RE: 6.4.0 Firmware for Prusa CORE One + & CORE One
Am I the only one wishing for a FW update soon that, at the very least, fixes some of the more annoying problems like the non-functional "cancel parts"?
Tha last drop has been in Nov... and I understand that probably everone is busy writing the firware for INDX support, but some of the open issues are really, really annoying and have been know for a long time...
For me, the boot loader bluescreen is high on the list. With my printer residing in the basement, I tend to head downstairs just to turn it on, then straight back in order to prepare and send the print -- only to be called back by the recurring beeps from behind.
I have not run into the "cancel parts" issue -- when does that strike?
But I am not holding my breath for a FW update. I would assume (and hope) that the software team is focused on fully supporting the INDX, both in the firmware and in the slicer. And hence we might only get new firmware at the INDX release date, presumably end of Q1.
When you cancel a part, a least for me, on random layers the print head will move over the canceled part wasting time and possibly oozing filament onto the next part. As for the next firmware release, judging from the number of XL bugs introduced in 6.4.0, the INDX and the new high temp hot end, they probably have their hands full.
RE: 6.4.0 Firmware for Prusa CORE One + & CORE One
Am I the only one wishing for a FW update soon that, at the very least, fixes some of the more annoying problems like the non-functional "cancel parts"?
Tha last drop has been in Nov... and I understand that probably everone is busy writing the firware for INDX support, but some of the open issues are really, really annoying and have been know for a long time...
For me, the boot loader bluescreen is high on the list. With my printer residing in the basement, I tend to head downstairs just to turn it on, then straight back in order to prepare and send the print -- only to be called back by the recurring beeps from behind.
I have not run into the "cancel parts" issue -- when does that strike?
But I am not holding my breath for a FW update. I would assume (and hope) that the software team is focused on fully supporting the INDX, both in the firmware and in the slicer. And hence we might only get new firmware at the INDX release date, presumably end of Q1.
When you cancel a part, a least for me, on random layers the print head will move over the canceled part wasting time and possibly oozing filament onto the next part. As for the next firmware release, judging from the number of XL bugs introduced in 6.4.0, the INDX and the new high temp hot end, they probably have their hands full.
In my case it seems to do that on every layer. So far I've seen two behaviors:
- move away from the current object, travel to the starting point of the cancel object, travel back, ooze some material on the good part. If you are lucky this doesn't make the part useless. I was not lucky.
- (much worse) move away from the current print to the canceled object while still extruding filament, stay in the void for a few secs, come back to a completely ruined print as it has crossing filament lines where they are not supposed to be.
I'd love to have an INDX fw working great from the beginning (I did order the founder's edition) but a "dot" release just fixing a few of the macroscopic regressions like this (or the bootloader) should be a priority nevertheless.
RE: 6.4.0 Firmware for Prusa CORE One + & CORE One
FWIW: The belt tuning wizard... it's absolutely horrible. I used it per the instructions and it basically hosed my printer. Used the cell phone Hz web app and that actually worked. The FW wizard left the belts SO loose that they were under 60Hz...
RE: 6.4.0 Firmware for Prusa CORE One + & CORE One
FWIW: The belt tuning wizard... it's absolutely horrible. I used it per the instructions and it basically hosed my printer. Used the cell phone Hz web app and that actually worked. The FW wizard left the belts SO loose that they were under 60Hz...
That's the first time I read such negative feedback. Do you recall more details about the process and can describe what happened? Did you not see clear vibration maxima at all, or did the tensioning instructions lead you in the wrong direction, or something else?
RE: 6.4.0 Firmware for Prusa CORE One + & CORE One
I’ve compared the belt tuning wizard with the audio measurement and they seldom differ by more than 0.5hz.
RE: 6.4.0 Firmware for Prusa CORE One + & CORE One
Well, the the primary issue I recall it that it was nearly impossible to see the upper belt vibrate. To the point were the online instructions did not resemble the expected belt movement (vibration:/oscillation). This lead to having to loosen the belts significantly, re-verify the deck/gantry was aligned/square, and then attempt the tightening procedure. However, that did not appear to successful as the print quality was horrible.
As such, I broke out the web app, and the issue became clear: as adjusted by the FW procedure, the belts were way off.
All of the was attempting to deal with the pickiness and issues with installing the MMU3… only to find out that that had created an issue where the PTFE tube was catching on a stepper motor when it sagged slightly during full build plate prints. (Thus necessitating re-alignment / re-tuning, and calibration… just in case…)
RE: 6.4.0 Firmware for Prusa CORE One + & CORE One
Well, the the primary issue I recall it that it was nearly impossible to see the upper belt vibrate. To the point were the online instructions did not resemble the expected belt movement (vibration:/oscillation). This lead to having to loosen the belts significantly, re-verify the deck/gantry was aligned/square, and then attempt the tightening procedure. However, that did not appear to successful as the print quality was horrible.
That sounds like you might have moved in the wrong direction while in search of the elusive belt oscillation...
When the belt's current resonance frequency is anywhere in the range which the tuning wizard allows you to scan, I find that the oscillations are always clearly visible. I do see the issue that the wizard does not give any feedback when the initial tension is much too high or too low, so the resonance is outside of the scanned range. I guess it can't, since the firmware has no way of "seeing" that. Oh, if only Prusa had built the accelerometer into every Core One!
RE:
It’s funny you say that because I was going to recalibrate the thing again but I’m gonna pull out/use the accelerator this time.
getting frustrated to the point where I’m about to go out and buy some sort of bambu printer and just get rid of my core one. the whole MMU3 thing has been nothing but a way to drive me away from Prusa. I know that much of this should change with INDX… the the frustration level is getting high.
RE: 6.4.0 Firmware for Prusa CORE One + & CORE One
accelerometer... Siri still beats Prusa, for the moment, in my ire.
RE:
I agree belt tensioning is frustrating, though other printers seem to have their own tradeoffs.
I struggled immensely with the audio tuning process as often other resonating parts seemed to overwhelm the actual belt frequency. So I was way under tension on both belts at one point but the app repeatedly said it was spot on. Can't blame Prusa for phone microphone performance, but can blame them for choosing this method in the first place.
The strobe tuning is way cooler, and seems much better. You still have the problem of getting the belt to roughly the right tension in the first place though; seemingly you have to use the app to do that, or already know from experience roughly how it's meant to feel? Then my issue is the vague instructions on what to look for. The screen says "look for slow belt movement with sharp regular peaks". To me "sharp regular peaks" meant multiple pointy bits along the belt like a sine wave. But the gif shows the whole belt moving in a flat line. And what does "slow belt movement mean"? To me the gif is fast. The guide doesn't even make clear that the gif is showing the correct motion, I thought it wasn't at first. The guide's phrasing is a bit better "slow, extended, and steady resonating movement" but still vague. I guess just look at the gif, but more gifs comparing good/bad movement would be ideal, or a video.
Bambu however has "semi-automatic" belt tensioning via springs which I don't fully understand. The procedure says to loosen the bolts, move printhead around, then tighten again. Now, it says over-tightening the bolts doesn't increase tension, implying the tension is entirely set by this spring with no manual adjustment possible. But surely that's not precise at the best of times, and what if the belt stretches, or the spring weakens? Maybe the mechanism is cleverer that I think and somehow keeps tension precise, but it sounds more like Bambu tension is just ballpark and not that precise. There is mention of accelerometer based calibration but that's just for vibration compensation - it doesn't change the belt tension.
I think Prusa's accelerometer calibrations (Phase stepping / Input shaper) roughly correlate to Bambu's (Motor noise cancellation / Vibration compensation), while Prusa's belt tuning is more precise but frustrating to get right. I don't feel like we're missing anything compared to Bambu here.
I'd like a physical tension tester tool to get in the ballpark, then to use the strobe tool for final adjustment (with clearer guide + video).
Edit:
Just checked Snapmaker's belt tension guide too; they say to do it every 3 months or so and it's a manual process like Prusa. They do have a printed tension tester tool though, so it's easier but again less precise.
RE:
My printer is working (aside from the known problems in the fw) rather well, so I will not touch anything until the INDX upgrade arrives. I am so much looking forward to this as this will bring a wave of interesting discussions:
- need to recalibrate everything (different weight of the INDX hw, different sensors)
- a new mount for the accelerometer sensor
- new cables? new loveboard? new way of keeping the cable tree horizontal without the ptfe tube?
- new (tank turret) top with the related chamber temp questions?
- multinozzle sizes for the same print supported in Prusaslicer?
- finding something meaningful to print in multicolor 😀
There is this (often misquoted as curse) old saying going "may you live in interesting times!" ... this one upgrade starts to look like more and more like a new printer 😀
RE: 6.4.0 Firmware for Prusa CORE One + & CORE One
- need to recalibrate everything (different weight of the INDX hw, different sensors)
- a new mount for the accelerometer sensor
- new cables? new loveboard? new way of keeping the cable tree horizontal without the ptfe tube?
- new (tank turret) top with the related chamber temp questions?
- multinozzle sizes for the same print supported in Prusaslicer?
I sure hope that there is a similar checklist somewhere in the Prusa and Bondtech offices! 😏
RE: 6.4.0 Firmware for Prusa CORE One + & CORE One
I suppose I’ve re-tensioned and re-squared enough times that I can actually get the belts in range of the tuner just by ear. Anyway, the strobe tuner is a vast improvement over the audio app.
RE: 6.4.0 Firmware for Prusa CORE One + & CORE One
Folks, thanks for the responses. I truly appreciate it. This has been extremely frustrating; my Core One was generally wonderful, if feature limited, and it's become totally unreliable since attempting to use the MMU3 with it.
RE: 6.4.0 Firmware for Prusa CORE One + & CORE One
Folks, thanks for the responses. I truly appreciate it. This has been extremely frustrating; my Core One was generally wonderful, if feature limited, and it's become totally unreliable since attempting to use the MMU3 with it.
Feel your pain.
My C1 is now mostly rock solid (once I got skew under control). The arrival of the INDX will kick new life into the printer. But I'm still running into a roadblocks because this printer's temperature limitations are getting in my way with my new rocketry hobby. There is a lot now I want to do but can't simply because I don't have an actively heated chamber nor a hot enough nozzle.
I keep jealously eyeing the 22 IDEX and pulling out the credit card, but I'm not going to drop that amount of cash on a hobby anymore (reminds me... need to sell 5 of my 7 telescopes...) Kind of like driving around in a reliable but rusted out Volkswagen Beetle and watching the sleek electric cars passing me on the highway.
Since Prusa announced the new HT hot end, I'm hoping they will come out with an insulated and actively heated C1. Come June will decide if I need to maybe pick up instead a QIDI Q2 for 1/3 the price of a new C1.
RE: 6.4.0 Firmware for Prusa CORE One + & CORE One
Yup, so without a doubt that screwed up my configuration so much with respect to the belts being properly tuned and so on, that I actually had to use the accelerometer to get the printer printing properly.
No doubt about it: the firmware tool is definitely not obvious when the belts don’t function in a manner that is expected. @Sfcgeorge pretty much nailed it in his response…
The printer is now working like it’s supposed to… though I will say the overture PETG picked up for some cheap printing really is not great stuff. now that that’s filed in the printer is working properly and it’s also not making hideous noises when making large movements from one side to the other.
I’m sure the documentation for the firmware base tool makes sense for some people, but it was not obvious to me and it certainly didn’t work given that the top belt never vibrated in any significant manner with the deck alignment procedure properly done…
RE: 6.4.0 Firmware for Prusa CORE One + & CORE One
No doubt about it: the firmware tool is definitely not obvious [...] I’m sure the documentation for the firmware base tool makes sense for some people, but it was not obvious to me and it certainly didn’t work given that the top belt never vibrated in any significant manner with the deck alignment procedure properly done…
Now that you have the correct tensions set, have you tried the stroboscopic adjustment again? No need to make any actual changes to the tension settings. But since you know at which frequencies to expect the resonances now, maybe that helps to get comfortable with the tool.
RE:
Heck no. I'm Frustrated with the belt tensioning tool in the FW at the moment. Even if we’re just talking about looking… this was a PITA of epic proportions.
RE: 6.4.0 Firmware for Prusa CORE One + & CORE One
Well, the Prusa Core one has officially been replaced. I think it's one of the best printing units available, and the ecosystem is far more flexible that others. It's the little things, such as the FW / instructions and, frankly, support when I needed it. We'll see how the P2S works for the small stuff. Hopefully, the INDX will come out, not take a year to become mature, and be supported properly.
RE: 6.4.0 Firmware for Prusa CORE One + & CORE One
I expect massive teething pains with the INDX. But since I'm not relying on this printer for daily life (i.e. running a business) I'm anticipating a "fun" experience. Regardless, sooner or later I will need an additional "engineering printer". Unless the "Core Two" will have an actively heated chamber, it will probably be an H2D but without the AMS. I could care less about multi-color.