No fucking clue mate sry 

 No worries 

 1. Learn CAD first.
2. Proper calibration is more important than anything else. 
3. Spend more on a printer than you think you can afford or you'll spend dozens of hours trying to fight the cheap printer you bought instead of learning how to properly print.  

 Thanks Beave 👍 

 I've been wanting to learn myself. Watched a few Onshape tutorials. Might try learning that a bit more before buying a 3D printer.  

 👍 

 I'm no expert but the Ender 3 with some fun attachments has been fun. Cura slicer software (FOSS, works on Linux). Thingaverse for files. Lots of tutorials on the YouTubes. 

 Thanks 🤙