Tube Toy Remake

The Story:

My kids have a building toy known as "Tube Toys". They are little pipe/tube shaped toys that interlock with each other end to end. I couldn't resist trying to see if I could measure and model these tubes precisely enough for them to interlock properly. I used calipers to measure the inner diameter, outer diameter, etc. until I felt I had precise enough measurements. I then used those measurements to remake them in CAD and sent them to my Ender 3 for printing. I was amazed how well it worked out. They are almost a perfect match, and as seen below, the old and new tubes fit into each other perfectly.