Ikea Tertial Base w/bearings

grabcad

Finally a solid foundation for the Ikea Tertial lamp! I designed a similar base a year ago but didn't share it because of some problems: The bearings made it extremely smooth, so if the surface wasn't perfectly level, the lamp would fall freely and rotate towards the lowest point. Because of the high lever at the base, several layers of the 3D-printed base cracked apart. I finally decided to fix them. I've added a braking system to prevent the lamp from rotating freely due to gravity. Initially, I thought of using an aluminum indexing plate with a ball plunger, but then I changed my mind and chose a simpler friction brake (both adjustable). For my lamp, I went back to my original idea, but I believe the friction system will be more durable and easier to make - no need for a CNC machine, just a 3D printer. Anyway, I'm sharing both designs in case you prefer one over the other. To solve the layer splitting issue, I used more screws not only to secure the lid and internal parts but also to reinforce the entire base by attaching them from end to end. Bill of Materials: 1x Base (3D printed) 1x Lid (3D printed) 1x Smooth_plate (3D printed - highly recommended) or 1x Index_plate (CNC-cut) 1x Lock collar with set screw (for 8mm rod) 1x 8mm steel smooth rod (I used M8 thread rod) 2x 608 bearings 1x M5 locking nut 1x M5x12mm ball plunger (a set screw will work on the friction plate) 8x M3x35mm socket head screw 8x M8 nut See pictures to learn how to glue the rod with metal epoxy to the end of the lamp and the friction plate to the lock collar.