air engine design by yuris

thingiverse

https://youtu.be/7ZV9qW8aRv0 https://youtu.be/pbG5T6uKxwQ Thanks Yuris! I'm sorry! I made a mistake. The original address is https://www.thingiverse.com/thing:2456231 First run. I think it should run better if it's debugged. I changed the cylinder to copper. So, I redrew two files. The size of the copper pipe is 19. Inner diameter 17. Length 20 In addition, I used the 2 * 5 * 2.5 bearing. So, the cam rod has also been changed. When the printing is finished, the red line in the figure should be removed with a knife. Otherwise, it won't work. Because there's not enough space inside. The purpose of the middle thickening is mainly to use a longer spring, so as to obtain a smaller elastic force. I used the spring in the ballpoint pen and cut it off. Because I only made a two-cylinder version, the position of the air inlet was changed. I use the M6 air pipe head. The thread is about 10 in diameter. So, I can screw it in directly.