#prusa

2026-01-29

There is in fact no calibration procedure for the side filament sensor. You can’t fail QA at the factory if you just don’t Q the A!

It might just be an issue with a magnet not being pushed in far enough, but regardless it’s going to require complete removal of the side panel. Love to get all these basic-ass printer assembly 101 mistakes.

I almost don’t want to bother because the INDX setup obviously doesn’t use this sensor at all, but that would leave me with no way of doing filament runout properly.

I did fix the z-axis binding, I think. I printed the alignment tools but I think it was really just the screws being too tight. Tighten the screws, but not Too Tight!

#3DPrinting #Prusa #CoreOne

2026-01-29

Hier im #Fediverse sind ja einige Enthusiast*innen für 3D Druck unterwegs (z.B mit #Prusa etc.)

#CarlRoth bietet jetzt auch #BioPrinting an.

D.h wenn eure Organe kaputt sind, könnt ihr sie einfach nachdrucken lassen. Wie geil ist das denn? 🤓😃

carlroth.com/de/de/Bioprinting

Richard "RichiH" HartmannRichiH@chaos.social
2026-01-28

And finally, I'll trade you something nice for the #3dprinting crowd at #FOSDEM. #Prusa didn't get a booth because life happened to Pavel (not on Mastodon), but there will be a Core One with high temp nozzle at the #Grafana booth. I did ask for PEKK-CF and they should be able to bring a spool. That would be fun. I touched it a few times but never printed with it.

Edit: changed PEEK to PEKK-CF, thanks @fribbledom

Dark*:*Star :antifa:2ndStar@astronomy.social
2026-01-28

Ich verbringe meine Zeit gerade damit, was schönes zu tun 💖

#Prusa #HappyPrinting

Auf einen Tisch sind verschiedene Bauteile zu erkennen, die ich brauche um die MMU für den 3D Drucker zusammenzubauen. Auch steht da mein Tablet, wo ich mir von der Webseite die Anleitung dazu ansehen kann. Der Drucker Prusa Core One steht neben mir auf dem Boden.Ein weiterer Prusa Core One mit MMU steht schon zusammengebaut hinter mir auf einem Tisch. Daneben stehen verschieden farbige Filamente.
2026-01-28

The print was going fine until the filament ran out. The filament runout process was completely botched, because it turns out the side filament sensor wasn’t working. I couldn't get the PTFE tube out of the hotend so I just had to cancel the print and push out the leftover filament the old fashioned way.

After I simmered down and thought about it, I realized I definitely did the sensor calibration incorrectly because it did not click for me at the time that there are two filament sensors. So, easy fix on this, hopefully. The filament sensor assembly looks very fussy.

#Prusa #CoreOne #3DPrinting

2026-01-27

#Prusa says that you can skip certain calibration steps if you buy an assembled printer.

But Prusa Connect was not made aware of that and complains constantly if you don’t do it.

#3DPrinting

2026-01-27

So, the #Prusa #CoreOne seems to be printing fine. I am definitely getting z-axis binding and there is apparently a procedure for rectifying that.

Not sure if they just didn't do it at the factory or the bed flopping around in transit without one of its mounts attached messed it up. It technically passes the z-axis test just fine, but sounds bad in use.

#3DPrinting

2026-01-27
Tog Hackerspacetog@mastodon.ie
2026-01-27

Our first Prusa arrived back in 2018, and the Mk3 is still going strong. 💪
A member spent hours giving it a proper overhaul and it’s back printing lovely parts again — a bit slower than newer machines, but we still love it.

Here it is printing a red Benchy using filament from RS. 🚤🧵
#3DPrinting #Prusa #PrusaMK3 #Benchy #Makerspace #TOGHackerspace

Original Prusa i3 Mk3 3D printer on a workbench with a red filament spool mounted on top; the filament feeds into the extruder above the print bed.Close-up of a small red 3D-printed Benchy boat on a tabletop, showing the cabin and deck details.
Fnord Prefectfnord@chaos.social
2026-01-26

Ich habe hier eine Kiste mit den Resten die übrig geblieben sind, als ich meinen #prusa MK4S auf nen Core One upgegraded habe. Will das noch jemand haben? Eigentlich zu schade zum Wegwerfen (insb. der Rahmen und Teile der X-Achse), aber hier rumstehen kann's auch nicht für immer. (In der Nähe von Aachen)

2026-01-26

I had a voucher expiring.
Now I have a new mouse pad :-)

#Prusa

An image of a mousepad that looks just like a prusa heated printbed, on the pad there is a black Logitech Mouse an you can see part of a thinkpad in the background
2026-01-25

Installing the bed properly requires that you remove all the trapezoidal nuts (why are they even called that?) and drop the bed to the floor.

Oh, but you have to make sure the rear bed spacer is underneath the bed frame and lined up properly. This is a huge pain in the ass when the walls of the enclosure are installed. Eventually I installed screws through the bed frame into the spacer, dropped it down, then took them out and installed the trapezoidal nut.

It passes z-axis calibration now, though it did make some bad noises. Absolutely silent in normal operation though. So I'll call it good...

Pro tip for the load cell calibration: the printer says to "tap" on the nozzle, but actually you need to exert some upward force for it to register anything.

#Prusa #3DPrinting

2026-01-25

#Prusa #CoreOne continued: it’s been really cold so I let the printer sit overnight. Also I was rather annoyed yesterday.

Step one: remove protective plastic. They installed the rivets on top of the plastic, which means I’m left with these little shreds of plastic film. Also a non-zero chance of pulling the rivets out. The front panel has no film at all and is covered in dust and handprints. Not sure why they wouldn’t install the panels properly and then put plastic on top of everything, like I’ve definitely gotten from a Chinese company.

Step two: plug in the power cable. Just like the MK4S, the outlet does not offer a confident connection. Routing is just weird.

Step three: install build plate.

The whole heat bed fucking wobbled at this point. The left mount is very loose, the rear mount is a little loose, and the right mount has no screws at all. There are no spares included, so this is definitely a showstopper if you don’t have any. M3x18 if you’re asking.

I also looked at the heat bed wiring cover at this point and it looks funny… either a screw is missing or is completely mangled. Nope, it’s a torx head, which is probably sensible.

Why is American manufacturing dead? It offers incredible quality!

#3DPrinting

Top corner of the Prusa Core One. The metal shows signs of wear from rubbing. There are rivets holding a plastic panel on, which have bits of plastic film trapped in them.The power supply cable inlet. The routing is rather tight.The front right heat bed mount. The trapezoidal nut that is meant to be attached to it absolutely is not.A top down shot of the heat bed wiring cover. One of the screws looks very strange.
2026-01-24

So I spent $xxxx on an "assembled" #Prusa #CoreOne and... the xLCD assembly is missing screws and square nuts. Can you run it like this, yes, but you probably shouldn't.

If it weren't for the fact that this is my 3rd Prusa and I have just enough spare nuts lying around, I'd be dead in the water until at least Wednesday, and that's assuming the local subsidiary addresses my issue and not Prusa in Prague.

As always the Prusa parts have optimistic tolerances so there was some light hammering and inappropriate use of screwdriver bits. But the xLCD is attached now.

Also, I get that these are pseudo-industrial machines, but if you got something new that looked like this from Amazon you'd get refunded. Wear marks all over the place, dust, and some of the paint on the door handle is coming off. On the plus side, no China factory smell.

#3DPrinting

Mike Harrisonmeuon@fosstodon.org
2026-01-23

Hoping the power stays steady for a couple of days. Might be a good trick in a wintery mix. The lab is busy. All 3 at work. I loosly Bubble Wrapped the XL as a "redneck" enclosure to help with drafts causing layer seperation on larger prints. Working well for over a week. #Prusa #prusaxl

Pic of my grundy garage shop with 3 Prusa Printers printing.

Forget IPA for SLA print washing, Prusament Resin Cleaner is better in every way

We’re launching a new safe washing solution for SLA prints. The Prusament Resin Cleaner DPM (Dipropylene Glycol Methyl Ether) is an effective organic solvent with low flammability and the lowest possible toxicity. Because of its high safety profile, we can ship...
The post Forget IPA …
#prusa #3DPrinting
blog.prusa3d.com/forget-ipa-fo

rostundradrostundrad
2026-01-22

@rapha3l @minkorrekt läuft auch ohne Cloud, gibt es auf Wunsch sogar ohne Netzwerkmodul. Und der slicer findet sich in den normalen Debian-Quellen.

2026-01-22

Because of the impending threat of additional EU tariffs, I have gone and done the thing and ordered a Core One. I may even have a functioning INDX system in 6-12 months (lol, one can dream).

I see the AMS 2 is back ordered for a month and used prices are… favorable. Do I dump all my Bambu stuff now or sit on it until I actually have INDX in hand? I use the actual multi-material functionality almost never.

#3DPrinting #Prusa #BambuLab

Daniel Buzzodanbz
2026-01-20

modular parametric stacking locking toolbox - printed in gold PLA on mk3s

gold 3d printed toolbox closeup
Daniel Buzzodanbz
2026-01-20

made up and printed myself a gold locking stacking rugged modular toolbox on the ...

for for hunting and storing pebbles, seashells, small handfulls of sand and important things like that

3d printed toolbox in gold filament

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