz is offline


Old 10-19-2006, 09:58 AM   #6
Geetiill

Join Date
Oct 2005
Posts
384
Senior Member
Default
If your objective is to hold up weight and it's feasible in terms of your building materials and design parameters, you should employ an arch.
Geetiill is offline


Old 10-19-2006, 11:29 PM   #7
SweetCaroline

Join Date
Oct 2005
Posts
450
Senior Member
Default
We had to do something like this in school too, except we had to make a picture of Santa using only Elmers, construction paper, plastic scissors, and cotton balls. Mine turned out pretty solid, in fact my mum still has it in a box somewhere...
SweetCaroline is offline


Old 10-20-2006, 12:07 AM   #8
Greactbet

Join Date
Oct 2005
Posts
492
Senior Member
Default
We had to do something like this in school too, except we had to make a picture of Santa using only Elmers, construction paper, plastic scissors, and cotton balls. Mine turned out pretty solid, in fact my mum still has it in a box somewhere...
classic [rofl]
Greactbet is offline



Reply to Thread New Thread

« Previous Thread | Next Thread »

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

All times are GMT +1. The time now is 10:42 AM.
Copyright ©2000 - 2012, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0 PL2
Design & Developed by Amodity.com
Copyright© Amodity