Prusa3D Forum - Recent Topics

How to increase printer software limits Chamber Max Temp

AL — Sun, 19 Apr 2026 02:14:19 +0000

I have this chamber heater I made and the goal is to get to 65C chambe temperature. However, when ever the chamber themistory reaches 60C the printer puts up this message about excessive temperatures and turns on the chamber fans until it drops to 55C.

I suspect the printer would be completley fine at 65C, so for that reason I don't want this feature to activate until 70C. How would I even go about changing this? I don't see anything in printer settings, so I am assuming it would have to be deeper than that. I thought I would ask because atp I have no idea.

https://www.printables.com/model/1445294-air-manager-active-chamber-heater-and-filter-v05

Prusament Filament Pricing is Strange

hyiger — Sat, 18 Apr 2026 21:26:34 +0000

I needed to buy more PC Blend for my project and saw a 2kg spool and thought: "Perfect! this is the amount I need" but when I looked at the price it's $55/kg however a single 900g spool is $51/kg. Why is it $4/kg more to buy in bulk?

FINDA FILAM STUCK appears during print when PLA materials runs out... Help!

ニホコ — Sat, 18 Apr 2026 17:41:28 +0000

We're using a Core One with an MMU3 attachment and were in mid-print when the FINDA FILAM. STUCK error appeared.

We thought the MMU3 would automatically switched to a different filament when that happened. Currently, the Core One's screen only allows us to Retry. It does not allow us to access the settings to unload/load filament or do any troubleshooting on the machine without resetting the whole thing.

Here are the questions we have:

1. Why did the MMU3 not switch to the other filament?

2. Why can't you access the menu or have an option to manually switch filaments mid-print?

3. Is it possible/how do you resume the print if you shut down the machine and turn it back on?...This is what we're considering but haven't gone through with it yet.

initial_extruder

Joachim — Sat, 18 Apr 2026 16:17:02 +0000

If you insert {initial_extruder} in the filename the slicer is producing it starts counting with 0 (zero) for the first extruder. his should be 1 (one) because the mmu3 unit also has the extruder labeled 1 to 5 and not 0 to 4. Used slicer is version 2.9.4.

It is not really a bug but annoying 🤔

"Printing time" is really "time on this tab"

André — Sat, 18 Apr 2026 11:27:41 +0000

This time is "how long you watch this tab,"

(you need to click the screenshots, this forum does a lousy job.)

switch to any other, like "print history" , and back:

if you open this well into a print, and see printing time <1m ... you know something is wrong.

My objects are slicing weirdly

Mat — Sat, 18 Apr 2026 10:56:32 +0000

Hello

I designed a bunch of tags to label my filament on my reprack in autodesk fusion. They are multicolor, with the letters being a different color from the rest of the tags. The letters start at the surface and go to a depth of 0,8mm.

I placed them into prusaslicer to print. So far so good

But when i slice the tags, some of the letters get cut off, as if they were offset from the build plate, which they are not

Even weirder: when i cut off the tag on the bottom (within the slicer), to make sure it is flat and has full contact with the build plate, it still does not render the last two letters of "PETG"

Any Idea as to why that might be? Project file: tags

Temperature difference in bed

Martin Lenza — Sat, 18 Apr 2026 10:55:16 +0000

Hi, I've been having problems with warping and the entire print coming unglued. I thought it was due to moisture from the filament, so I dried it, but it's still the same. Then I decided to measure the bed temperature with a laser thermometer. The screen showed 70°C, but the laser thermometer read 51°C. I've tested it several times, and the difference is between 15°C and 20°C compared to the screen reading.Has anyone else experienced this? Or do you know of any way to fix it?

Thanks and regards.

Problems printing TPU

manhai — Sat, 18 Apr 2026 08:35:00 +0000

Hello

Since around one week, i try print stuff with tpu. Smaller objekts work very well but at larger objects it always messes up.

For this print i use a tpu from ellego.

For this print my parameters are:

Layer height from 0.15, maximum speed 80, maximum flowrate of 4mm3/s, retraction 0, temperature 230c. I also loosen the wheels.

But at previous trys i reduced the speed, flowrrate and increased the temperature.

I have no idea what i can do to solve the problem

Thanks for your help

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?