RE: 6.4.0-RC Firmware for Prusa CORE One
Here we are getting really into the wishful thinking 😂 give me a stable release first with all the bugs ironed out and later sell me the S with INDX... 😁
RE:
I'm pretty sure 6.4.0 will be released on Nov 18. The reason it's not being released earlier is that it most likely contains references to the anticipated announcement of the INDX for Core One and (possibly) a Core One S (or something similar).
But wouldn't it be quite unusual for Prusa to have firmware for a new product ready on the day they announce the product? Firmware for the Core One and Core One L was only published when the first units were physically on their way to customers. And Prusa have released firmware for other printers in the months preceding the shipment, which apparently did not include any spoilers about the new products.
If I recall Bondtech's blog post correctly, they are targeting end of Q1 2026 for the INDX. Wishful Thinking Dept.: Maybe Prusa, while unable to get exclusivity on the INDX, have negotiated a headstart of a month or two for the Core One variants?
My point (I suppose) is that there is probably going to be an enhanced Core One announced (not necessarily INDX) and changes for that are already baked into the 6.4.0 firmware. The Core One L changes where already in place (in a separate 6.5.x branch) back in May which is why they didn't update the commits in the public repo until after the L was announced and those changes are now merged into master. It's clear Prusa maintain 2 git repos. An internal one and the public one to maintain appearances that they are still open-source. The last firmware drop for 6.4.0-RC was Sep 18. The only reason I can think of as to why there hasn't been RC1, RC2 drops is that it contains spoilers. Or they have 1 developer assigned putting in 80hr weeks... 🤯
RE: 6.4.0-RC Firmware for Prusa CORE One
I'm pretty sure 6.4.0 will be released on Nov 18. The reason it's not being released earlier is that it most likely contains references to the anticipated announcement of the INDX for Core One and (possibly) a Core One S (or something similar).
That said, it was odd that they jumped from alpha to RC without a series of beta's in-between.
Looks like you may be right. I've not used my Core One for a while and when I opened slicer there was a configuration update - the "about" said notification of firmware update amongst other irrelevant filament things.
RE: 6.4.0-RC Firmware for Prusa CORE One
So, by general consesus we should have a firmware release tomorrow? ;-)Or is there any special Prusa event planned within the Formnext duration that would trigger it? I guess, it is fair opening and boooom (release time), right?
RE: 6.4.0-RC Firmware for Prusa CORE One
So, by general consesus we should have a firmware release tomorrow? ;-)Or is there any special Prusa event planned within the Formnext duration that would trigger it? I guess, it is fair opening and boooom (release time), right?
Don't hold your breath... There is a new comment on Github today by a long-term contributor to the firmware, who seems to explain why testing 6.4.0 takes so much longer than releasing 6.5.1 for the Core One L:
https://github.com/prusa3d/Prusa-Firmware-Buddy/issues/4582#issuecomment-3540285151
RE: 6.4.0-RC Firmware for Prusa CORE One
Yes, that's why I was puzzled that prusa introduced yet another product line to support. They need to hire some more testing resources or limit the number of product-lines.
RE: 6.4.0-RC Firmware for Prusa CORE One
The situation is obscene here and on GitHub. 99% of the users probably don't care about a L release and want their printer to run (in some cases for the first time properly). Teasing features and not delivering is the worst you can do. Especially, releasing the same printer again with a new specific firmware. Sorry to be not in the best mood and not being polite.
RE: 6.4.0-RC Firmware for Prusa CORE One
The situation is obscene here and on GitHub. 99% of the users probably don't care about a L release and want their printer to run (in some cases for the first time properly). Teasing features and not delivering is the worst you can do. Especially, releasing the same printer again with a new specific firmware. Sorry to be not in the best mood and not being polite.
I am pretty sure that this was not the plan. They probably rushed 6.4.0 RC because they wanted to get 6.4.0 out of the door and then add support for the Core One L to that. But learned quickly that the RC was nowhere near ready for a release to the non-Core-One printers -- so they had to pull the brakes and release another dedicated version as a stop-gap measure.
RE: 6.4.0-RC Firmware for Prusa CORE One
It would have been much better for them to call it beta instead. RC (release candidate) implies that it is, well.. ready for release with possibly minor bugs but no blockers.
RE: 6.4.0-RC Firmware for Prusa CORE One
Based on all the feedback here, Alpha sounds even more appropriate lol
It would have been much better for them to call it beta instead. RC (release candidate) implies that it is, well.. ready for release with possibly minor bugs but no blockers.
RE: 6.4.0-RC Firmware for Prusa CORE One
It would have been much better for them to call it beta instead. RC (release candidate) implies that it is, well.. ready for release with possibly minor bugs but no blockers.
I guess they thought (hoped? wished?) that 6.4.0 was in that state...
Well, either that or they needed it out there for publicity reasons. If I recall correctly, Joseph Prusa published a blog entry at the same time as the 6.4.0 RC publication, announcing that VFAs and proper belt tensioning were now fixed, and referring to the new firmware. Maybe they felt the need to try and put this matter to rest before it spoilt the reputation of the Core One -- and, by association, the coming Core One L.
RE: 6.4.0-RC Firmware for Prusa CORE One
For the 3 CORE Ones and 2 MK4s' under my control (more or less standard, no MMU) the RC been working just fine... Was only the XL where even the alpha shouldn't have been released (again my personal experience).
Based on all the feedback here, Alpha sounds even more appropriate lol
It would have been much better for them to call it beta instead. RC (release candidate) implies that it is, well.. ready for release with possibly minor bugs but no blockers.
RE:
It would have been much better for them to call it beta instead. RC (release candidate) implies that it is, well.. ready for release with possibly minor bugs but no blockers.
I guess they thought (hoped? wished?) that 6.4.0 was in that state...
Well, either that or they needed it out there for publicity reasons. If I recall correctly, Joseph Prusa published a blog entry at the same time as the 6.4.0 RC publication, announcing that VFAs and proper belt tensioning were now fixed, and referring to the new firmware. Maybe they felt the need to try and put this matter to rest before it spoilt the reputation of the Core One -- and, by association, the coming Core One L.
VFAs.... I did a print yesterday with 6.4.0-RC and black Polymaker PC which is pretty glossy. The VFA's are still very obvious even at different print speeds and profiles STANDARD, BALANCED etc. Fortunately I really don't care since these are functional parts. Just found it amusing. Showed the part to my wife and she said: "What are all these vertical lines doing there?
Back on point, it would have been in Prusa's best interest to just do weekly release builds with alpha-2025-09-18 etc with a changelog so we can see that progress is being made. Then when RC tag is created the only bugs I would expect are minor like spelling mistakes. Not tool heads violently crashing into the dock on the XL or the nozzle gouging trenches into your build plate etc.
RE: 6.4.0-RC Firmware for Prusa CORE One
So, by general consesus we should have a firmware release tomorrow? ;-)Or is there any special Prusa event planned within the Formnext duration that would trigger it? I guess, it is fair opening and boooom (release time), right?
Don't hold your breath... There is a new comment on Github today by a long-term contributor to the firmware, who seems to explain why testing 6.4.0 takes so much longer than releasing 6.5.1 for the Core One L:
https://github.com/prusa3d/Prusa-Firmware-Buddy/issues/4582#issuecomment-3540285151
The line by 3d-gussner
"The CoreOne L firmware had to be released with the launch. Testing one printer is quite easy and fast."
if true - why has it took so long for the Core One? Seems to have got abandoned around September sometime..
RE: 6.4.0-RC Firmware for Prusa CORE One
Why test it yourself when you can get your users to do it lol. Works for microsoft. I say that very tongue in cheek. I'm a software developer myself and I take testing pretty seriously. I think prusa has over-extended their testing resources to cover all these product-lines.
RE: 6.4.0-RC Firmware for Prusa CORE One
The line by 3d-gussner
"The CoreOne L firmware had to be released with the launch. Testing one printer is quite easy and fast."
if true - why has it took so long for the Core One? Seems to have got abandoned around September sometime..
But that's his point: 6.4.0 is not just "for one printer". It is meant to be the unified firmware for all Prusa FDM printers (maybe with the exception of the Core One L now that they have split it out). The RC version already seems to work pretty well on the Core One; it's the other printers, and most notably the XL, which have major problems.
RE: 6.4.0-RC Firmware for Prusa CORE One
Being a prusa fan myself, my main issue right now is feeling like you get penalized for being an early adopter. I have one of the first shipping XL 5 tool machines. That was a bit of a hot mess at the beginning but with firmware updates it's my most solid printer after the MK4S. That why I ordered 2 mk4s -> core one upgrade kits when they became available. After some self-induced issues initially with my first core one upgrade I've been proving out my core one before upgrading my second MK4S. Without significan mods the core one is not great with super soft(like below 92A) filaments. I'd love to see them make some hardware tweaks on their existing product line but it seems that's much less likely now with an additional mouth(product) for them to feed. I'm curious if the new tool head for the silicone printing my finally give as a much needed hardware update(maybe an S version) of the XL.
RE: 6.4.0-RC Firmware for Prusa CORE One
Ant that's were I think the strategy was wrong. The Core one and Core L are basically the same printers with the same issues. These should have been in one release. Putting the Core One into a group of... the Mini is included?... was sort of totally stupid. And if the rigorous testing included all former releases, well better rethink QA there as this lead to the issue
RE: 6.4.0-RC Firmware for Prusa CORE One
I noticed a peculiarity in my printer (firmware 6.4.0-RC). After installing new filament, it prompts for the type and heats up to purge. However, it doesn't stop heating immediately after the purge. I'm concerned that if the filament is constantly heated—in my case, it's PLA (215°C)—this will eventually lead to evaporation and failure. Could this be a bug? I disable it manually, but under certain circumstances, this could cause problems.
Another issue I noticed: if I turn off the RGB backlight while printing, it's impossible to turn it back on from the menu. I rebooted the printer, but it still wouldn't turn on.
RE: 6.4.0-RC Firmware for Prusa CORE One
The line by 3d-gussner
"The CoreOne L firmware had to be released with the launch. Testing one printer is quite easy and fast."
if true - why has it took so long for the Core One? Seems to have got abandoned around September sometime..
But that's his point: 6.4.0 is not just "for one printer". It is meant to be the unified firmware for all Prusa FDM printers (maybe with the exception of the Core One L now that they have split it out). The RC version already seems to work pretty well on the Core One; it's the other printers, and most notably the XL, which have major problems.
This is the release candidate for the upcoming firmware 6.4.0 for the Prusa CORE One, MK4S, MK4, MK3.9S and MK3.9.
According to blurb it goes on to say "Builds for XL, MINI, MK3.5S and MK3.5 are temporarily not included due to identified issues currently under investigation."
Confused? - I am!