2417 China CNC - MODULAR Z-Sled upgrade

thingiverse

I recently got a fantastic bargain on a CNC machine from China, and I was pleasantly surprised by its performance. Considering its price, it's not bad at all. However, I knew that the 775 Motor wouldn't be the best choice for a spindle, so I upgraded to a more powerful option - a 400W 52mm spindle. To avoid having to disassemble the entire Z-Axis every time I swapped out tools or motors, I designed a system using six M3 screws with heatset inserts. This made it easy to attach and detach components without causing any damage. I also created a clamp for the original 775 motor that came with the machine, as well as a plate where I could secure the new spindle's bracket. Next on my list is designing a penholder for this mount. Once complete, I'll be able to label the PCBs I mill with it later on, making my workflow more efficient. To make this project accessible to everyone, you can either use 4mm M3 heatset thread inserts or modify the hole size using the provided CAD files. For those who want to dive deeper into the design process, I've included the original Fusion 360 file as well as STEP and IGES files for further customization. Additionally, I've provided STLs for anyone who wants to print their own components.