I can’t seem to understand what PVC rings are used in the FIRST Tech Competition. I google imaged 3" Sch. 40 PVC pipe, but can’t seem to get a common picture. Could post a link of a pic of the ring, and/or a link to purchase some of these rings.
I believe the rings will simply be 3" SCH 40 PVC pipe cut into 1" lengths. 3" Schedule 40 pipe has an ID of 3.042", which I suppose is close enough to the 3" listed as far as FIRST is concerned.
McMaster-Carr part #48925K17 would be an appropriate material, but you ought to be able to get it locally at any Home Depot or Lowe’s.
bingo…
the official Q&A system is ready, but hasn’t been made viewable to the public yet. That should transpire later today. Be sure to ask your questions there