Summary

Thank You to z41d for the original design! A Syrian Hamster can get as wide as 80 mm so I took the original design from z41d and scaled it to 173% of the original (except for the connector) and the distance between the spirals are 80.01 mm. I printed everything in Sunlu PLA Transparent(Clear) (affiliate discount link below) and the normal tube with spiral's (used for the hamster to climb with) takes 3 hours 36 min and has about 5 layers of plastic and uses 112 g. I then removed the spirals on the straight parts and it takes 1 hour 59 min and has 3 layers of plastic and uses 56 g and also allows you to see the hamster better. At 173% the connector was too tight so I tried 175% and worked good. The problem is it took 2 hours to print and lots of supports to remove. By removing the middle ring and combining them together in 3D Builder it allowed it to print with only supports on the upper handle and I used Bambu White Support material with my Bambu X1 Carbon which made it super easy to remove. To print the 90 I also used Bambu White Support material which made is super easy to remove the supports. Finally, I designed an end cap so that you can make a section that has an end and the hamster turns around.

Here is my affiliate discount link
https://www.sunlu.com?sca_ref=5346943.fSpGWrhJXW
Click on PLA and search for PLA Transparent(Clear)