This parts are designed for Kossel mini 3d-Printers.You can use them to increase the accuracy of you’re 3d printer.The Sliders needs to be lubricated with any kind of oil.Use rubber band between the sliders and the effector to minimise movements in the rod bearings.Use rubber band between the sliders and the extruder to keep this in central position.

The Effector is not easy to print! Use the Print settings you can see in the pictures with the effector on the right side (Cura Slicer was used). Good Luck :-)