I did some weight testing with bags of concrete of 60 lbs each. I placed four of them on the rollercoaster car frame to get a static load up to 240 lbs (109 kg). I also got started on a longer piece of track so that I can test the dynamic load. Next week I'll get to finishing the piece of track, and stress testing that as well. I'm also looking into how to do curved pieces of track, but I'm going to hold off on that until everything else is ready.
So you may have noticed I haven't posted any updates since October. That's not because I'm inactive, but it's just that the circumstances have been such that I haven't been able to go in and work on my project. First, it's been getting darker earlier, which makes it hard to go in and work during the day. I get out of school at 3:35pm, and the sun goes down around 5:00pm. This means that by the time I get to FabLab after school to work on my project, I only have about half an hour of sunlight left to work in. Also, I'm currently working on figuring out how to bend pipes, and I don't have all of the tools I need yet. The plan for bending them is to pour hot sand into the PVC piping to make it more pliable, then strap it to a jig to bend it. For that I need something to heat the sand in large quantities, and all I have right now is a small camping stove; so not quite enough. College applications has also taken up a large chunk of my time the last couple of ...


Looks good. I did static testing on my first cart and 10-ft section of flat track up to 830 pounds. https://www.youtube.com/watch?v=7dUqYM6Cm1w
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