8 inch/20ft radius/40ft diameter circle ring segmented

thingiverse

Print four identical 4-inch rings, then link them together, end to end, to form an 8-inch diameter ring. This design is ideal for creating a 20-foot radius spell effect marker that allows you to maintain control over your minis without having to pick them up individually. By keeping the print size small, this design can be easily accommodated on a Monoprice Select Mini printer. The resulting 8-inch circle ring will have a diameter of approximately 40 feet when linked together, effectively creating an area of effect (AOE) with a significant radius.