Prusa3D Forum - Recent Topics

Prusa supplied filament profile accuracy.

Robin_13 — Sat, 18 Apr 2026 04:48:35 +0000

Trying to help a friend with a different filament. Prusa supplies a profile for the filament in their configuration. Prints with it fail. Temperature is much lower than temp tower test. Doesn't stick to the bed. Splits part way through printing.

Spectrum HT 100 PETG is the filament.

How much testing and confirmation of the suggested filament does Prusa actually do, if any?

What's your preferred method of 3D model assembly instructions?

shrap — Sat, 18 Apr 2026 02:33:54 +0000

I am working on a new project, and it's going to be the most complex I have done so far.

If/when I post the model I am debating how to post the assembly instructions.

What do you guys prefer when building for the first time? Pictures? PDF's? Videos? Or does it even matter.

I'm not too keen on video... unless it's completely exported from Fusion. I'm not sure but I guess Printables can upload an instruction sheet pdf file?

I've done text, I've done different formats of pictures... I need to lock down a standard going forward, I guess. I don't know the first thing about youtube or whatever, so videos are kinda... eh.

Eigenes Prusa Touch UI – alles läuft, außer Temperatursteuerung über PrusaLink 😅

Damaskus89 — Fri, 17 Apr 2026 23:05:08 +0000

Hi zusammen,

ich bastle aktuell an einer eigenen Touch-UI für meinen Prusa (läuft über PrusaLink api auf einem Pi mit 800x480 Display – quasi eine Art eigene OctoDash-Alternative).

Ziel:Eine einfache, übersichtliche Oberfläche für direktes Bedienen am Drucker(PI) (Status, Steuerung, Kamera, Vorschau etc.) Steuerung möglich wenn man nicht direkt beim Drucker "steht".

Aktueller Stand:

Eigene UI (React-basiert)

Kommunikation über die PrusaLink API

Tabs für:

Status

Steuerung

Vorschau

Kamera

Anzeige von:

Druckstatus

Fortschritt

Restzeit

Z-Höhe

Temperaturen

Live-Kamera + Snapshot Funktion

Ein paar Eindrücke (siehe Bilder).

Problem / Frage zur PrusaLink API (Temperatursteuerung):

Ich stoße aktuell auf Probleme bei der Steuerung der Temperaturen über die API.

Auslesen funktioniert problemlos, z. B.:

"temp_bed": 60.1, "target_bed": 60.0, "temp_nozzle": 220.0, "target_nozzle": 220.0

Aber:

Setzen von neuen Zieltemperaturen scheint entweder nicht zu funktionieren oder wird nicht übernommen

Unklar, ob:

das Feature in PrusaLink überhaupt vollständig unterstützt wird

bestimmte Endpoints fehlen / anders funktionieren

oder ob zusätzliche Auth / Header / Methoden nötig sind

Meine Fragen:

Ist das Setzen von Nozzle- und Bett-Temperaturen über die PrusaLink API aktuell möglich?

Falls ja: Welche Endpoints / Methoden sind dafür vorgesehen?

Gibt es Einschränkungen (z. B. nur während eines laufenden Drucks / nur im Idle)?

Hat jemand ggf. ein funktionierendes Beispiel?

Ich würde die UI gerne komplett über PrusaLink steuern (ohne Umweg über OctoPrint), aber gerade die Temperatursteuerung ist aktuell mein größter Blocker.

Danke euch! 🙌

Extrusion multiplier seems to be ignored

abenn — Fri, 17 Apr 2026 19:05:42 +0000

I've found by trial-and-error that a flow rate of 60% is working best with my Prusa CoreOne+ using ColorFab LW-PLA filament, but when I set Extrusion multiplier in the PrusaSlicer Filaments menu tab to 0.6 it usually seems to be ignored, so I have to set it to 0.6 in my CoreOne's screen after starting the print. Even then, if I set it too early, such as when the nozzle temperature is still ramping up, it reverts back to 1 and I have to quickly re-set it to 0.6 while the brim is printing.

Any idea what I might be doing wrong when slicing? All other parameters I set in PrusaSlicer, such as nozzle temperature, are okay.

Very occasionally: no print whatsoever (SL1S)

Rob Meades — Fri, 17 Apr 2026 14:29:54 +0000

I've had this happen twice now with my SL1S (upgraded from an SL1 a few months ago): everything appears normal but, when the print completes, there is no print. Nothing whatsoever has solidified, either on the print plate or in the reservoir or on the film, absolutely nothing, I have a reservoir of liquid resin and a damp print plate, that is it. It is like as if the UV light never came on; no alarms, nothing untoward, just no solidified resin. Run the print again, no movement of anything, and the print is fine and dandy.

According to the system log I have done 282 prints (I'm assuming the count is since upgrading) and this has happened twice. When it happened today it was on an occasion when I had not quite put enough resin in the reservoir: I had cancelled the print job and then pressed reprint after filling the reservoir up properly. I can't say whether the previous occasion when this happened was under the same set of circumstances, since this occurs relatively rarely (I was just finishing off a bottle).

It feels to me like a FW bug (I am on FW 1.8.0).

Has anyone else experienced this?