Circle helper target stencil

After I published my last project I got a request to make a circle helper for making targets on A4 pages. That's why I have on one side holes for 1" 3" 5" 7" diameter circles. But then I thought why not to expand it to make a bit more use of it.There is a center line so you can make circle graphs.The other side has holes after every cm.There are small circles on the rim every 5 degrees.The holes are 4mm diameter so you can use markers, but normal pens and pencils are fine too.You can use it on a white board, might be good in the classroom also. You can make graphs or teach kids about electron shells or something like that.NOTE: use some kind of oil in-between the two parts (I used vegetable oil from the kitchen), you can take it apart oil it and put the two parts together. I printed with PLA.Elephants foot can be a problem, I recommend using a raft.Check this: Update added 03.09.22Indicators every 5 degreesV1.1 availableUpdate added 04.09.22Magnet holes added on the corners 6 mm diamet