Creality Ender-3 V2: Setup, Settings and Upgrades

The Creality Ender-3 V2 is one of the most common hobby 3D printers there is. It is cheap, it prints well once it is set up, and almost every part can be replaced or upgraded. It is the printer I used for several projects on this site, like the OctoPrint enclosure and the Apple TV wall mount.

This guide is for anyone who has one, or is thinking about buying one. It covers what you get, how to build it, the settings I would start with, the upgrades that are worth it, and the problems you will meet first.

At a glance

The specifications come from Creality’s listings at several shops. A few details differ between listings and production batches, such as the exact stepper drivers, so check what is printed on your own board.

Is it still worth buying?

The Ender-3 V2 is an older model, and Creality has newer printers with automatic bed leveling and faster motion. The V2 is still a good choice if you want to learn 3D printing: it has a huge community, every problem has been solved by someone, and spare parts cost little. If you only want to press print and never touch the machine, a newer printer is less work.

Building it

The Ender-3 V2 comes partly assembled. Putting the rest together takes an evening, mostly the frame, the gantry, the screen and the cables. Take your time with these steps:

1. Check the voltage switch on the power supply. It must be set to 230 V in the Netherlands. A wrong setting can damage the printer.
2. Square the frame. Fit the upright and the top bar so the frame is at a right angle on a flat table. A twisted frame prints crooked parts.
3. Tighten the eccentric nuts. The wheels that run on the aluminium profiles should roll without wobble, but not so tight that the bed or gantry binds. Push the bed gently by hand: no play, no stiffness.
4. Tension the belts. They should sound like a low guitar string when you pluck them, not loose and not tight. The knobs on the belt tensioners do this.
5. Route the cables so nothing can catch on the moving parts, and push every connector fully in.
6. Check the screw terminals of the power supply and the heater cables. Loose terminals heat up, so tighten them once after the first hours of use.

Before the first print

Level the bed

1. Heat the bed to the temperature of your filament and home the printer.
2. Move the nozzle to each corner and slide a sheet of normal paper between the nozzle and the bed. Turn the knob until the paper drags with a little resistance.
3. Go round all four corners twice, then check the middle. Each turn changes the others a little.
4. Print a first layer test. The lines should touch each other and be flat, not round and not squashed into the bed.

Slicer settings to start with

I slice in Cura, which has a ready-made Ender-3 V2 profile. These are starting values for PLA, not final numbers. Tune them with a temperature tower and a retraction test for your own filament.

For big prints see the printing settings in Part 3 of the Pit Droid series: wall thickness in millimetres, a larger nozzle and bed adhesive spray.

Upgrades that are worth it

You don’t need any upgrade to print. These are the ones that solve a real problem, in the order I would do them:

Do one upgrade at a time and print a test after each one. If you change five things and the print gets worse, you won’t know which one it was.

The first problems and how to fix them

What I print on it

Several of my projects are printed in PLA on the Ender-3 V2, sliced in Cura: the OctoPrint enclosure and the Apple TV wall mount are two of them. The build volume of 220 x 220 x 250 mm is enough for most of these. For something bigger, like the life-size droid in the Pit Droid series, the designer offers split versions of the parts for smaller beds.

Words explained

• Bowden extruder: the extruder motor sits on the frame and pushes the filament through a PTFE tube to the hotend.
• Retraction: the extruder pulls the filament back a little when the nozzle moves, to stop strings.
• Z offset: the small distance between the nozzle and the bed for the first layer.
• PEI: a surface on a spring steel sheet that filament sticks to when hot.
• Thermal runaway protection: a safety feature that stops heating if the temperature does not behave as expected.

Conclusion

The Ender-3 V2 is a great machine for learning 3D printing: cheap, repairable and well supported. Build it carefully, level the bed, start with the PLA settings above and change one thing at a time. Add upgrades only when a real problem shows you the need for them. If you know how to keep the first layer flat and the belts tight, it will print for years.