To get 150lbs on a 1 metre bridge with 300 sticks might be possible, just. I think it would be
quite difficult.
Mine got about 670lbs with 100 sticks over a 50cm gap. Scaling up by a factor of 2 I'd expect more problems with cross-bracing to stop the compressive members buckling. To scale my design would take 4x the number of sticks i.e. 400.
You can probably get sticks in a craft store, and wood glue in a hardware store. I've even seen sticks in a supermarket on an impulse buy hook.
Thanks for the valuable information adaviel on hot glue for popsicle stick bridge.
Easy – silicon sealant isn’t an adhesive so don’t use it like one. Hot glue should do the trick but it’s a little bulky if it starts to cool before you clamp everything together. Good old-fashioned wood glue would give you more working time, would absorb into the wood, and should have plenty of bond strength.
my fav
http://www.gorillatough.com/
Wood Glue ... Sealant is flexible and gives.
Hot glue is stronger and quicker, but more expensive.
For my physics project, I want to build a popsicle stick bridge (a little less than one meter long) strong enough to withstand ~150 pounds standing on top of it. I'm planning on gluing two popsicle sticks to make it more sturdy, but I'm just curious which is better to use and stronger: silicone sealant or hot glue. I'd appreciate it if you would provide me your answer as well as a brief explanation as to why you say one product is a better choice than the other.
Also, if you can provide me with a link where I can get a good amount of the product sufficient enough to glue together 200 to 300 sticks, that'd be extremely helpful!
Thanks!
