CTC Z-Axis-Stabilizer

thingiverse

First trial to stabilize the z-axis thread shaft of the CTC printer. Ok, the z-axis is stabilized by the lateral plain bearings, but it wobbles very strong and thus reduces the accuracy of the X and Y positioning. Perhaps also usable for identical Makerbot and FlashForge printers. Best results in combination with better z-axis brackets like this: http://www.thingiverse.com/thing:497923 This thing was made with Tinkercad. Edit it online https://tinkercad.com/things/dXkjVFjrSjw Instructions Print: with support layer 0.2 mm or less infill 60-100% Before installation, check the ball bearing fits well into the hole. Mount: move the platform down mount at first the blank stabilizer (without bearing) let the screws loose move the platform in the top position adjust the stabilizer to center the axis in the bearing hole press in the bearing (F 605 ZZ, 5 x 14 x 5, see important note below) check the smooth moving of the platform (moving manual up and down) be sure there is no collision between stabilizer and platform case Pulling the screws with platform in top position Important note: The Z-Axis of CTC's seems to be often different. In my case the Z-Axis has an pivot/spigot with 5 mm diameter on the top - so, I need an 605zz bearing. Some other has an 8 mm end-to-end Z-Axis - in this case you will need an 608zz bearing. So it's important to measure the top of the z-axis previously!