You can also see why you shouldn't use grub screw-couplings on your CNC. The grub screws are loosening over the time. The same will probably happen to bolted connections on many direction changes. The hole may wear out. This will not lead to complete failure but it will cause backlash. Best would be to use clamping connections. I'm still using the grub screws for the next few weeks but I'm already working on plans for a new CNC mill with a lot other improvements.
Because the props and motors are the source of vibrations they have to be balanced very well. I already made a tool a while ago. I used it with two champagne glasses but it was a annoying because the prop fell down all the time. I decided to make one with two magnets similar to those you can find in the web. You can also see why you shouldn't use grub screw-couplings on your CNC. The grub screws are loosening over the time. The same will probably happen to bolted connections on many direction changes. The hole may wear out. This will not lead to complete failure but it will cause backlash. Best would be to use clamping connections. I'm still using the grub screws for the next few weeks but I'm already working on plans for a new CNC mill with a lot other improvements.
1 Comment
Julian
1/6/2022 06:37:38 am
Nice mechanical experiment. I learned a lot with the pictures provided! I want to share a company that provide my driveshaft needs. "GJ Drivelines". https://gjdrivelines.com.au They have great mechanical servicing, with expertise in bearing service, as well as driveline services. Thanks again.
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AuthorFelix Z., 25, mechanical engineer. Fascinated by: CNC, computers, electronics, software/games, scale models, 3D-printing and a lot more Archives
December 2015
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