😮 It's So Simple - 3D Print Blobs And Zits - 3D Print Troubleshooting
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- เผยแพร่เมื่อ 31 พ.ค. 2024
- 😮 It's So Simple - 3D Print Blobs And Zits - 3D Print Troubleshooting
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Changing one setting removed all blobs and zits in the corners for me!
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0:07 How i fixed the blobs and zits
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Thank you…and your choice is music is excellent!
You're very welcome!
I have a ender 3 with the sprite...I use 0.4 retract at 30mm/s and zero on prime. I never have any issues...using cura. Works very well for me.
Great!
Thanks for the tip, I'll give that setting a go. Default seems to be 0 (in PrusaSlicer) and most of my prints are coming out fine, but I have noticed that with certain filaments and objects, crap tends to accumulate on the nozzle or the work piece. It only happens around places with many retractions ("tree" supports, or embossed lettering on an object) so maybe it's the deretraction causing this.
You're welcome! I think you're right.
Thank you! It's so obvious, but I never checked, also WIPE move is important! :)
Thank you too!
Nice
Thanks!
Im using a longer lk5 pro upgraded and i get the blobs a lot it does tend to apear more commonly on smaller prints and this is my first rodeo with a 3D printer also i use cura and i cant find the extra reastart setting
Maybe you could try to enter a negative number for 'Retraction Extra prime amount'? I never use Cura, but Simplify3D.
Like he mentioned in his reply, it's called "Retraction extra prime amount" in cura. Different name, same exact thing. Unfortunately different slicers use different terms. I usually set it at 0.2 or 0.3 on my SV01. The weird thing is, sometimes larger numbers help, sometimes smaller. But usually less than 0.5 is the ticket for me to fix this issue. You may also want to look into setting up "linear advance".
Isn’t that the seam?
It is
The blobs were on all the 4 corners, so it also occurred outside the position of the seam.
But the setting you adjustet does only affect the seams or parts where there has been a retraction beforehand in general.. and if u don't use retraction on z hop or something similar then it can only be the seams. Do you use seam at sharpest corner setting? Cuz then it could have seams in all corners. If u use seam at a specific place e.g. the back or something then it would indeed indicate blobs outside of the seams
But reducing blobs at the seams is also a noble quest in achieving higher quality looking prints so nothing wrong with that IMO
Yes, that’s why I use aligned or paint the seam, at least that way it looks like a manufactured seam than just a mess
And what do I do if my slicer allows only positive values of Extra restart length?
Then I don't think this option is so valuable in my opinion. There will be too much filament after each retraction when the value is positive.
What slicer are you using?
Hi, I use Simplify3D!
What slicer is this? Thanks
I use Simplify3D for my prints.
1:17 LUL 0,02 to 0,20 or 0,20 to 0,02 This is the question
0,02 to 0,20 gave the better result. This was indeed not right in the video, which shows the opposite.
Extra restart distance is always wrong. It should be set to 0 and the option should not even be there in the slicer.
Can you explain why?
@@3DParts4U Because it produces more overall extrusion (more volume/mass of plastic) than what's intended to be there, and the amount by which it's excess scales with the number of retractions. If you just have big parts with few retractions, it likely just all ends up hidden in infill void. But as soon as you start getting small layer components with little or no infill space, that excess will accumulate and build outward or upward. I've helped folks trying to print articulated dragons and stuff experiencing repeated nozzle collisions and joints fusing, only to find out eventually they were using this "extra restart"...
What's good to know is that my extra distance is a negative number in this video. So less plastic is pushed out of the extruder than what was retracted. A positive number will probably not useful indeed. More plastic will be pushed out each retraction then.
@@3DParts4U Well negative will do the opposite: accumulating under extrusion. Depending on geometry, it will prebends small parts from getting extruded at all, and then the nozzle won't be primed for the next part either.
@@daliasprints9798 But I think atleast in his example there is no sign of under extrusion at all. Lines are stacked nicely after the (now smaller) zits.. indicating there is enough extrusion still. Mathematically there should be underextrusion but maybe it is now 'pulled' on a larger length of extrusion and it's not visible or something along the lines..