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Post by guillermo on Sept 5, 2017 12:04:39 GMT
Hello everyone!
Hope you are printing fine !
I'll describe you my problem, so hopefully you could guide me to a solution...
I was making a circular piece for a coffe machine (imagine 130mm x 30mm cylinder walls).
Designed the piece in Blender, export the stl to Cura, prepare the gcode... but then the problem begins:
Around the 2nd or 3rd layer my print starts to travel in the X axis, at first I thought that could be some screws loose, but I tried and the problem persists.
I also try a different 3d model and works fine, and scaling the same circular object to make it smaller and works perfectly...
I really don't know what's going on, is there any configuration or something for large circular objects that I'm not doing in the correct way?
My set up prints are:
Layer height 0.2
Infill 20%
Speed 20mm/s
195º nozzle and 62º bed
No supports only raft
Working with black PLA
Thanks to everyone that takes time to give me a hand!
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Post by kioskfan on Sept 5, 2017 15:01:48 GMT
That's a strange one for sure. Maybe your file got corrupted, did you try to reslice the file?
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Post by guillermo on Sept 5, 2017 15:30:41 GMT
Yes, I tried with cura and Slic3r, the results are the same... A friend told me that could be the X motor driver, giving low amount of current but I really don't know how to set that in the correct way, I don't hace a chart or something like that to set it up... could it really be that? I printed a xiaomi case last week that is also big and didn't have that issue...
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Post by kioskfan on Sept 5, 2017 16:13:45 GMT
You'd think that if it were motor current it would fail with all prints?
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Post by guillermo on Sept 5, 2017 16:22:41 GMT
That's the same idea that cross my mind it should fail always, its true that a circular object has more travel around the x and y axis they're working at the same time... but I don't fully understand why a scaled object works fine and the original with the same settings doesn't...
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Post by tanephar on Sept 5, 2017 20:39:14 GMT
It sounds more like a problem with the model, a corrupt surface or such like, you need to inspect the model for errors, before exporting to stl. If other models are printing fine, then that is what I would be looking for, particularly since you have used different slicers with the same result, Scaling the object would reduce the problem, if you get my drift. I don't know if you can inspect the model in Blender. All models need to be error free before exporting, always keep that in mind.
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Post by guillermo on Sept 6, 2017 6:06:57 GMT
I followed your advice and redesigned the model in 3D Builder, and is not showing any errors on the model.
Exported it to stl and the results are the same... Do u think it could be some issues with the slicers I'm using? (Cura and Slic3r) or any settings for this kind of objects that I'm not aware of?
I'm kind of lost really...
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ralf
Junior Member
Posts: 93 
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Post by ralf on Sept 6, 2017 9:28:54 GMT
Try to rotate the model 90 degrees on the z axis and build it again. If the problem moves from the x axis to the y axis it shouldn’t be a hardware issue. If you can upload the Stl and the cura slice file on thingiverse I could check the stl and let the slice file run on my machine.
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Post by tanephar on Sept 6, 2017 12:02:09 GMT
Likewise for me upload the stl so I can run it and see what happens, if it prints fine on another couple of DP5's it could be a problem with the X,Y calibration on your machine, have you run any kind of calibrations on your printer?
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Post by kioskfan on Sept 6, 2017 13:37:46 GMT
Likewise for me upload the stl so I can run it and see what happens, if it prints fine on another couple of DP5's it could be a problem with the X,Y calibration on your machine, have you run any kind of calibrations on your printer? That's a good idea. |
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Post by guillermo on Sept 6, 2017 14:18:29 GMT
I never run any kind of calibration... could you explain me that? Really don't know what that means... I'll upload the model as soon as I can and post the link here so u can try anyways...
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Post by guillermo on Sept 6, 2017 14:20:26 GMT
The only thing I did was print a calibration cube, the classic x y z cube, but I don't know if that's what you mean. If is that the print is correct, I did one the day of my issue to check if it was a general problem or not.
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Post by guillermo on Sept 6, 2017 15:44:15 GMT
I couldn't upload it yo thingiverse because it's my first post and I'll hace to wait 24hours. mega.nz/#!R7olHT7C!6SH_Y5Ez9KYss6_g19PR7Jy3I8Dv4rBl4Rmrej8EgCo Instead I upload it to mega, its a zip containing the stl and gcode I'm using... let me know if anything comes out. Thanks again |
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ralf
Junior Member
Posts: 93
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Post by ralf on Sept 6, 2017 17:32:09 GMT
 Ok, i had a look at the stl, very odd tessilation. I’m quite sure that the stl export settings in your software might be the answer. Look for maximum triangle size, should be reduced.... This was just a quick check, tomorrow I will rebuild the part and put it on thingiverse, then you can try it again.... |
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Post by guillermo on Sept 6, 2017 17:42:22 GMT
I'll check that, and I'll wait for your upload too! Thanks a lot!
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