MTG Magnetic Playmat Tube

This is just a basic playmat tube. It splits in two pieces which are held together using 6x2mm disc magnets (the same as gridfinity incase you have some extra magnets laying around). The magnets are on the weaker side so they don't quite hold it together on their own, but the spiky bits help keep the two halves in place and the magnets help align the halves during transportation.

You will need to stop the print in two different places in order to get all the magnets in and I recommend alternating the polarity to get the best hold possible. I printed it in PLA+ with no supports or brims and it printed fine on my SOVOL SV06 ACE, but you may want to use a brim for peace of mind since it is quite a tall print. The two halves are identical, so you will need to print two of them for a complete tube. 

I prefer the embedded version because I think it looks a lot cleaner, but if you care more for getting the strongest hold and don't want to pause the print two times, then you would probably prefer the glued magnet version.

Because the magnets have a pretty tight tolerance and the print is fairly long, I added a test print which just prints one of the points so you can make sure everything is dialed in first. I added some reminders for the polarity on it too so that you can also use it to help align the magnets. (The last picture is a cut away of how the magnets should be placed inside the model for the strongest attraction)