I am looking to buy a 3D printer for my son (and for myself too). We want to print, not tinker, so it should be something that gives great results right from the start.
Can you guide me to a sensible choice?
My first choice would have to be the Prusa MK3S Plus but it is outside the price range I am shopping for, except if I buy used – would that be bad to do?
Realistic choices:
- €380 used Prusa MK3S+, with 10 days printing time
- €400 new Prusa Mini+
- €250 new Ender 3 V2 Neo
Criteria:
- High quality, no hassle. I want to print, not tinker.
- Preferably (semi)assembled.
- Auto bed leveling.
- Auto error detection (filament, power, etc.?).
- Budget up to 600 EUR/USD including extras, excluding filament.
- Speed is not important.
- Size is not important.
- Must not be cloud-based.
Questions:
- Surface?! Smooth, os satin, or textured? (Why) Should I have more than one kind?
- (Why) Do I need an enclosure?
Largely agree, but two small counter points.
Active bed (or gantry) leveling, which actually squares the bed relative to the extruder, is very nice. I’m wrapping up a Voron 2.4 build and this was one of the features that motivated me to go this route. Sure it wasn’t the only one, but I was so tired of my Wanhao I3 clone maintaining bed level as you said then radically loosing it because one of the two z steppers randomly decided to misstep.
I haven’t built a filament runout sensor into my Voron, but probably will fairly soon. I tend to print larger prints and really disliked the constant game of “I wonder if I’ll have enough filament” as I got to the bottom of a spool.
Yeah, these are sure nice quality of life things, but also not super high priority for a beginner.
Regarding the active bed levelling, there are a few other options to get the same effect. First, if you have any of the TMC drivers with stall guard (and it setup correctly), random missteps just don’t happen. That’s maybe the best way to go since it fixes the issue at the source and prevents it from happening during the print.
A second option is to tie your Z axies together with a belt. That way they all do the same, and you can just replace all these motors with a single big one.
Or you go the creality route and just use a single Z axis, but that requires a really stable gantry/bed, depending on what hangs off your z axis.
Also, skipped steps (especially on Z) aren’t really a normal thing and point either to a mechanical issue (check bearings, belts, pully screws and obstacles), too weak motors (rare if you are using stock motors) or too little stepper motor current. Especially the last point. Turn the current up a little and see if that resolves skipped steps.
I haven’t had a single skipped step on my current printer, which I have had since 1.5 years. Did a motor current tuning when I got it (necessary because I swapped the mainboard) and that’s it.
The problem with dual Z is when you turn off the printer, motors lose power and can missalign. You can connect motors with belts or just print some brake-like part that makes enough friction to stop motors from moving under weight of printer itself. Idealy you will have 1 motor per axis
I had a dual Z printer before (Tronxy X8), so I know the issue.
I already mentioned tying the motors together with belts.
But if you want to not do any modifications, you can also move the print head off the bed, disable software endstops and move the Z axis down until both motors start to skip. That sounds bad but doesn’t hurt the mechanics or engines at all, they are built with skips in mind.
That also aligns both Z axies.
nice quality of life things, but also not super high priority for a beginner.
I disagree on the “beginner” part. Yes, I am a beginner, but that does not mean I want an entry level device, nor that I want to replace this device soon.
I want one solid machine that I will be content with for years. So any QoL details would definitely be useful, even or especially to a beginner.
More systems means more that can go wrong and more difficult trouble shooting. No matter what printer you get, stuff needs to be tuned, stuff needs to be maintained and stuff breaks.
Getting the biggest best do-it-all device with all the bells and whistles (like a fully speced Voron) means not only that you spend a massive amount of money for a machine that does the same thing just a bit faster, but also that you have tons of things you need to watch out for.
Auto bedlevel, for example, is by far not a fire-and-forget solution.
Upgrades are also a thing. Once you get into printing and understand what it’s all about you will learn what you want and need. This allows you to upgrade the machine and make it better. Especially the Ender 3 series is built with upgradability in mind. They have a lot of drop-in upgrades that are as simple to integrate as the (very simple) initial setup of the machine was.
If you buy your first car you also don’t start out with an 800 PS super car or a semitrailer.
