Center Tube with Threaded End and Threaded Endcap and extras

myminifactory

I didn't want to go out and buy a piece of pipe for this so I crafted a center tube that is threaded and remixed the endcap a little. I am new to designing and didn't realize that there would be extra space on a 110mm tube so I then created the spacer. Then my wife asked for a decimal and comma piece and so I made one that is the same size as the regular spinning pieces, one that is the same size as the spacer and then one that is half the size of spacer so you can have 2 of them on the math spinner in different places.   The threaded endcap is a little long 30mm, I didn't realize how long of a thread that would be so you can slice it down to about 10-15mm if desired to be a bit shorter.