1

I would know which is the best upgrade for Prusa Hephestos i3. My 3D printer is relatively old (3 years), and I would improve its printing capabilities. Thanks

2

I’m not familiar with yours specifically, but most i3 clones can benefit from:

External Mosfet
Upgraded Electronics (Duet is the best)
Genuine E3D Hotend
Stepper Dampers
Anti-backlash Nuts
Fiber-Reinforced Belts
Upgraded Extruder (Bondtech or SeeMeCNC EZRstruder are my favorites)

and of course, regular maintenance including greasing of rods/lead screws, and tightening of all grub screws.

Best of luck!

3

Thanks a lot Maddie for your suggestions.
These are very good tricks.
Unfortunately, I am not very expert, so I need to go more in deep on the upgrades I really want.