Renkforce RF100 Y-Axis damage prevention clip plug & play

thingiverse

Earlier or later, the RF100 3D printer starts making a clicking noise similar to pressing a micro switch. However, the printer continues to function properly. Locating the source of the tone proves challenging. One of my two printers was affected by this problem, so I invested many hours researching online and conducting experiments. The issue appears to be with the belt connecting the Y-axis to the motor (photo). Initially set quite tight, I first loosened it slightly but the clicking sound persisted. To resolve the problem, I had to disassemble the printer until I could access the bearings at the ends of the Y-axis. Repairing them involved simply submerging them in oil for about 10 minutes. Next, I attempted to find a solution that would prevent the printer from bending the axis. Initially, I tried creating a housing for a separate bearing, which was screwed into the top of the printer. This required disassembling the printer and drilling at least two holes into the printer's housing. However, if it didn't fit perfectly, I had to disassemble again and again, making this solution unfeasible. Seeking a quick and easy-to-install solution that wouldn't void the warranty, I experimented with various clips. One option consists of a half-linear, fully printable bearing. It's plug-and-play: simply clip it onto the axis next to the motor. For best results, adjust the motor to an exact 90-degree position using my Y-axis calibration tool. If you haven't already done so, print a belt tension measuring tool like mine to check the belt tension. The ideal tension should be similar to that of the belts on the X-axis. Y-axis calibration tool: https://www.thingiverse.com/thing:2437878 Belt tension measuring tool: https://www.thingiverse.com/thing:2437913 Please refer to the images for more information and examples. I have two of these printers, and the clip fits perfectly on one but not the other. There's a 2-millimeter difference in measurement from the top metal housing to the axis center. You'll find both STL files included. The first one is suitable for my first printer, while the second one, which is slightly less than 2mm, should work for the other. I've also included the SketchUp file so you can easily modify the models if they don't fit your printer. After printing, apply teflon spray to lubricate the printed bearing! <h5>I take no responsibility for this model. Any actions taken are at your own risk!</h5> Good luck.