Filament Roller for 10x19x5 bearings and 10mm carbon rod

thingiverse

## **Materials Required** ## * 8.5 million meters of Filament * 2 Hours Print time, depending on speed of printer * 4x 10x19x5 Bearings (I'm using 10x19x5 ZZ) * 2x 125mm L x 10mm W(OD) Carbon fibre / Metal Rod ## **Why?** ## I needed a spool roller that I could make easily with bearings and parts I already had. My spools are all different sizes, so I wanted something easy to swap around as required. I also wanted it one piece because lining up two sides is annoying. Some of my RC Helicopters use 10x19x5 bearings in the blade grips, and after a crash they can get notchy when side-load is exhibited on the bearing. They're too good to throw out (Maybe I'm a hoarder?), so I keep them for re-use in other applications. The Carbon rod is used as bracing material that's also used in RC Helicopters for the tail boom. ## **Method** ## 1. Print the base in your desired filament. 2. Test fit the bearings into the little curved slots - They should be snug and not fall out when turned upside-down. 3. Remove the bearings from the frame. 4. Feed one bearing on each side of the 125mm length of rod - The bearing should slide on with minimal force. The rod should NOT protrude out of the other side of the bearing. You may need to chamfer a small ridge onto the rod to make it easier to insert into the bearing. 5. Slide the completed bearings and rod assembly into the holder base. 6. Test that the rod rolls smoothly and evenly - If there's a wobbling effect on your bearing then the bearing is not straight on the rod, remove and give a gentle tap on a desk to assist in leveling.