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I have made several spinners using PLA, but I find that when they cool off the printer, the holes shrink just enough that the bearings won't press in. How do you overcome this? The only thing that has worked for me is to either put the bearings in while still hot from the printer, or heat the spinner in an oven and then it has softened enough to be able to pressfit the bearings. Any ideas?Thanks, and BTW, this instructable is one of the best I have ever seen!
If you coat the steel wool with some minerals used in real fireworks, the colors would be amazing - reds blues, greens, etc. You could even put the minerals in layers so that it becomes multi-colored as the steel burns.
3D Printing Class
Quick question..Since it will take time to get that much urine, will it spoil while being stored waiting for enough?
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