I would say not so easy my self. Different machines. I would by a 3d printer from china before I tried that. Maybe you have a goal in mind? Explain a little about your situation to understand the need to do this. So we can better help you.
Thanks. I bought a mini CNC3020 many years ago, and I built a larger one later on, so the 3020 never be used again. I added some thing on it before, just printed some little useless things. It's why I like to refurbishment it just for reuse it.
While I understand the desire to keep a good bunch of parts from going to waste, for about the half the cost of a new 3D printer you can turn it into... half of a 3D printer. The Z-axis is just too limited to provide meaningful results and if you start spending money on increasing the Z-axis you quickly get to the point where you should have just bought a new printer. I would suggest turning it into something else like an eggbot, a laser, or a mini cnc lathe/pen turning machine. You might just consider donating it to a public school or makerspace which is truly the best way to give old systems new life and help the next generation get their toes wet.
Thanks. I'll take consider of your point of view. BTW. do you have a Brand recommendation of 3D printer at $300 - 500? Or the better cost performance. or what should be think over for a new buyer?
Hopefully someone else will chime in as I'm not the most up to date. @Keith Davis is generally a good source here but there are lots of other members that can answer better than me. One thing to keep in mind though is it will probably go the way of your 3020 after a few years. You'll outgrow it and want to build your own bigger and better system from what you've learned.
I personally had 2 3D printers. Anycubic I3 Mega usb connection. And my current one Ender 3 you have to use a memory card to print your STL's. So far Ender 3 is my favorite.
Seeing as you have build experience, why not do your own? 3D PRINTER BUILDS | OpenBuilds - lots of inspiring examples
Thanks. Checked the Ender 3, they have Ender 3 / Ender 3 pro / Ender 3 max etc, even Ender 5 / Ender 6, should I buy a newest one or just enough for me to use? I searched the following factors: 1. ~300x300x400 print size; 2. dual extruder or mix extruder; 3. usb/ sd card/ WiFi; 4. what else?
Thanks. I was planed to convert a CNC into a 3D Printer because of time and space saving, just don't have time to build another one.