Solved G02/G03 Arc Issues
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Do you use coasting or wipe?
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@phaedrux No wipe, but I do use coasting. It's enabled with defaults - Coasting Volume 0.064 mm3, Minimum volume before coasting 0.8 mm3 and Coasting Speed 90%.
Should I try disabling it and see if the tab still appears?
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yes try disabling coasting/wiping/ etc
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@phaedrux No difference with coasting disabled - tab is still there.
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@zylantha I opened up the arc welder GCODE file in a few different parsers/previewers, and I’m not seeing anything that should generate that tab. It’s pretty weird!
I opened it up in Craftware (which doesn’t support G02/G03, but is still useful as a quick check) as well as a few online parsers that properly display G02/G03 segments.
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@zylantha I don't think ArcWelder is doing what you expect. The main outer circle hasn't been converted to arcs, looking at the gcode. Only the central hole, and the first and last segment of the exterior wall are G2 or G3. I think this glitch is happening on the corner of the larger part just after it prints the internal hole, rather than the part that slides in and out. Z=16 is about half way up, and this is the gcode for the perimeters of the larger part, at Z=16:
G1 F2400 X208.253 Y200.454 E0.01005 G1 X183.587 Y175.788 E1.39226 G2 X176.413 Y175.788 I-3.587 J-0.800 E0.52517 F2400 G1 X151.747 Y200.454 E1.39226 G1 X151.569 Y200.632 E0.01005 G3 X149.805 Y198.594 I16.998 J-16.495 E0.10398 G1 X147.682 Y195.591 E0.14678 G1 X147.29 Y194.962 E0.02958 G1 X145.466 Y191.607 E0.15242 G1 X145.21 Y191.065 E0.02392 G1 X143.738 Y187.39 E0.15801 G1 X143.579 Y186.911 E0.02014 G1 X142.529 Y183.027 E0.16058 G1 X142.456 Y182.669 E0.01458 G1 X141.84 Y178.511 E0.16777 G1 X141.823 Y178.305 E0.00825 G1 X141.693 Y173.976 E0.17286 G1 X141.699 Y173.815 E0.00643 G1 X142.087 Y169.428 E0.17578 G1 X142.989 Y165.072 E0.17755 G1 X144.418 Y160.772 E0.18085 G1 X146.275 Y156.805 E0.17482 G1 X146.364 Y156.641 E0.00745 G1 X148.596 Y153.039 E0.16913 G1 X148.769 Y152.794 E0.01197 G1 X151.328 Y149.577 E0.16407 G1 X151.653 Y149.216 E0.01939 G1 X154.452 Y146.439 E0.15737 G1 X154.896 Y146.048 E0.02361 G1 X157.898 Y143.697 E0.15219 G1 X158.525 Y143.264 E0.03041 G1 X161.665 Y141.354 E0.14669 G1 X162.46 Y140.931 E0.03594 G1 X165.364 Y139.599 E0.12752 G1 X194.636 Y139.599 E1.16831 G1 X197.54 Y140.931 E0.12752 G1 X198.335 Y141.354 E0.03594 G1 X201.475 Y143.264 E0.14669 G1 X202.102 Y143.697 E0.03041 G1 X205.104 Y146.048 E0.15219 G1 X205.548 Y146.439 E0.02361 G1 X208.347 Y149.216 E0.15737 G1 X208.672 Y149.577 E0.01939 G1 X211.231 Y152.794 E0.16407 G1 X211.404 Y153.039 E0.01197 G1 X213.621 Y156.615 E0.16793 G1 X213.73 Y156.816 E0.00913 G1 X215.575 Y160.756 E0.17364 G1 X215.594 Y160.804 E0.00206 G1 X217.011 Y165.072 E0.17949 G1 X217.913 Y169.428 E0.17755 G1 X218.301 Y173.819 E0.17594 G1 X218.306 Y173.966 E0.00587 G1 X218.177 Y178.305 E0.17326 G1 X218.16 Y178.511 E0.00825 G1 X217.544 Y182.669 E0.16777 G1 X217.471 Y183.027 E0.01458 G1 X216.421 Y186.911 E0.16058 G1 X216.262 Y187.39 E0.02014 G1 X214.79 Y191.065 E0.15801 G1 X214.534 Y191.607 E0.02392 G1 X212.71 Y194.962 E0.15242 G1 X212.318 Y195.591 E0.02958 G1 X210.195 Y198.594 E0.14678 G3 X208.431 Y200.632 I-50.893 J-42.268 E0.10398 G0 F12000 X208.45 Y201.329 G1 F2400 X183.062 Y175.942 E1.43298 G2 X176.938 Y175.942 I-3.062 J-0.943 E0.47752 F2400 G2 X151.550 Y201.329 I639980.875 J640031.472 E1.43298 G3 X149.416 Y198.876 I20.696 J-20.159 E0.12617 G1 X147.285 Y195.86 E0.14739 G3 X144.768 Y191.253 I55.554 J-33.342 E0.20962 G1 X143.286 Y187.553 E0.15908 G3 X143.117 Y187.037 I2.944 J-1.250 E0.02168 G2 X142.062 Y183.136 I-89.080 J21.998 E0.16129 G3 X141.343 Y178.324 I128.237 J-21.621 E0.19423 G1 X141.213 Y173.974 E0.1737 G1 X141.219 Y173.799 E0.00699 G1 X141.612 Y169.357 E0.17798 G1 X142.526 Y164.944 E0.17987 G1 X143.954 Y160.641 E0.18095 G1 X143.983 Y160.569 E0.0031 G1 X145.847 Y156.587 E0.17548 G1 X145.948 Y156.401 E0.00845 G1 X148.188 Y152.786 E0.16974 G1 X148.393 Y152.495 E0.01421 G1 X150.958 Y149.27 E0.16446 G1 X151.306 Y148.884 E0.02074 G1 X154.119 Y146.093 E0.15816 G1 X154.595 Y145.674 E0.02531 G1 X157.614 Y143.31 E0.15304 G1 X158.264 Y142.861 E0.03153 G1 X161.424 Y140.938 E0.14764 G1 X162.242 Y140.503 E0.03698 G1 X165.26 Y139.119 E0.13252 G1 X194.74 Y139.119 E1.17661 G1 X197.758 Y140.503 E0.13252 G1 X198.576 Y140.938 E0.03698 G1 X201.736 Y142.861 E0.14764 G1 X202.386 Y143.31 E0.03153 G1 X205.405 Y145.674 E0.15304 G1 X205.881 Y146.093 E0.02531 G1 X208.694 Y148.884 E0.15816 G1 X209.042 Y149.27 E0.02074 G1 X211.607 Y152.495 E0.16446 G1 X211.812 Y152.786 E0.01421 G1 X214.037 Y156.375 E0.16854 G1 X214.164 Y156.609 E0.01063 G1 X216.014 Y160.561 E0.17416 G1 X216.046 Y160.641 E0.00344 G1 X217.474 Y164.944 E0.18095 G1 X218.388 Y169.357 E0.17987 G2 X218.787 Y173.962 I151.528 J-10.809 E0.18449 G1 X218.657 Y178.324 E0.17417 G1 X218.636 Y178.572 E0.00993 G1 X218.018 Y182.744 E0.16833 G1 X217.938 Y183.136 E0.01597 G1 X216.877 Y187.062 E0.16232 G1 X216.714 Y187.553 E0.02065 G1 X215.232 Y191.253 E0.15908 G1 X214.961 Y191.827 E0.02533 G1 X213.128 Y195.199 E0.15318 G1 X212.715 Y195.86 E0.03111 G1 X210.584 Y198.876 E0.14739 G3 X208.895 Y200.834 I-18.222 J-14.011 E0.10324 G0 F2160 X208.45 Y201.329 G0 F12000 X208.469 Y202.026 G2 X182.498 Y176.056 I-669844.203 J669844.025 E1.46589 F2400 G2 X177.502 Y176.056 I-2.498 J-1.064 E0.42774 G2 X151.531 Y202.026 I669818.245 J669870.008 E1.46589 G2 X149.635 Y199.917 I-2855.646 J2565.332 E0.10955 G1 X149.035 Y199.168 E0.0383 G1 X146.887 Y196.129 E0.14853 G2 X146.454 Y195.435 I-11.406 J6.635 E0.03265 G1 X144.612 Y192.047 E0.15392 G1 X144.326 Y191.441 E0.02675 G1 X142.84 Y187.731 E0.15951 G3 X141.508 Y182.824 I72.291 J-22.257 E0.20301 G1 X140.888 Y178.633 E0.16909 G3 X140.739 Y173.784 I110.359 J-5.818 E0.19366 G1 X141.133 Y169.318 E0.17894 G1 X141.138 Y169.28 E0.00153 G1 X142.063 Y164.816 E0.18195 G1 X143.501 Y160.48 E0.18233 G1 X143.546 Y160.369 E0.00478 G1 X145.412 Y156.383 E0.17566 G1 X145.532 Y156.16 E0.01011 G1 X147.789 Y152.519 E0.17098 G1 X148.01 Y152.205 E0.01533 G1 X150.588 Y148.964 E0.16529 G1 X150.958 Y148.552 E0.0221 G1 X153.786 Y145.747 E0.15898 G1 X154.294 Y145.3 E0.02701 G1 X157.33 Y142.923 E0.15389 G1 X158.003 Y142.458 E0.03265 G1 X161.183 Y140.522 E0.14859 G1 X162.024 Y140.075 E0.03801 G1 X165.156 Y138.639 E0.13752 G1 X194.844 Y138.639 E1.18491 G1 X197.976 Y140.075 E0.13752 G1 X198.817 Y140.522 E0.03801 G1 X201.997 Y142.458 E0.14859 G1 X202.67 Y142.923 E0.03265 G1 X205.706 Y145.3 E0.15389 G1 X206.214 Y145.747 E0.02701 G1 X209.042 Y148.552 E0.15898 G1 X209.412 Y148.964 E0.0221 G1 X211.99 Y152.205 E0.16529 G1 X212.211 Y152.519 E0.01533 G1 X214.453 Y156.135 E0.16981 G1 X214.592 Y156.391 E0.01163 G1 X216.454 Y160.369 E0.1753 G1 X216.499 Y160.48 E0.00478 G1 X217.937 Y164.816 E0.18233 G1 X218.862 Y169.28 E0.18195 G1 X218.867 Y169.318 E0.00153 G1 X219.258 Y173.758 E0.1779 G3 X219.267 Y173.960 I-1.315 J0.160 E0.00807 G1 X219.137 Y178.346 E0.17513 G1 X219.112 Y178.633 E0.0115 G1 X218.492 Y182.824 E0.16909 G1 X218.406 Y183.242 E0.01703 G1 X217.336 Y187.203 E0.16376 G1 X217.16 Y187.731 E0.02221 G1 X215.674 Y191.441 E0.15951 G1 X215.388 Y192.047 E0.02675 G1 X213.546 Y195.435 E0.15392 G1 X213.113 Y196.129 E0.03265 G1 X210.965 Y199.168 E0.14853 G1 X210.365 Y199.917 E0.0383 G2 X208.469 Y202.026 I2853.750 J2567.441 E0.10955 G0 F12000 X208.488 Y202.723 ;TYPE:WALL-OUTER G1 F2400 X181.914 Y176.15 E1.49992 G2 X178.086 Y176.150 I-1.914 J-1.155 E0.37722 F2400 G1 X151.512 Y202.723 E1.49992 G1 X149.267 Y200.226 E0.13402 G1 X148.654 Y199.46 E0.03916 G1 X146.489 Y196.398 E0.14967 G1 X146.036 Y195.671 E0.03419 G1 X144.185 Y192.267 E0.15465 G1 X143.884 Y191.63 E0.02812 G1 X142.394 Y187.909 E0.15998 G1 X142.205 Y187.344 E0.02378 G1 X141.126 Y183.348 E0.1652 G1 X141.034 Y182.904 E0.0181 G1 X140.412 Y178.693 E0.16989 G1 X140.383 Y178.37 E0.01294 G1 X140.253 Y173.974 E0.17553 G1 X140.259 Y173.77 E0.00815 G1 X140.656 Y169.266 E0.18046 G1 X140.666 Y169.195 E0.00286 G1 X141.6 Y164.688 E0.18371 G1 X143.045 Y160.329 E0.18329 G1 X143.111 Y160.165 E0.00706 G1 X144.977 Y156.179 E0.17566 G1 X145.124 Y155.907 E0.01234 G1 X147.388 Y152.255 E0.1715 G1 X147.634 Y151.906 E0.01704 G1 X150.218 Y148.658 E0.16565 G1 X150.61 Y148.221 E0.02343 G1 X153.453 Y145.401 E0.15982 G1 X153.993 Y144.926 E0.0287 G1 X157.046 Y142.535 E0.15477 G1 X157.742 Y142.055 E0.03374 G1 X160.942 Y140.106 E0.14954 G1 X161.806 Y139.647 E0.03905 G1 X165.052 Y138.159 E0.14252 G1 X194.948 Y138.159 E1.19321 G1 X198.194 Y139.647 E0.14252 G1 X199.058 Y140.106 E0.03905 G1 X202.258 Y142.055 E0.14954 G1 X202.954 Y142.535 E0.03374 G1 X206.007 Y144.926 E0.15477 G1 X206.547 Y145.401 E0.0287 G1 X209.39 Y148.221 E0.15982 G1 X209.782 Y148.658 E0.02343 G1 X212.366 Y151.906 E0.16565 G1 X212.612 Y152.255 E0.01704 G1 X214.869 Y155.895 E0.17094 G1 X215.023 Y156.179 E0.01289 G1 X216.889 Y160.165 E0.17566 G1 X216.955 Y160.329 E0.00706 G1 X218.4 Y164.688 E0.18329 G1 X219.334 Y169.195 E0.18371 G1 X219.344 Y169.266 E0.00286 G1 X219.741 Y173.77 E0.18046 G1 X219.747 Y173.96 E0.00759 G1 X219.617 Y178.37 E0.17609 G1 X219.588 Y178.693 E0.01294 G1 X218.966 Y182.904 E0.16989 G1 X218.874 Y183.348 E0.0181 G1 X217.795 Y187.344 E0.1652 G1 X217.606 Y187.909 E0.02378 G1 X216.116 Y191.63 E0.15998 G1 X215.815 Y192.267 E0.02812 G1 X213.964 Y195.671 E0.15465 G1 X213.511 Y196.398 E0.03419 G1 X211.346 Y199.46 E0.14967 G1 X210.733 Y200.226 E0.03916 G1 X208.933 Y202.228 E0.10745 G0 F2160 X208.488 Y202.723 G0 F12000 X208.477 Y202.275 G0 X209.378 Y199.077
As you can see, it's mostly G1 moves around the perimeter. If you paste it into this gcode simulator https://nraynaud.github.io/webgcode/ you'll see that the G2 and G3 commands are only at the sharp corners (you can step through the moves and it highlights them on the preview). However, it does render correctly on this simulator.
Unfortunately I'm not set up with a printer today to test the gcode. I'll point @dc42 at this thread, as I'm sure there was a similar issue before RRF 3.3 that was fixed, but I can't find the thread.
Ian
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@droftarts I agree - Arc welder isn't smoothing the outside of the model, which is a separate problem (probably need to tweak a setting somewhere, but even so that tab really shouldn't be there according to the GCODE as interpreted by various apps.
I have a video of it printing, including where it did the tab - I might have to upload to Youtube to share though as it doesn't look like I can upload here to the forums?
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@zylantha yes, upload to YouTube and post a link. Can you run the Gcode I posted above, and video that? Helps with diagnosis if it can be shown in a small section of gcode. Can you also update your firmware to the latest 3.4beta6 to see if that makes a difference? You can always revert to 3.3 after testing.
Ian
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@zylantha I've printed the first 3 layers, and I didn't see the tab. So maybe this is already fixed in the 3.4beta series firmware. The print is slow so I didn't let it run for longer.
If after upgrading to 3.4beta6 you still have this problem, please provide a cut-down version of this print that still exhibits the problem, e.g. with 0 or 1 bottom solid layers and low infill. Preferably centre it on X0 Y0 because all my printers have X0 Y0 at bed centre.
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Thanks @dc42, I have reprinted the exact same GCODE on 3.4.0beta6 and the tab didn't appear - so looks like this bug is fixed in this latest beta firmware.
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@zylantha thanks for confirming.
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