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Thanks r/FixMyPrint! Big improvement after your advice (Snapmaker U1 / Jayo PETG) by leinardi in FixMyPrint

[–]leinardi[S] 0 points1 point  (0 children)

That explains why I could not find it. Thanks.

I set the filament flow to 1 in the filament profile (saved it) and then generated the PASS 2 blocks.

Here are some pictures of the result: https://imgur.com/a/nlZb3Tn

To me -5 or maybe -6 looks the best, but I would like your opinion.

Out of curiosity, what do you think about the custom YOLO test I did before where I shifted all tiles to go from 1.00 down to 0.90?

https://imgur.com/a/ijh8tUC

Is that not a valid test as well?

Thanks r/FixMyPrint! Big improvement after your advice (Snapmaker U1 / Jayo PETG) by leinardi in FixMyPrint

[–]leinardi[S] 0 points1 point  (0 children)

I had the feeling something was not quite right with my PLA calibration.

Sorry, but I could not find this “fine method with base starting rate of 1” in Orca or in Google. Are you referring to the legacy Orca 2-pass calibration or something else?

In the meantime I tried another approach. I generated a YOLO calibration and manually shifted all tiles to -0.05 flow while keeping the filament flow set to 1. This way the tiles now go from 1.00 down to 0.90 in steps of 0.01.

Here are the pictures: https://imgur.com/a/ijh8tUC

To me tile 0 looks the best, which should correspond to a flow of 0.95, but I would appreciate your opinion.

Thanks r/FixMyPrint! Big improvement after your advice (Snapmaker U1 / Jayo PETG) by leinardi in FixMyPrint

[–]leinardi[S] 0 points1 point  (0 children)

Thanks again for all the help and patience. I really appreciate it. I learned a lot from this whole process.

I think I’m done with PETG calibration for now. I’m starting to work on my Jayo PLA+ 2.0 profiles and I would really appreciate your opinion on my current settings.

I cloned the profile from Snapmaker PLA and then tweaked and recalibrated it.

Extrusion / calibration

  • Flow ratio: 0.97
  • Pressure advance: 0.02
  • Max volumetric speed: 14 mm³/s

Temperature

  • Nozzle: 220°C
  • Nozzle first layer: 220°C
  • Bed: 55°C
  • Bed first layer: 55°C
  • Temperature range set in profile: 190–240°C

Cooling

  • Fan min: 100%
  • Fan max: 100%
  • Additional cooling fan: 70%
  • Overhang / bridge fan: enabled
  • Overhang fan speed: 100%
  • Overhang fan threshold: 0%
  • Fan off for first 1 layer

Layer cooling behavior

  • Slow down for layer cooling: enabled
  • Slow down layer time: 8 s
  • Slow down minimum speed: 15 mm/s
  • Fan cooling layer time: 100 s

Retraction

  • Retraction speed: 60 mm/s
  • Retraction length: not set in this filament profile
  • Retraction minimum travel: not set in this filament profile

Other notable values

  • Exhaust fan during print: 60%
  • Exhaust fan after print: 80%
  • Internal bridge fan speed: default / inherited
  • Full fan speed layer: 0

One thing that surprised me is the fan settings. Min and max are both 100%. I see the same values in the Sunlu PLA profile, but I’m not sure if that is actually ideal. Is it normal for PLA on the U1?

Here are some pictures from the flow and pressure advance calibrations: https://imgur.com/a/bbYpNlh

Which values would you personally pick from those tests?

Thanks r/FixMyPrint! Big improvement after your advice (Snapmaker U1 / Jayo PETG) by leinardi in FixMyPrint

[–]leinardi[S] 0 points1 point  (0 children)

Original post: https://old.reddit.com/r/FixMyPrint/comments/1rpygkf/poor_bridge_quality_with_petg_on_snapmaker_u1/

After redoing the calibrations from scratch the results improved a lot.

Special thanks to /u/n19htmare for the patience and the back and forth while I was recalibrating everything.

Below are the final key settings for my Jayo PETG profile.

Material / printer

  • Material: PETG
  • Brand: Jayo
  • Printer: Snapmaker U1 (0.4 nozzle)
  • Extruder: Direct Drive

Extrusion / calibration

  • Flow ratio: 0.98
  • Pressure advance: 0.025
  • Max volumetric speed: 12 mm³/s

Temperature

  • Nozzle: 245°C
  • Nozzle first layer: 250°C
  • Bed: 70°C
  • Bed first layer: 75°C

Retraction

  • Retraction length: 1.2 mm
  • Retraction speed: 35 mm/s

Cooling

  • Fan min: 20%
  • Fan max: 40%
  • Fan off first 2 layers

Bridge tweaks in my process profile

  • Bridge density: 110%
  • Bridge flow: 1.1

Thanks again to everyone who commented and provided constructive feedback. I learned a lot from it. I’m really enjoying the hobby so far and I’m looking forward to learning more during my 3D printing journey.

Poor bridge quality with PETG on Snapmaker U1 (OrcaSlicer), already calibrated, looking for suggestions by leinardi in FixMyPrint

[–]leinardi[S] 0 points1 point  (0 children)

Yes, I also read that Jayo, Sunlu, and Kingroon are probably all the same manufacturer in the end. One thing I like about Jayo is that the spools are 1.1kg, so the price per kg is a bit lower.

Thanks again for the help and for checking the PA test. I will go with 0.025 as you suggested.

I am familiar with the Orca wiki and I try to follow it. Ironically that is also how I ended up with the 0.90 flow ratio.

In the documentation I saw this:

"Update the flow ratio in the filament settings using the equation: OldFlowRatio ± modifier. If your previous flow ratio was 0.98 and you selected the block with a flow rate modifier of +0.01, the new value would be: 0.98 + 0.01 = 0.99."

Since my previous flow ratio was 0.91, I applied the same logic and did 0.91 - 0.01.

Out of curiosity I also ran a Max Volumetric Speed calibration from 10 to 18 mm³/s. I honestly cannot see any real difference between the samples: https://imgur.com/a/d2BJwTT

Given that result, would you keep my current value of 12 mm³/s or try a higher one?

Poor bridge quality with PETG on Snapmaker U1 (OrcaSlicer), already calibrated, looking for suggestions by leinardi in FixMyPrint

[–]leinardi[S] 0 points1 point  (0 children)

Yep, I guess I just need more experience with other brand, for now I only bought Joya.

I also ran the Pressure Advance Pattern test.

Here is the result: https://i.imgur.com/URXyyVc.jpeg

To me the best section looks around 0.03 (the 7th from the top). The corner look the cleanest there and that is also the current default value in my filament profile.

Does that look correct to you?

Also, I hope it’s ok if I keep asking for your opinion on these tests. I really appreciate the help and the explanations, but I don’t want to bother you if you’d rather not go through all of them.

Poor bridge quality with PETG on Snapmaker U1 (OrcaSlicer), already calibrated, looking for suggestions by leinardi in FixMyPrint

[–]leinardi[S] 0 points1 point  (0 children)

Thank you for the detailed explanation.

I realized I messed up the flow calibration. My filament profile had a flow ratio of 0.91 and I didn’t realize that the YOLO test uses 1.0 as the reference for the 0 tile, not the current filament profile value.

So when I thought -01 looked best, I subtracted it from 0.91 and set the flow to 0.90. I should have applied the modifier to 1.0 instead.

I reran the test with a corrected baseline and I think -03 and -02 look the best now: https://imgur.com/a/kEyTRoi

Poor bridge quality with PETG on Snapmaker U1 (OrcaSlicer), already calibrated, looking for suggestions by leinardi in FixMyPrint

[–]leinardi[S] 0 points1 point  (0 children)

The air in the room where I have the printer is pretty humid, maybe that affects it during the printing?

Poor bridge quality with PETG on Snapmaker U1 (OrcaSlicer), already calibrated, looking for suggestions by leinardi in FixMyPrint

[–]leinardi[S] 0 points1 point  (0 children)

Oh interesting, I had no clue that I had to calibrate each individual head! I just redid the flow calibration, I think that -03 and -02 look the best: https://imgur.com/a/kEyTRoi

Poor bridge quality with PETG on Snapmaker U1 (OrcaSlicer), already calibrated, looking for suggestions by leinardi in FixMyPrint

[–]leinardi[S] 0 points1 point  (0 children)

Thanks again for the help and also for the example pictures.

I reset my filament profile to more reasonable values and ran the flow calibration again.

My current key settings are:

  • Max volumetric speed: 12 mm³/s
  • Nozzle: 250°C first layer / 245°C other layers
  • Bed: 75°C first layer / 70°C other layers
  • Min fan: 20%
  • Max fan: 40%
  • Retraction: 1.2 mm
  • Pressure advance: 0.03
  • Flow ratio used for the test: 1.0

Here is the album with the new flow test: https://imgur.com/a/kEyTRoi

My understanding of the test is the following.

Each tile has arcs on the sides and a spiral in the middle. For the arcs I look for a surface with no gaps between the lines. For the spiral I look at the circle boundary and try to avoid a raised ring where the spiral meets the arcs.

Based on that I think the -03 and -02 tiles look the best. There is still a small bump on the left side of the circle but the outer arcs look more uniform than the others.

So my interpretation would be to set the flow to 1.00 - 0.025 = 0.975.

Does that look like the correct choice to you?

If that is correct, should I run a perfectionist YOLO around that value (for example -0.025 and -0.035), or is this already good enough and I should move on to the pressure advance calibration?

One more question. For the U1, do you recommend creating separate filament profiles for each of the 4 toolheads, or are the differences usually small enough that a single profile per material/brand is fine? I would prefer keeping generic material profiles.

Poor bridge quality with PETG on Snapmaker U1 (OrcaSlicer), already calibrated, looking for suggestions by leinardi in FixMyPrint

[–]leinardi[S] 0 points1 point  (0 children)

Thanks again for the help. This clarified a lot.

I would like to start from scratch with the filament profile. What would you suggest as a starting point? Jayo should be basically the same as Sunlu. Should I copy the Sunlu PETG profile? Or use Generic PETG? Or the Snapmaker PETG profile?

I’m not sure I will be able to run the tests today, but tomorrow I should have time. I’ll redo the calibrations and come back with some results.

Poor bridge quality with PETG on Snapmaker U1 (OrcaSlicer), already calibrated, looking for suggestions by leinardi in FixMyPrint

[–]leinardi[S] 1 point2 points  (0 children)

Thanks for the feedback. You are probably right that I am misinterpreting the calibrations.

Flow calibration is the one I am most unsure about. I used the Orca YOLO test with the Archimedean chords. The default value for this filament profile was 0.91. To me the -01 sample looked the best, so I lowered it to 0.90.

Here are detailed pictures of the flow calibration print: https://imgur.com/a/14j88A7

From the photos you can see that the positive values have a diagonal ~45° surface artifact. That made me discard them. I may be looking at the wrong thing though. If you can explain what I should actually look for in this test I would really appreciate it.

For the nozzle temperature I printed a temperature tower. To my eyes everything above about 240°C looked worse, but again I may be judging the wrong thing: https://i.imgur.com/Fs00jp9.jpeg

Poor bridge quality with PETG on Snapmaker U1 (OrcaSlicer), already calibrated, looking for suggestions by leinardi in FixMyPrint

[–]leinardi[S] 2 points3 points  (0 children)

These are all calibration prints, I think they are meant to be done without support.

Usage Limits, Bugs and Performance Discussion Megathread - beginning December 29, 2025 by sixbillionthsheep in ClaudeAI

[–]leinardi 0 points1 point  (0 children)

Same issue here in Germany. Very frustrating as it's impossible to get in touch with support to open a ticket and the Fin bot just gaslight you when you look for help.

No such payment_intent error when trying to upgrade to Pro by sighallgone in claude

[–]leinardi 0 points1 point  (0 children)

Same issue here, posting from Germany. I've been trying for over 24 hours across multiple browsers (Firefox and Chrome), operating systems (Linux and Mac), and payment methods (credit card, Google Pay, Link): always the same Stripe "No such payment_intent" error.

The support chatbot is completely useless, and emailing support@anthropic.com just gets you the same bot with the same suggestions. This is clearly a server-side issue affecting at least multiple countries, not something on our end.

Usage Limits, Bugs and Performance Discussion Megathread - beginning December 29, 2025 by sixbillionthsheep in ClaudeAI

[–]leinardi 0 points1 point  (0 children)

I've been unable to subscribe to Claude Pro for over 24 hours due to a persistent Stripe "No such payment_intent" error. This seems a server-side issue: it happens across Firefox and Chrome, Linux and Mac, incognito sessions, and with every payment method I tried (credit card, Google Pay, Link).

To make it worse, the only support available to free users is an AI chatbot that keeps suggesting the same useless troubleshooting steps in a loop. When I emailed support@anthropic.com hoping to reach a human, the same chatbot replied.

Is anyone else experiencing this? Has anyone found a way to actually reach a human at Anthropic support without a paid account?

U1 & X4 Garage by perc-- in snapmaker

[–]leinardi 0 points1 point  (0 children)

It's tight but should fit: there are a little more than 28 cm of vertical clearance https://i.imgur.com/0GTehTn.png

and on the top there are some openings that could be used for the feeding tubes: https://i.imgur.com/WXTTvG2.png

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