Firmware 3.9.0-RC1 for Original Prusa i3 MK3S & MK3  

RE: Firmware 3.9.0-RC1 for Original Prusa i3 MK3S & MK3

RC3 has been released - I'm sure we'll see a forum post shortly. 

https://github.com/prusa3d/Prusa-Firmware/releases

RE: Firmware 3.9.0-RC1 for Original Prusa i3 MK3S & MK3

I have a pair of MK3S's running 24/7 for at least the next few weeks on identical prints - I'll update one and run an A/B.

RE: Firmware 3.9.0-RC1 for Original Prusa i3 MK3S & MK3

I have a couple profiles that I calibrated LA1.5 using the Marlin calibration pattern on 3.9.0-RC1. Should I redo the calibration after I upgrade to 3.9.0-RC3?

RE: Firmware 3.9.0-RC1 for Original Prusa i3 MK3S & MK3

Posted by: @sembazuru

I have a couple profiles that I calibrated LA1.5 using the Marlin calibration pattern on 3.9.0-RC1. Should I redo the calibration after I upgrade to 3.9.0-RC3?

I don't believe the meaning of the value changed. Just some of the behaviour in specific circumstances, so you should be good to go.

RE: Firmware 3.9.0-RC1 for Original Prusa i3 MK3S & MK3

Posted by: @vintagepc

Posted by: @sembazuru

I have a couple profiles that I calibrated LA1.5 using the Marlin calibration pattern on 3.9.0-RC1. Should I redo the calibration after I upgrade to 3.9.0-RC3?

I don't believe the meaning of the value changed. Just some of the behaviour in specific circumstances, so you should be good to go.

My concern is because I calibrated based on RC1's behaviour and RC3 is claiming new behavior. I might just do it anyway on one of my filaments to see if I get a different number. (For all I know the calibration pattern doesn't use those "specific circumstances", but then maybe it does?) Need to wait for the current batch of face mask parts to finish though...

RE: Firmware 3.9.0-RC1 for Original Prusa i3 MK3S & MK3

I have some problems with my motherboard 13a using MMU2s. 

Problem:

 

- However, in this flowchart for my motherboard 13a the situation freezes FINDA = 1

- Printing cannot be resumed and you may have missed days of work as a result.

 

Possible causes:

 

- I believe that motherboard does not support multiprocessing (thread).

- Motherboard overheating.

- Problems with the absence of good programming practices and software engineering.

 

2) How update 3.9 is behaving.