RE: 6.4.0-RC Firmware for Prusa CORE One
You guys have reaffirmed why I almost never install non GA builds of the firmware. I've built and run prusaslicer a few times, but I stay well clear of doing it for the fw.
For me the printer is a side-hobby so it's fun to live on the edge. If I were running a business, then of course I would stay away from a non-release firmware. At least Prusa allows downgrading back to the previous version. I have telescope control hardware where once you upgrade, you can't go back (easily).
- Bob Marley
RE: 6.4.0-RC Firmware for Prusa CORE One
You guys have reaffirmed why I almost never install non GA builds of the firmware. I've built and run prusaslicer a few times, but I stay well clear of doing it for the fw.
For me the printer is a side-hobby so it's fun to live on the edge. If I were running a business, then of course I would stay away from a non-release firmware. At least Prusa allows downgrading back to the previous version. I have telescope control hardware where once you upgrade, you can't go back (easily).
Words cant describe how much I hate this practice.
Apple, DJI, etc suck for this, but otherwise make great products.
RE: 6.4.0-RC Firmware for Prusa CORE One
It's a side hobby for me too. Though since I have three printers now(all prusa) you might be forgiven for thinking I use them for business purposes 🙂 I just like having stable things. I tend to jump at new firmware releases because historically they've solved issues for me. The XL is a prime example. I was one of the first ones to preorder and it's taken many firmware updates to make it pretty reliable. Both my coreone and MK4s started as MK3S'es lol it's been a journey. I'm still out on whether I like the core one or not.
RE: 6.4.0-RC Firmware for Prusa CORE One
I just like having stable things.
I'm like... "Oooh, shiny"
I have my eye on the Snapmaker U1. Once it's been out in the wild for 6 months, it lives up to the hype and the Core One INDX turns out to be vaporware then the Core One is going up for sale.
- Bob Marley
RE: 6.4.0-RC Firmware for Prusa CORE One
regarding the belt tuning assistant, wouldn't it be easier to just tune to the strobes, until you get max resonance for the belts at their frequencies?
RE: 6.4.0-RC Firmware for Prusa CORE One
It seems the sensor readings in 6.4.0-RC for MCU and Board (Info/Sensor info) are broken, showing 0.0 permanently.
This might be related to a BSOD, below, that only happens in long-running print jobs (even if an otherwise successful print job was just slowed down):
Possible that it's overheating but a warning is never given, as sensor data looks "frosty"...
RE: 6.4.0-RC Firmware for Prusa CORE One
Was reported here: MCU/Board temperature sensor not updating looks like the fix will go into the next release
- Bob Marley
RE: 6.4.0-RC Firmware for Prusa CORE One
I just had a "Red Screen Of Death": Thermal Runaway. I first pulled the plug then thought about screenshots but I suspect there aren't too many candidates in the code (told me to check the temperature sensor).
There was a relatively large upload (that is, slicing and upload each took a few minutes) ongoing during while preheating. Prior to that, I had aborted the same large job during the first layer.
Taking a random guess, CPU bogged down by ETH, maybe?
Files can be provided on request but the project is > 50 MB.
Nozzle and printhead seem to be working fine but today it's giving me no joy: the next print attempt halted because gcode loading speed from USB was insuffient (?!). This doesn't bode well, it needs to run overnight without babysitting, in particular with the MMU. And it's the stick that came with the kit, many gigabytes free.
I decided to restart. Next it's telling me homing calibration is required (did that a few hours earlier). Completed with much banging but no incidents.
Running again, fingers crossed...
RE: 6.4.0-RC Firmware for Prusa CORE One
Just a thought regarding the BSOD on first start. Are your x and y-motors grounded ? Maybe with non-groundet motors, after a reset thats not a problem anymore ??
RE: 6.4.0-RC Firmware for Prusa CORE One
Just a thought regarding the BSOD on first start. Are your x and y-motors grounded ? Maybe with non-groundet motors, after a reset thats not a problem anymore ??
Is this a thing? Never had a grounded stepper motor on 3D printers. What's the reason to ground the stepper? Static charges?
RE:
Yes, some had issues midprint on longer prints. And "grounding" the x and y steppers solved that. Thers is a longer thread about that somerwhere here.
RE: 6.4.0-RC Firmware for Prusa CORE One
Thanks. Looks like this printer has "improvement potential" with regard to grounding, if it crashes when the heatbed gets ESD-zapped. Fortunately, a low-tech fix.
RE: 6.4.0-RC Firmware for Prusa CORE One
Just a thought regarding the BSOD on first start. Are your x and y-motors grounded ? Maybe with non-groundet motors, after a reset thats not a problem anymore ??
Is this a thing? Never had a grounded stepper motor on 3D printers. What's the reason to ground the stepper? Static charges?
On a X=Y movement, only the X motor is active. The working theory is static builds up on the x-motor belt. It runs close to the door sensor switch. Perhaps it is discharging through the door sensor which causes the crash. Grounding the x-motor housing is sufficient to mitigate this.
- Bob Marley
RE: 6.4.0-RC Firmware for Prusa CORE One
Just a thought regarding the BSOD on first start. Are your x and y-motors grounded ? Maybe with non-groundet motors, after a reset thats not a problem anymore ??
While the static issues upon long moves have been confirmed by multiple users, I can't see how they would be related to the blue screen fault. That one happens upon powering up the printer, after it has been sitting idle for a long time -- so any static charge that had built up on the belts during operation would have dissipated in the meantime.
Also, the error is a "feature" of the new bootloader 2.5, so it must be Firmware-related. And finally, my Core One has both stepper motors grounded, and nevertheless shows the blue screen after I updated the firmware and bootloader.
RE: 6.4.0-RC Firmware for Prusa CORE One
Any word on another beta Release Candidate to follow this alpha RC release?
RE: 6.4.0-RC Firmware for Prusa CORE One
The "RC" release has been out for 1 month and the bugs reports are piling up: https://github.com/prusa3d/Prusa-Firmware-Buddy/issues There have been no new release tags created. What is curious is the last commit into master branch was 2 months ago. That implies there must be an internal git repo where all the patching is happening and Prusa-Firmware-Buddy is just an external repo that is only periodically updated. So short answer is no way to know until Prusa announce it (i.e. create a new tag).
For me, besides an occasional BSOD on start-up I haven't run across anything major. The XL folks will beg to differ though and there appears to be issues with MK4 folks as well.
- Bob Marley
RE: 6.4.0-RC Firmware for Prusa CORE One
Calling this an RC was an epic misstep. The fact that they didn't catch the XL issue of hitting the dock after a print finishes can only be explained by not testing at all or incompetence. I'm glad they're taking their time now to fix the bugs and—hopefully—test everything thoroughly before releasing an RC2.
Formerly known on this forum as @fuchsr -- https://foxrun3d.com/
RE: 6.4.0-RC Firmware for Prusa CORE One
I'm glad they released for core One just because of the belt tuner, that's a game changer. But, easy for me to say, not owning an XL...
RE: 6.4.0-RC Firmware for Prusa CORE One
That's why I'm still on 6.2.6 on my xl and MK4s lol I live vicariously through you guys 🙂
I'm glad they released for core One just because of the belt tuner, that's a game changer. But, easy for me to say, not owning an XL...
RE: 6.4.0-RC Firmware for Prusa CORE One
I built a Core One this week that couldn't clean the nozzle with 6.3.4, but passes with 6.4.0 RC. Any idea why this could be? I've only printed for about 1 or 2h so far, but 6.4.0 RC seemed ok, and the belt tensioning wizard is helpful.