tg73 Comments - Answer Overflow

Yeah, cura is not supported. We have limited human resources to deal with different slicers, and cura didn't make the cut. You are best asking @miklschmidt (RatOS author/maintainer) if you want to discuss that.

38 replies

RRCRat Rig Community [Unofficial]

•Created by Azzkikkr on 1/27/2025 in #ratos-support

Print Start shows a warning about incomplete Slicer configuration.

Is this a non-IDEX machine?

38 replies

RRCRat Rig Community [Unofficial]

•Created by Azzkikkr on 1/27/2025 in #ratos-support

Print Start shows a warning about incomplete Slicer configuration.

Ah, using cura.

38 replies

RRCRat Rig Community [Unofficial]

•Created by Azzkikkr on 1/27/2025 in #ratos-support

Print Start shows a warning about incomplete Slicer configuration.

What was the problem being solved by setting those two vars?

38 replies

RRCRat Rig Community [Unofficial]

•Created by Azzkikkr on 1/27/2025 in #ratos-support

Print Start shows a warning about incomplete Slicer configuration.

It's because postprocessing is bypassed. The postprocessor sets FIRST_X and FIRST_Y.

38 replies

RRCRat Rig Community [Unofficial]

•Created by tg73 on 10/8/2024 in #fix-my-print

Regular surface distortion pattern towards end of larger first layers VC4

Looks like you have a 300? If so, that's a far easier beast to tame than the larger machines, particularly the 500.

1857 replies

RRCRat Rig Community [Unofficial]

•Created by Flo@GRNbms on 12/15/2024 in #fix-my-print

First layer problem

Just to note that the modified housing was not checked at all for actual printing - which includes fitting the belts and belt clamps to it. It may not be strong enough or have the right fixing points for that. The report notes that the modified housings are not claimed to be suitable for printing use.

134 replies

RRCRat Rig Community [Unofficial]

•Created by tg73 on 10/8/2024 in #fix-my-print

Regular surface distortion pattern towards end of larger first layers VC4

There's only a very thin gap there. We did try putting tape on the gantry itself (reflective alu and also kapton, see the Tape section of the report) with little effect. If you put tape across the housing part behind the heatsink, you'd block the main exhaust airway. I would then expect the constrained exhaust air to head out downwards over the heatblock, which is already problematic.

1857 replies

RRCRat Rig Community [Unofficial]

•Created by tg73 on 10/8/2024 in #fix-my-print

Regular surface distortion pattern towards end of larger first layers VC4

I'm primarily doing testing and development on this at the moment, but I would still use a fan for production printing. That was just a test to try and find the boundary of hotend cooling. It was only a small scale test on one machine, so while it's of interest, it can't be taken as strong evidence of a broader pattern.

1857 replies

RRCRat Rig Community [Unofficial]

•Created by tg73 on 10/8/2024 in #fix-my-print

Regular surface distortion pattern towards end of larger first layers VC4

As a point of interest, as part of an attempt to trigger a heat creep jam, I did a series of voronoi egg test prints (slow filament speed, lots of retraction) with no hotend fan, both PLA and PETG, fully enclosed (6mm PC and HPL/Trespa), with fully-soaked passive (heatbed) heating - and failed to get a heat creep jam. The prints worked fine. This was stock VC4 - rapido 2. The housing variant was not considered relevant because there was no fan at all. If anyone has a repeatable heat creep jam test protocol, please let me know!

1857 replies

RRCRat Rig Community [Unofficial]

•Created by tg73 on 10/8/2024 in #fix-my-print

Regular surface distortion pattern towards end of larger first layers VC4

Together with @mazas, we are pleased to publish the report detailing our lengthy investigation into this issue. The final Conclusion section also covers ongoing efforts. Enjoy! https://mazas-3d.notion.site/Vcore4-Gantry-Deflection-Measurements-12cc60bcd336803ea674c02af1b367ee

1857 replies

RRCRat Rig Community [Unofficial]

•Created by tg73 on 10/8/2024 in #fix-my-print

Regular surface distortion pattern towards end of larger first layers VC4

As per the pinned message here https://discord.com/channels/582187371529764864/1293322335545196655/1295834761021100114, it's caused by heat transfer from the hotend to the gantry. The effect varies according to the movement pattern of the toolhead. To check if this is the cause of the problem you are experiencing, you can temporarily try reversing (physically turning around) the hotend fan. There will be more news and potentially other mitigations for this soon.

1857 replies

RRCRat Rig Community [Unofficial]

•Created by dead_again on 12/9/2024 in #fix-my-print

first layer keeps getting worse while it’s printing

This is the definitive thread for this issue https://discord.com/channels/582187371529764864/1293322335545196655. Follow there for updates.

38 replies

RRCRat Rig Community [Unofficial]

•Created by MurmelMannen on 12/14/2024 in #fix-my-print

Wobbly/uneven walls

Always do this with a new orbiter 2.0, they often ship poorly aligned. The 2.5 only needs the lower guide adjustment https://youtu.be/8vf_gY5Qg2o?si=EKUELfnR3oHSgjNg

5 replies

RRCRat Rig Community [Unofficial]

•Created by Flo@GRNbms on 12/15/2024 in #fix-my-print

First layer problem

See if this https://discord.com/channels/582187371529764864/1293322335545196655 is your issue, and follow there for updates.

134 replies

RRCRat Rig Community [Unofficial]

•Created by JamesD3d on 12/27/2024 in #fix-my-print

https://www.orbiterprojects.com/orbiter-v2-5/Could this be the cause of all my extrusion issues?

No, this difference is not the cause of "all your extrusion issues". The 2.5 is an incremental improvement on the 2.0 and is a 100% compatible drop in replacement for the 2.0.

4 replies

RRCRat Rig Community [Unofficial]

•Created by tg73 on 10/8/2024 in #fix-my-print

Regular surface distortion pattern towards end of larger first layers VC4

Although it's worth noting that my current testing and refinement includes potential mitigations for other factors that are not discussed in this thread and AFAIK are not generally well known. But again it's to early to share details as more concrete evidence is required first, to avoid unintentionally spreading misinformation.

1857 replies

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