I started with Adoniram's Y axis stabilizer I used his bearing holders then made up a different mount with a tension spring I got at a local hardware store . The rods are 3/16 music wire from local hobby shop 7 inches long with a 90 degree bend at 1 inch from the end . the bearings are 5x11x4 mm as per Adonirams instructions. I did grind to ends of the wire a bit to fit into the bearing holders.Then centered the mount on the bed .You may need to glue the printed parts to the rods but mine are tight enough as printed . Printed at 3mm with support .If you like it let me know .