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Firmware 3.4.1-RC1 for Original Prusa i3 MK3  

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Jakub Dolezal
(@jakub-dolezal)
Utenti Admin
Firmware 3.4.1-RC1 for Original Prusa i3 MK3

THE FINAL VERSION 3.4.1 is out: https://shop.prusa3d.com/forum/general-discussion-announcements-and-releases-f61/firmware-3-4-1-final-for-original-prusa-i3-mk3-t24967.html

Hi guys,
new firmware 3.4.1 is out! Note we are currently in release candidate stage, this build is for experienced users 😎

What is new?
- Stealth mode fixed
- "The filament sensor response is poor, disable it?" temporarily disabled
- Bug fixes

Stealth mode fixed
This issue manifests itself as slow Z-axis movements. This was caused by a bug in storing custom values to EEPROM (M500 and M501 G-codes). These two G-codes were updated to avoid a similar issue in the future.

"The filament sensor response is poor, disable it?" temporarily disabled
This was a new feature introduced with filament sensor engine 2.0. Unfortunately, this feature seems to be too sensitive and unreliable so we disabled it for now and we are working on the improved version of it.

Bug fixes
- Filament runout detection bug #1154 fixed
- Stealth mode bug #1152 fixed
- Statistics during active print bug #1151 fixed
- OctoPrint "Printer reset detected" warning #1184 issue fixed

Supported printers:
Original Prusa i3 MK3
Original Prusa i3 MK3 Multi Material 2.0
Original Prusa i3 MK2.5

Download link:
https://github.com/prusa3d/Prusa-Firmware/releases/tag/v3.4.1-RC1

Previous releases:
This is an initial release from the 3.4.1 branch

Firmware flashing guide:
http://manual.prusa3d.com/Guide/Upgrading+firmware+v1.2/66?lang=en
Note: Use the latest Slic3r PE 1.41.0 to flash the MK3 MMU2

Please report any bug here:
https://github.com/prusa3d/Prusa-Firmware/issues

As always, we wish you happy printing and look forward to your feedback!

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Postato : 29/09/2018 9:49 pm
doa
 doa
(@doa)
Estimable Member
Re: Firmware 3.4.1-RC1 for Original Prusa i3 MK3

how far is 3.4.1-RC1 from last version of 3.3 ? seems to me you have disabled new features of 3.4.0 and fixed what was broken from 3.3.x

what about allowing your valued customers to have an option: Allow Filament sensor always except when printing?
that would be filament sensor helping loading filament but not ruining the print because of it fails what it's supposed to do

Postato : 01/10/2018 7:28 pm
Pathogen
(@pathogen)
Estimable Member
Re: Firmware 3.4.1-RC1 for Original Prusa i3 MK3


how far is 3.4.1-RC1 from last version of 3.3 ? seems to me you have disabled new features of 3.4.0 and fixed what was broken from 3.3.x

what about allowing your valued customers to have an option: Allow Filament sensor always except when printing?
that would be filament sensor helping loading filament but not ruining the print because of it fails what it's supposed to do

Give this man a cigar!

Postato : 02/10/2018 6:04 am
CybrSage
(@cybrsage)
Honorable Member
Re: Firmware 3.4.1-RC1 for Original Prusa i3 MK3


how far is 3.4.1-RC1 from last version of 3.3 ? seems to me you have disabled new features of 3.4.0 and fixed what was broken from 3.3.x

what about allowing your valued customers to have an option: Allow Filament sensor always except when printing?
that would be filament sensor helping loading filament but not ruining the print because of it fails what it's supposed to do

It is easy to load without the sensor. My main reason for wanting the sensor is run out. When I run out of filament, I do not want to have to trash a print.

Postato : 02/10/2018 9:52 pm
doa
 doa
(@doa)
Estimable Member
Re: Firmware 3.4.1-RC1 for Original Prusa i3 MK3


It is easy to load without the sensor. My main reason for wanting the sensor is run out. When I run out of filament, I do not want to have to trash a print.

For me it’s easy to watch the print so that I don’t run off the filament.
FilmentSensor on MK3 is commercial advertisement that does not serve it’s purpose. I bet it sells good though, same like power cut detection. But wait, it’s 2018 and I didn’t have a power cut for 7 years now! Whoops

Postato : 02/10/2018 10:04 pm
CybrSage
(@cybrsage)
Honorable Member
Re: Firmware 3.4.1-RC1 for Original Prusa i3 MK3



Well, it’s easy for you. For me it’s easy to watch the print sp that I don’t run off the filament

I have no problem with adding a choice. More choices can be better, and in this case it would be. 🙂

Postato : 02/10/2018 10:05 pm
doa
 doa
(@doa)
Estimable Member
Re: Firmware 3.4.1-RC1 for Original Prusa i3 MK3

Yeah exactly, “adding” a choice. You would use that feature and it won’t ruin my prints 😁

Postato : 02/10/2018 10:10 pm
Tiago
(@tiago)
Reputable Member
Re: Firmware 3.4.1-RC1 for Original Prusa i3 MK3

Filament Sensor still need tweaking - On firmware

I still have fake positives, as simple as Solid Red ABS, in the middle of the print. And sensor is new, no dust,
That can be ok if they change the way firmware react

Suggestion:
Instead of click to unload what about:

"Runout detected, please take action:
1. Unload filament
2. Skip & continue
3. Disable sensor & continue"

This makes much more sense instead of force us to unload and load again the same filament wasting time. This will not hurt anyone who have a sensor that work 100% of the times because you still need to click ok and thats the first option anyway 🙂 Such a simple design that should be present from start.

Postato : 03/10/2018 3:19 am
Jakub Dolezal
(@jakub-dolezal)
Utenti Admin
Topic starter answered:
Re: Firmware 3.4.1-RC1 for Original Prusa i3 MK3

Hi guys,
thanks for the feedback. I will talk to our firmware dev about your suggestions 😉 We are currently working on the sensor firmware.

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Postato : 03/10/2018 1:26 pm
CybrSage
(@cybrsage)
Honorable Member
Re: Firmware 3.4.1-RC1 for Original Prusa i3 MK3

Looks like it went live, you can download 3.4.1 on the main downloads page now.

Postato : 04/10/2018 9:42 pm
Jakub Dolezal
(@jakub-dolezal)
Utenti Admin
Topic starter answered:
Re: Firmware 3.4.1-RC1 for Original Prusa i3 MK3

THE FINAL VERSION 3.4.1 is out: https://shop.prusa3d.com/forum/general-discussion-announcements-and-releases-f61/firmware-3-4-1-final-for-original-prusa-i3-mk3-t24967.html

Assembly manuals

/ Knowledge Base
The guy behind Prusa assembly manuals...

Postato : 05/10/2018 11:36 am
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