RF30 CNC Conversion

grabcad

Project Overview:This is another Rong Fu RF30 mill/drill conversion project that I'm undertaking. After scouring the internet for ideas and inspiration, I gathered a wealth of information from various pictures, but unfortunately, I couldn't find any detailed drawings or measurements to work with. Given that I only have one mill at my disposal, I decided to take matters into my own hands by disassembling it, measuring its components, reassembling it, machining the necessary parts, and so on. Although the project is not yet complete, I've identified the main components required for this conversion. Please note that some of these measurements may require slight adjustments once finalized. At present, the mill operates smoothly on all three axes, but I'm still using the original lead screws – a setup that works well, albeit with considerable backlash. To rectify this issue, I've procured ball screws and created 3D models to facilitate their integration into the system. However, this process is far from over yet. Purchased Components:X Axis - 2 x 51101 Thrust bearings, 1 x 6200-2RS radial bearing, SFU 1605 ball screw, and corresponding nutY Axis - 2 x 51101 Thrust bearings, SFU 1605 ball screw, and matching ball nut housingZ Axis - Instead of using a lead screw, I opted to retain the original ring/pinion – rack/pinion design.Nema 24 high-torque dual-shaft stepper motors for all three axes, along with drivers and power supplyArduino Uno R3, GRBL controlFlexible spider couplingsMiscellaneous hardware.