CNC 3018 Pro Upgrades

thingiverse

I bought SaintSmart CNC 3018 Pro in big dreams. I planned milling PCB with it. In my first try i didn't get good results. Then i engraved play wood with it. Its little bit good. When i used my machine i saw my Z axis vibrated too much and bearings take off their places. Bearing holes are larger than bearing size. I used some screws for solve this problem but at the milling PCB this fixs not solve my problem. My CNC's problem: https://youtu.be/HUETNqpFnL0 <iframe width="560" height="315" src="https://www.youtube.com/embed/HUETNqpFnL0" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe> I redesinged X and Z axis parts and I used my machines own parts for this. No new thing required for this desing. Note: I broke my machines plastic parts for taking backslash nuts. You can see photos above. I make some sanding and i use oil based lubricant (WD-40) for fitting bearings to their holes. PS: This project in work in progress now. I planned design electronic card box. I use height map for leveling PCB surface. So i will add headphone jack for auto leveling probe and on-off switch for spindle later. I added SolidWorks files for editing. UPDATE v.1.1 ------------------ I make a new Z Axis and spindle carriage part which is like original part. No need screw for fitting z axis and spindle carriage. It is one piece. I didn't try it yet. UPDATE v.1.2 ------------------ Improved X Axis. UPDATE v.1.3 ------------------ * Cronos Maker CNC Control Card v.1.1 based Card Box Designed. * Emergency Stop Button box added. (28mm arcade button) * Added 3.5mm Female jack (headphone jack) to box for probe. UPDATE v.1.4 ------------------ * Added Case for Woodpecker CNC control card. I didn't test it. But card probably fit to box. * Added 40mm fan for box cover. * Circuit diagram added.