Black and White Miniature Roombox on the Prusa XL!!!
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- Опубликовано: 24 авг 2024
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Not sure exactly why your getting the black line, but you could try redesigning your room box as two separate models (inner and outer), and then import the two models as one aligned model and make them black and white and ditch the paint tool all together. Little extra work in the beginning, but once you have the files, you'll always have them for future prints.
Yeah that does sound good. Thank you!
I would use small fillets or chamfers in the drawing in your cad program where the black lines appear.
Ok thank you!
The latest alpha of PrusaSlicer 2.7.2-alpha2 fixed „spilled layers with multi-material segmentation“. They claim, that they „reimplemented a significant part of multi-material segmentation from scratch, which, together with the changes above, should resolve all issues with spilled layers for multi-material segmentation.“
I don‘t know, if that is your issue, but it might be worth a try.
Ok thank you!
Really happy to see you are making progress with the XL! I'm still customizing mine and then will slowly start ramping up the color and filament swaps. I'm fortunate that I don't need it for a business, that is a lot more pressure. I think the XL is a great printer, still impressed wit the build quality and Prusa support
Great to hear you're happy with yours afterall!
@@tada3dprinting Working through all of the issues and getting it running slowly. I found a lot of improvements to the Nextruder cabling and grease application on the 3 front pins. I have printed a lot of add on parts and sent a set to you. See what you think. I have found it worth the time to go through the alignment process if anything is changed.
I bet if you pull the file into meshmixer and separate solids you’ll probably find that it’s a square floor, and a square tube walls, but they weren’t joined correctly
Probably something like grouping instead of a Boolean union
Ok, thank you!
Along with the white panel, you can try using some white paint or something similar to mask that one line that seemed to show.
True. Thank you!
What a great video, I love how you are going into details and checking different solution ideas, although it is still a weird behaviour. 🙂
Sad to see that the XL did some black marks on the white inside... lucky for him / you that the carpet covers it.
Thank you!
try checking the line width in the preview tab. my guess is that base layer has a wider line width than the rest
or try setting the line width to the same value for all perimeters.
Ok I'll check. Thank you!
The 2.7.2-alpha 2 fixed this issue. I tested it.
Another idea is to design a two part modell.
Than you can really define which parts are in which color.
With openscad souch a geometry is very simple to create.
Ok I'll try it. Thank you!
That box looks really nice. What a great finish.. That black line issue sure seems like a slicer error. Probalby something in the shared Prusa slicer base code.
Thank you! Yeah still some quirky things to figure out
Instead of printing a separate piece, maybe, in the slicer create a solid white object that is 0.2 mm larger in all dimensions than the inside of the back wall and then do a 'combine' so the slicer treats it as one object. That should cover up the strange lines.
I am curious what the zoomed in layer lines looks like in the preview where it prints those unwanted lines.
I did bring in another piece as a base, but I didn't click combine. I'll check that. The preview shows it completely solid white in the inside. Thanks!
It could be an issue with the number of perimeters you have set. You can try changing that to one or two to see if it goes away.
Also, you may want to redesign the box so white part and the black part are two separate models.
Ok thank you!
When painting try the Gap Fill
Thank you
I just printed something similar and it has a distinct line where the floor meets the walls AND it all one color.
I designed the print in FreeCAD and sliced it with Prusa Slicer 2.6.1.
At first I thought my print shifted, but the line goes all the way around the four vertical posts (like your walls). I suspect if the post were supposed to be a different color that line would be the color of the floor and not the post.
If you want to try print it in multi-colors, I'll send you the STL.
Thank you! I'm sure that's probably the issue. I may try pulling in a box without the back and then the back separate and see if that helps. Thanks!
@tada3dprinting I wish we could put pictures in our replies.
Small fillets or chamfers don't help, its a quirk of how slicers assign the materials. It doesn't realise that the inner wall has to be built on top of the same colour base...
The work-around is to have two boxes, as separate objects, inside each other. The inner box will then be sliced correctly.
In Fusion360, create a solid box with correct outside dimensions. Apply "shell" command to hollow it with wall (shell) thickness half of what you want. Now Extrude the inner bottom face to re-fill to hole, but select "New Body" to create a new part. Apply Shell to this as well. You now have two boxes, one inside the other. Export as 3mf. Load into Slicer as one object with multiple parts. Assign inside and outside colours to each part and Paint the front edge of inside part to match outside..
Ok I just use tinkercad but I'll see if I can do something similar. Thanks so much!
This is a problem with "painting" the multi-material colours in the slicer and how it processes the offset from the surface. PrusaSlicer (and Bambuslicer which based on the same source) don't compute the additional perimeter (or two, depending on the material) required at the top layer to hide the second material. PrusaSlicer 2.7.2-alpha2 has the same problem, the new fixes were more to do with other similar issues.
For your issue i found that it is easy to insert a "slab" in PrusaSlicer as a part and overlay it in the position of the offending surface. The slab should be 1-2mm wider than the surface, enforcing the extension of the selected colour/material through the perimeter at that layer. The thickness can be 1mm, but positioned so that the top of the slab aligns with the top of that surface (for a 5mm thick base and 1mm thick slab, the middle height value would be 4.5mm).
Simply adding chamfers or fillets doesn't help as the material painting process just shifts the offending perimeter over. Prusa or the developer community really need to add this to the next slicer update.
For more complex shapes, separating the model in CAD is best. I've seen other issues with the painting tool that result in excessive material wastage (due to multiple unnecessary solid layers), as well as similar issues with edge/perimeter generation. In your case, a parameterised model would be easy to make, allowing you to ensure consistent printing for your business.
Ok I'll check it out. Thanks so much!
Try the latest PrusaSlicer alpha. They mentioned something about multimaterial bleed in the slicing.
Ok thank you!
That looks great with the carpeting and base board, even with the weird anomaly where the walls meet.
That must be a model issue as it shows in both slicers.
Looks like you are dialing that XL and getting good results.
Thanks so much! Boring prints like this are printing well. The black line seems to be a slicer issue, not a printer issue. Thanks!
I'm really glad to see the XL is working for someone. Had mine for 3 month;s and can't print yet. Lots of email to Prusa and still not working. Loosing confidence. I beginning to think I got a lemon and it's time to send it back. We'll see. At least my MK4 is working like a charm.
That's so frustrating! Is it not printing anything? Or just struggling with some prints? Glad your MK4 is going good! Thanks!
Not had a mm of filament hit the bed unless I'm purging. Every step in the calibration process error-ed out and required emailing Prusa. A couple of suggestions and one new filament detector (new part was wrong too) and just disconnecting and reconnecting this-and-that multiple times I finally reached a point I could attempt first test print. (not a kit) No good, after 15 tries I get "Nozzle Cleaning Failed". Other than purging which it does flawlessly I can't imagine why it needs cleaning but that's where I am. Email and video sent off to PRUSA so we'll see what's next. Loosing hope and any confidence that it will work at all. Sorry to pull your ear. @@tada3dprinting
That's so frustrating! Is it possible to ask them to send you another one and ship back this one? I've wondered that myself. But got tired of getting on chat all the time. My boring prints are working ok so I'm trying to figure out what the difference is. Hope they get you fixed up quickly! Thanks!
This is a very interesting issue. I hope you find a solution.
Thank you!
One solution might be, not to use multicolour paint. This did also not work for me. I design the parts with a different colour in CAD and turn them in a modifier in Prusa slicer. Set the infill to 100% and you will probably get the result you want.
So design the whole room as one body. Extrude a second body (the colour modifier) to the inside (this should overlap with the first body). Export both bodies at the same time either as STEP or 3mf (I use Fusion360). Import the file in PS and change the second body to type "modifier" and adapt the infill. If you use a bright colour you will need 3 or 4 layers to get good results.
Also the 0.6mm nozzle might cause the problem, as some parts maybe to small to get them printed. Especially areas, where the colours meet.
Oh that's interesting. I'll see if this helps. Thank you!
Print black box, design smaller white box, superglue the black inside and slide white box into the black box. :shrugs: Done.
True. Just wanted to try out the multicolor since I have it. And it eliminates printing multiple white boxes to get the sizing. Thanks!
What are your thoughts on this printer now? I need something with a big build volume. Is it worth the extra dough compared to the Neptune 4 etc.
There were days (early on)that I was close to sending it back. But today I am happy with it. Large build volume is amazing. Multi color prints are fast and minimum waste. But complicated prints for me, are still hit and miss. Simple designs like this and a shower I'll post Saturday are great. I print more boxes than dragons. So it works for me. I don't know anything about the Neptune. But Prusa in general has good printers. Thanks!
Did you try different tool type other than smart fill?
Yes, no changes. Thanks!
What scale are your "rooms"?
I work mostly in 1:12 and 1:24. This was 1:12. Thanks!