Prusa3D Forum - Recent Topics

Ho do I remove the bowden tube from the extruder?

Phil — Sun, 26 Apr 2026 01:44:19 +0000

I need to remove the tube from the extruder to load TPU. How does the coupler work? The black ring does not push in like others I've used. It does spin, but it does not unscrew. What is the magic word? Thanks.

Inland Transparent PETG+

shrap — Sun, 26 Apr 2026 00:37:25 +0000

I bought a few rolls of Transparent PETG+ from Inland for fun. I am doing some test prints and my palette swatches are coming out with these weird bubbles on the surface. That's a thin part, so that might be part of it.

I adjusted the settings for the filament diameter. My temp tower shows that the default 250C is best. Is it because of the infill? I used the standard 15%. The top layer is smooth, but that recessed flat layer is bubbly. I had it do this on at least three different color rolls so far.

swatch used: https://www.thingiverse.com/thing:7169148

Core One with INDX height?

Jason Coon — Sat, 25 Apr 2026 15:46:22 +0000

Anyone know the additional height of the cover? I can't seem to find it anywhere. I just ordered my INDX conversion kit and I'm wondering if I'll need to move the shelf I have over my Core One.

Thanks!

Upgrading the 3.5 with second-hand Core 1 extruder?

Si1verEag1e — Sat, 25 Apr 2026 13:46:53 +0000

I just ordered the INDX for my Core One (And I'm really looking forward to it), but I realized that for the upgrade I'll have to get rid of the entire original extruder, including a collection of nozzles...
I used to have a Mk3.5 before that i gifted to an old friend and since the C1 extruder doesn't look to be that different from the Mk4, I'm toying with an idea to give the C1 extruder to the guy as well and let him build basically a 3.9

Anyone having a similar idea? Is there an expert that had the Mk4 and C1 extruder disassembled side by side and compared them?

Z spindles POM nuts backlash

Peter Barends — Sat, 25 Apr 2026 13:22:42 +0000

During upgrade to coreone plus i noticed that the axial backlash between the POM nut and the spindle is 0.15 mm.This for all three Z spindles. Is this normal? With my Prusa MK 3 the Z backlash is zero.

Feature: Add camera feed to queue view of printers page

cmpickle — Sat, 25 Apr 2026 12:39:40 +0000

Currently only the table view of the printers page allows you to see the camera feed. I much prefer the queue view where I can see the queues for all my printers but I also want to be able to see what is currently happening with the printers via their camera updates. Unfortunately each of these features are locked to separate views currently. Please add the camera feed to the the queue view.

MK4(s) to core one with INDX conversion

Joerideman — Sat, 25 Apr 2026 11:08:56 +0000

Dear Prusa3d and cocreators,

Now that indx is around the corner I want to be use it. Preferably without wasting parts :).

Since we don't use the nextruder anymore I considered skipping the MK4 to MK4s conversion and go straight to INDX.

There is a tutorial for converting the MK4 to core one. See the URL at the bottom.

Is there anything in the conversion kit to core one that is also no longer needed if I go for INDX?

At Prusa3d can we get a conversion kit specifically for going for indx from MK4/s?

https://www.reddit.com/r/prusa3d/comments/1kco6xf/tutorial_upgrade_from_mk4_non_s_to_core_one/?share_id=YRAy-Jh7XFGHbqWSvnucP&utm_content=2&utm_medium=ios_app&utm_name=ioscss&utm_source=share&utm_term=1

Hight of hood for index

Voddster — Sat, 25 Apr 2026 07:29:37 +0000

Hi everybody,

I was wondering if there is any info on the hight of the hood for the Index Toolchanger. Because I don‘t have much space above my printer!

Regads,

Jörg