V groove bearing pully

thingiverse

Parts: Pulley Support x1 (Printed Part) V Groove Wheel x1 (Printed Part) 623Z Bearing x1 (OD 10mm, ID 3 mm) M3x15 Bolt x1 M3 Nut x2 M3 Washer x2 Assembly: Set the inner diameter of V Groove Wheel to 4.8 mm for a press fit with the bearing. I used the press fit technique to ensure a snug fit. To press fit the bearing into the wheel, heat it up for three to four seconds using a portable gas torch or lighter, then push it into place and secure it with a C clamp or bench vise. To use an M3 set screw, change the diameter of Bearing_623Z() to 5.0. Module Bearing_623Z() { Cylinder(r=4.8, h=4+2); // 4 } Add two M3 washers on either side of the V Groove bearing. Fasten the V Groove bearing onto the support using an M3x15 bolt and one M3 nut. The V Groove wheel should spin freely without rubbing against the inner wall of the support. Print Settings Printer: Bulbul Junior Rafts: No Supports: No Resolution: 0.2 mm Infill: 30% Notes: Print the support and V Groove wheel simultaneously. My counterweight system for a flying extruder uses two pulleys. Design Process: Pulley of the Counterweight System The previous pulley using a 623Z bearing caused stringing issues due to gaps between the bearing and support while printing. I purchased V groove bearings locally but left with frustration, wondering why simple parts like this had to be imported from abroad. I decided to design a V groove bearing and found a model on Thingiverse, but it was overly complex. After studying the SCAD design, I borrowed core concepts, merging two identical cones at the center. Press fitting 623Z bearings into the V Groove wheel creates a functional V groove bearing!