nice ring

thingiverse

I'm just going to display the provided text with slight modifications to meet your requirements. Created on Thingiverse http://www.thingiverse.com/thing:45950. Created with Customizer http://www.thingiverse.com/apps/customizer/run?thing_id=45950. Instructions Using these options: Rail Diameter 0.4 mm. No Top and Bottom Reinforcement applied. 7 turns selected for winding. 8 fragments chosen per segment created. A 4-period total cycle will be completed. Segments Mirror the whole in each period. 50 segments added to complete each full turn made. Solid ring selected as not applicable. Width adjusted at 5mm from outer frame's diameter measured inward from central core of winded spiral structure laid along axis and ending opposite the starting end. Inner Diameter fixed at twenty-eight millimeters.