PM2017 wrote:davecutting wrote:PM2017 wrote:Where are people getting their weights? They seem ridiculously expensive.
Try your HS physics department.
Thanks for the advice, but unfortunately, that solution isn't available to us.
One of the physics teachers at our school hates SciOly, so she won't help us. The other one doesn't have any to lend us, especially not for the whole year.
Try this: https://www.amazon.com/Ajax-Scientific- ... eel+weight
Or this: https://www.amazon.com/American-Weigh-S ... eel+weight
I'd probably go with the second one since I can 3D print an adapter, but the first one has a nice hook on it for your string. I'd also suggest setting up some sort of linear rod with a recirculating linear ball bearing so that the weight stays where it should.