Ask HN: What's a good 3D Printer for sub $1000?

Regarding Z-homing being last - usually endstop positions are on Z-, not Z+, so they do a bit of a hop (2-10mm upwards Z) before the X and Y homing so they don't crash the head. If your Z endstop is on Z-, you can home that first since you know the head is out of the way.

EDIT: to be specific, this is for "bed-slinger" printers, but the concept is the same for fixed height tool head printers (eg where the bed is what's raised and lowered).

Our makerspace at the office has a few prusa mk4's, and they're really great machines.

I avoid buying 2d printers because they are so maintenance heavy... I use a 3D printer in a shared makerspace, where whoever has the most avialability takes on maintenance issues when they arise.

The Prusa mk4's we use are extremely reliable; most problems come down to users doing dumb stuff... or at least, doing risky stuff and not monitoring the print.

I find that I usually have some /kind/ of print I'm making (say, very hollow terrain pieces for tabletop wargames) get my printer settings dialed in over the course of a few failed prints, and then can print more of that kind of thing very reliably. In other words, good printer settings are project dependent, but can usually transfer reliably across simlar projects. And then I don't have to think much about the printer - it just does its thing.

I guess. Having just bought a Prusa Core One because of concerns about the direction Bambu is headed...

I regret it. Hands down. It is absolutely worse from a practical standpoint than the much older X1C I have, and the absolutely maddening part is that the "worse" bits are mostly software related.

You can hate on Bambu all you want (and frankly - a good chunk of it is well earned, but some is exaggerated or false) - but it feels like they use their products, and they care enough to fix the rough spots.

So while I like the ideals of Prusa... I can't say I'm super impressed with their latest offerings. Bambu's ecosystem is justly WILDLY better. The slicer is less annoying, the printer is more consistent, the monitoring tools are better, and most importantly - when I hit print, it just fucking does it.

I've had the Core One for less than 3 months, and I'm already into the double digits for number times I hit print and I come back 5 hours later to find.... it hasn't even damn well started the job. Instead...

"nozzle wipe failed. Retry?"

"different filament is loaded. unload? Select No to start print" (side note - it's just fucking wrong here, the filament from the correct MMU slot IS loaded, I just did it manually at the printer because if I don't and I switch materials - the next print is a guaranteed failure. The MMU is a whole different clusterfuck of bad software design, cool 3d printed engineering, bad software design)

"Nozzle clean failed. Retry?"

"The bed appears to be unlevel. Perform leveling?"

"Bed heating disabled due to inactivity" (This one still stumps me, I hit print, and came back to this message - my guess is nozzle clean fail and this just dismissed the first one... but who knows).

"Nozzle wipe failed. Retry?"

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Basically - I am fucking tired of "Core One needs your attention!" popups on my phone. Especially for the stupid things like approving a nozzle clean retry, or re-leveling. I am also sick of wasted time thinking the machine is printing when it's not.

Right now, I would absolutely buy a Bambu over anything else in the market for FDM.

> So my big question, for someone who’s owned one a while: is the printer ever “done”?

The printer is never "done" :). But there are plenty check points where it's "pretty good".

For example, here is my rough timeline:

- I sourced the parts and built it. Took around 4 weekends.

- The initial tuning took a while (like a month). But this was very fun. I tried almost all the Slicers. I fixed constructions issues (square angle, deracking, belt tuning, ...). After this step, the machine becomes "good enough". I can print various parts in the house and I was satisfied with the quality.

- I started pushing for speed and redid many parts of the printer. I learned about various limitations (like Flow Rate is the real limit for speed). This phase last a long time for me (like a year). I ended up replacing like 75% of the printed parts with CNC parts. During this time, the printer is still online and printable.

- I didn't modded the printer much after that. I found my sweet spot between speed / quality. I want to mod it with a 120W Hot End heater to increase the Flow Rate (already bought it), but it's not quite a necessary thing. It's more for fun. The tinkering goes on as long as you feel it's fun. But I wouldn't say you _need_ to tinker to _keep_ it working.

> Is there a point after which it “just works”? Or is it always going to be more like “it’s great! I just need to tweak the blah blah setting every time and retighten the frobnitz every 3 prints, no big deal really!”

After the first tuning phase, the Voron was "just works" for me. Or at least, if there was any issue, I could immediately tell what went wrong. And no retightening needed so far except one time the printed feet cracked (that was the reason I switched to CNC aluminum parts).

Edit: I built a large Voron (350mm), and it is really _heavy_ (almost full metal in my case). That's why the printed feet cracked. Beside that, maintenance is almost zero. I don't even wash the spring steel bed. Just click print and walk away.