Tube cap
thingiverse
You can easily adjust diameters and heights, plus all three rounding options are available. Adding teeth boosts holding strength, especially when working with flexible materials. What's more, you can set a height equal to the diameter, but it needs to be at least one layer thick. If not, the diameter will shrink slightly due to changes in the model during slicing.
Download Model from thingiverse
With this file you will be able to print Tube cap with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Tube cap.