3UP Printer XY Bearing parts for 608 BB

Uses 608RS bearings rather than the 3/8" center hole bearings from the one/two up. Motivation is that I keep needing my one up printer to make parts but want to put my oversized 3UP together and don't want to buy more parts. Bought 16 608RS bearings (they are cheap) and might as well use them though out the design.