choochooenthusiast
Involved Member
Building a 3D printed Crab 13065. A wagon (or a few) in the works.
Posts: 70
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Post by choochooenthusiast on Jan 8, 2023 9:29:59 GMT
Calling all printers! Since I've been back I've been trying to print the LH cylinder for my Crab. I've had a few fails including a blob of doom.  These are a nightmare to clean up so lucky I caught mine pretty early. I tried to do a first layer calibration and it came up like this...  Not really sure what to make of it or what to do. Any help would be much appreciated, up to this point I've had no issues with the printer so this is new territory. I will try to print one more time, fingers crossed. Cheers, C |
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choochooenthusiast
Involved Member
Building a 3D printed Crab 13065. A wagon (or a few) in the works.
Posts: 70
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Post by choochooenthusiast on Jan 8, 2023 23:31:26 GMT
I’ve run another print using newer filament which seems to have done the trick. I’m still not entirely happy with how the first layer is going - I’ve had better but I’m just happy I can still print.
I think it is time I gave this machine a proper service.
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Post by simplyloco on Jan 9, 2023 10:08:12 GMT
I’ve run another print using newer filament which seems to have done the trick. I’m still not entirely happy with how the first layer is going - I’ve had better but I’m just happy I can still print. I think it is time I gave this machine a proper service. If newer filament is OK then I would suspect excess moisture content. My Prusa is used rarely these days, and reels go into the airing cupboard for 24 hrs before I print... John |
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choochooenthusiast
Involved Member
Building a 3D printed Crab 13065. A wagon (or a few) in the works.
Posts: 70
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Post by choochooenthusiast on Jan 9, 2023 12:18:32 GMT
Thanks John I agree. Next project, build some filament storage that is a bit more airtight.
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Post by simplyloco on Jan 9, 2023 20:10:26 GMT
Thanks John I agree. Next project, build some filament storage that is a bit more airtight. You could get some small vacuum bags as used to hold clothing. Much easier, and cheaper too! |
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darrene
Part of the e-furniture
Posts: 440 
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Post by darrene on Jan 9, 2023 20:19:24 GMT
Sorry to read of the printing gremlins Connor. It's pretty depressing when the machine has been performing faultlessly for so long and then starts playing up. You just know there's likely to be several hours of wasted time in getting to the bottom of it...
It's reassuring to hear the new filament has relieved most of the problems. As John mentions, it could just be moisture or another issue in the filament you've started to encounter.
Given the high hours and pretty constant(?) printing your machine is doing, a service may bring some benefit too.
I had an issue on my old Ender that I realy struggled to get to the bottom of. It went from printing faultlessly to printing a few layers fine and then either blocking or underextruding. None of the temperature or cooling settings had changed, the slicer was the same, different filaments behaved the same - I started replacing hot ends after pretty much every print as I'd get a print out and then it would start happening. It seemed in the end to be an issue with the bowden tube it uses. it was a disheartening experience at the time as I never seemed to get the time to commit to get to the bottom of it and the overwhelming sense was of the loss of progress being made with both the unwelcome problem and being able to print anything reliably.
I have a feeling you print with a Prusa Mk3s? If it's only the first layer that's an issue I'd be tempted to live with it for a bit or to recheck the bed rather than disturb too much but if you're not happy with subsequent layers and it's occuring on fresh filament it may be worth planning in some downtime to give it all a thorough clean through and check of the bowden tube/hot end interface, then running a few small test prints through it.
Best of luck!
Darren
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