Printed in PLA with 0.15 layer height.
Different filaments/printers may require different gaps for joints to work well - try printing a few pins and segments with gap 0.2 to start before printing more.
Source file allows creating segments with arbitrary angle and gap.
Classic version has 4.5 full circles - 18 segments if using 90 degree ones.
The author marked this model as their own original creation.