BrayChristopher
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Posts posted by BrayChristopher
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Does anybody print PETG with the Ollson block?
What settings do you use.
Help please.
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Do some atomic pulls or cold pulls whatever it is called. If that doesn't work try a new 0.4mm nozzle (if you have one laying around).
https://ultimaker.com/en/resources/19510-how-to-apply-atomic-method
What kind of PLA are you using. 210C sounds right from most PLA, but I know MakerGeeks PLA prints at much higher temps. And I have heard of some PLA that prints at 190C.
I use this spiral thing to help with bed leveling.
https://www.thingiverse.com/thing:2996315
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I think you need to tighten the front screws to lower the front of the bed.
Are the front screws bottomed out?
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Ridiculous. You sir are a mad man.
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Can you post the file?
Or at least a picture of the part?
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I am using the Micro Swiss Wear Resistant Nozzle, which is a brass nozzle with nickel composite coating.
I did re-level the bed.
I did not tighten the nozzle while it was hot.
Bed adhesion doesn't seem to be the problem.
And I am not getting any leakage between the nozzle and the Olsson block.
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We have an UM2. I finally upgraded the hot block to an Olsson hot block and Micro Swiss Wear Resistant Nozzle.
Of course, now the UM2 and I look like we both forgot how to print things.
I had to raise the temp to print PLA. Is this normal?
PETG is making me lose my mind.
I used to get good prints like this.
Now it looks like this
It is hard to see, but the hairs and bumpy surface happen where the "base" of the part stops and the "walls" start.
It is easier to see this on this larger part.
Here is a section view.
I am using Simplify 3D and always have. Same materials.
I didn't change any of the settings during this print.
This artifact does not align with the layer that the fans start (50%).
Any ideas??? Please and thanks.
Also, I was getting temp errors so I wrapped up the hot block in ceramic wool. Is that normal?
Is there a magic nozzle that doesn't stick to PETG?
Gross.
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It also might be time to swap out the Teflon collar above the nozzle.
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8 hours ago, stuc3386 said:
BrayChristopher - were you able to solve the shifting? If so, what was the culprit?
My issue was not loose set screws on pulleys.
For some reason, my linear rods get "sticky" over time. I have NO IDEA why. The printer sits 10 feet away from me in our office. And I have an acrylic enclosure for it.
So every once in a while I wipe the smooth rods down with acetone and then apply a little sewing machine oil.
I don't know if this is part of the problem or not, but I have also taken some steps to keep the motors and electronics cooler.
I keep the printer up on feet.
https://www.thingiverse.com/thing:966936
I made a "mesh" enclosure for the electronics to let them breathe easier. And I added a cooling fan.
https://www.thingiverse.com/thing:2512743
I took the stepper motor covers off and left them off.
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[print=4719][/print]
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[print=4719][/print]
I made an enclosure for the UM2 controller board that should allow for more air flow.
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Here is a printable design similar to the Sanjiu feeder.
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That feeder design does look intriguing...
I am still running the stock UM2 feeder (not the 2+ feeder) and I am pretty happy with it.
GR5 has a different feeder here: https://thegr5store.com/store/index.php/meduza-feeder-upgrade-kit.html
Also, I keep my spool on a free-spinning spool holder, so there is no resistance from that end. Also, I keep my spool below the printer so that the filament travels straight up into the feeder (no sharp turns).
Good luck man.
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Test #15: wsdukai sent me screen shots of his S3D settings. I tried to match them as close as possible. This is probably the second best result so far, behind the S3D g-code.
https://docs.google.com/presentation/d/1PQTE_3DOOy1PPGaZczAN5jfSrY2eFVYlTTeXGuAGlFg/edit?usp=sharing
I think the big differences were the reduced flow rate (extrusion multiplier), and the "retract before outer wall" turned on. I might run some tests to isolate them.
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Ok, in case anyone still cares...
https://drive.google.com/drive/folders/0B1EXozPH_tWbQVdXTkJuYU16ek0?usp=sharing
Test #6: Another X-One owner sent me his g-code file from S3D. PERFECT results. So now I know MY x-one can do it.
Test #8: I slowed the retraction speed way down. Beautiful parts with a beautiful "angel hair" wall.
Test #9: I turned the heat down to 180c. Not so good.
Test #10: I upgraded to Cura 2.6.1 and ran basically the stock PLA settings. One of the towers fell over and there was minimal blobs.
Test #11: I turned on Coasting. All the towers stayed up, but I think the blobbing got a little worst.
Test #12: I turned on Z-Hop. Perfect "angel hair" wall again.
Blah. I think I will go back to the #10 setting and fiddle with some stuff, but leave Coasting and Z-Hop off.
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I ran another test based on the setting recommended by this article: https://ultimaker.com/en/resources/19504-how-to-fix-stringing
https://docs.google.com/presentation/d/1XglSCqLKsF0TLDiXUOytxGmjidmCoWY2NYEl_xLzag4/edit?usp=sharing
It did not solve the problem. I killed it mid print because one of the towers fell over and nothing good was happening anyway.
Blah.
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I am using Cura to slice files for the Qidi Tech X-One printer.
I can't seem to get the stringing under control.
I have tried a lot of different combinations of settings. See the link below.
https://drive.google.com/drive/folders/0B1EXozPH_tWbQVdXTkJuYU16ek0?usp=sharing
Test #6 was sliced with Simplify 3D and it looks perfect. Someone from Thingiverse sent me the G-Code. He said it was the stock S3D settings, nothing special. He is going to send me screen shots of the settings eventually.
I believe Cura can do it. I think I just don't have the right settings. I want to use Cura because.... well it is free. And it has some infill settings that S3D doesn't have. And it has the Alternate Extra Wall setting that I think is really nice.
Thanks in advance.
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Start with Ultimaker brand filament. Once you have everyday success with that, then branch out to other filaments. You want to reduce the number of variables.
Get a small desk fan. I point this at the bed after prints are done to cool them down faster. Then they pop of them glass. Be patient. If you are wrestling prints off the bed all the time, then you will be spending a lot of time re-leveling the build plate. Be patient.
I print on glass with some glue stick. That's it.
We have our printer set up on a rolling cart. On of the heavy duty plastic ones. You might want to use a wire rack shelf/cart instead. This will let the under side of the printer breathe easier.
https://ultimaker.com/en/community/26114-dramatic-layer-shifts?page=2&sort=#reply-164290
https://www.youmagine.com/designs/ultimaker-2-extended-enclosure
Get some extra PTFE couplers.
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I had some adhesion issue too printing with Ultimaker PLA with no brim on just the glass. I bought the BuildTek flexplate system and it works great! Now I don't print with brim at all.
Did you apply the magnetic base to a glass plate? Or did you apply it directly to the heated bed?
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Does anyone have experience with either of these magnetic mounting build plates?
https://www.geckotek3d.com/ultimaker
https://www.buildtak.com/product/buildtak-flexplate-system/
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We have an UM2E and it is giving us a Bed Temp Error.
I think that is the problem.
Is there any chance it is just the wire and the heated bed is still fine? The replacement wire is only $20, but the wire and bed together are $200.
Also, fbrc8 is out of stock of the cables. Is there anyplace else to get these in the States?
Olsson Block Help
in Improve your 3D prints
Posted
In case anyone was wondering, it seems that canola oil has solved my problems... for now.