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Please help me choose my first 3D printer, with the features I need

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?
57 comments
  • I’ve owned 3 printers, all cheap. For what I spent fixing it upgrading them I could have bought a Prusa. More than saying my next printer will be a Prusa, I can say that I actually have one on preorder.

    Also, I will never buy a fdm without a bed leveling function. No, it’s not necessary, but if you want a low frustration printing experience, it is - in my direct experience - essential. Prior to having abl I would keep an eye on every print start. With abl I send a job to the printer and check on it when I get around to it.

  • If you can trust to that used mk3, 10 days is nothing, I would go for that one. My average print time is 6h so it means someone printed like 40 prints and I could do that in bit more than a month of average use. They are made for way more hours.

    High quality, no hassle. I want to print, not tinker.

    Sadly, there is some thinkering involved even with $2k+ machines. Getting prusa over ender is like paying more to dodge desing flaws, faulty parts and crappy support, its not buying plug&play machine. Its still hobby grade machine. Most important is to have loads of patience and prepare for learning advanture, but thats super fun IMO. Once you master your machine, after you experienced many failed prints on it, you can then proceed to plug&play workflow.

    IMO, assembling your first printer is highly recommended, it will help a lot in the future. Auto bed leveling is pain that you need only if hardware is not built in low enough tolerances, so if you can get printer that prints good without abl its even better. Speed is super important, print time is quite huge on even fast printer. You can expect 12h print for some 15x15x15 cm part with 0.4 nozzle and 0.2 layer height. And thats quite optimistic guess, some prints take days to finish. You will always balance between speed and quality. Using 0.8 nozzle can push 4x more flow with proper hotend if quality is acceptable. So its not just about axis movement speed or acceleration, its quite important how you model your parts and how good you are with your slicer. Using different infill or model orientation can be a big thing sometimes.

    About size, smaller machines are more rigid but can print smaller parts obviously. Since printing is super slow, smaller is better for cheap machines imo, but kinda limiting if you want to print long flat parts for example. Prusa mini have cantilever X axis, so it has to be much smaller or use much higher cross sections for same rigidity as mk3. Rigidity is actually a limit for your max accelerations/speed without losing on quality.

    Also, I wouldnt put filament sensor and power features on the list. Lot of people disable them due to issues they cause, it sounds more usefull than it is. 1 kg of filament is like 24 hours of print time and its not hard to guess if you have enough material for a job (slicer will tell you how much you need). If you lose power printer will stop and probably make scarf cuz heated nozzle will heat everything around it. If thats not on the visible part, you can messure your print and continue from there, or just print top part and glue them together. Its quite hard to continue without noticable mark afaik, and UPS is probably the right way to deal with it. I lost power 4 times in 7 years, found that a lot, but was lucky cuz printer was on idle every time.

    Start with PLA since its the easiest to print and suits most people. PEI sheet with no enclosure will work easy, but make sure A/C or window is not blowing air on one side. Enclosure is still amazing, it protects printer from dust, isolates some noise and it makes environment temp more stable which is super important, especially for materials like ABS. It can also help in keeping your filament dry, especially if you want to print PETG (filament drier is recommended and almost must have for PETG anyway). Its safe to start without one, but deffo plan to get enclosure in the future (even cheap ikea lack will do).

  • Stay as far away from Creality as you can. I HATE mine despite people recommending their products all over (at the time) Reddit. WireCutter (NYTimes) also recommends against them primarily for setup and maintenance pains.

    Just look at this video: https://youtu.be/ubZMG_1PK20

  • I’d recommend the Ender 3, I have the Ender 3 Pro v2 I believe, and it’s been very reliable and worked right out the box. I got it on sale at micro center for $100 USD, I’ve heard they go on sale fairly regularly.

    Assembly is easy. It doesn’t have auto bed leveling, but the adjustment knobs are easy to use (look up some videos on using a piece of paper and moving the X and Y location of the extruded to level).

    It doesn’t have error detection, but I’ve seen some mods online that use an Arduino for this. Even with error detection I don’t think it’s recommended to print unattended due to fire risk.

    It comes with a removable flexible textured print surface with heated bed. This texture helps with print adhesion by keeping the part being printed secure while printing. And for fragile parts, you can remove the print surface and bend it to help remove the part after printing is finished. This has worked nearly flawlessly for me, compared to earlier printers where people would use painters tape/glue sticks/etc to help with bed adhesion.

    An enclosure is a nice addition, but not really necessary unless you’re doing large prints or really trying to push the boundaries of what you can print. The idea of the enclosure is that it keeps heat in to prevent the part from warping as the extruder moves up along the Z axis. For small parts the heated bed will provide enough heat. You can build one out of plexiglass and 3D printed brackets, or an ikea coffee table (look online for examples).

57 comments