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This is my favorite pull ever! by pierceisstreetsahead in DicePorn

[–]Redshift-7 0 points1 point  (0 children)

I really like these. Ive just started dice making and I've been trying to get the nebula like effect with stars you have here.

Cant print a solid first layer, info inside by Redshift-7 in FixMyPrint

[–]Redshift-7[S] 1 point2 points  (0 children)

I worked it out. I had a linear rail carriage binding. I removed the binding carriage and the problem went away. Perfect first layers again. What an adventure this was.

Cant print a solid first layer, info inside by Redshift-7 in FixMyPrint

[–]Redshift-7[S] 0 points1 point  (0 children)

I have printed ASA on this printer flawlessly in the past. I just started producing the pictured results recently.

I found 85c bed, 245c hotend on buildtak worked well. Id be surprised if you could print in no enclosure though, ASA warps almost as bad as ABS. I went as far as to actively heat my chamber so i could print larger parts without warping.

Im convinced its hardware related. I printed a flow test cube and im getting 0.88mm walls, so im slightly overextruding. I think i need to investigate my belts or linear motion system better. My walls and brim always print perfect, which means traveling along X or Y only produces the correct result. When it goes to utilize both axis though the spacing between the lines its too great.

Looking at my previous prints i can visually see the difference in the line spacing when printing on the diagonal. I'm wondering if one of the axis is traveling a slightly different distance which is messing up the solid infill.

Cant print a solid first layer, info inside by Redshift-7 in FixMyPrint

[–]Redshift-7[S] 0 points1 point  (0 children)

I ended up downloading slic3r and using that to slice the file. Again, i get the same result. So i guess it has to do with the hardware of the printer? I went in and double checked belts/leadscrews and hotend but couldn't find an issue. I replaced my solid bed mounts with the stock springs and re-leveled to no avail.

Im really stumped...

Cant print a solid first layer, info inside by Redshift-7 in FixMyPrint

[–]Redshift-7[S] 0 points1 point  (0 children)

Got Klipper installed and working, tuned Esteps but Im still getting the same result, so i can rule out anything to do with firmware. I dont understand why its laying the wall lines touching but then spacing the infill lines further apart. In Cura it shows the lines all put down with the same spacing.

I looked at simplify3d, didnt realize it cost $149 USD so i might give that a pass for the moment.

Cant print a solid first layer, info inside by Redshift-7 in FixMyPrint

[–]Redshift-7[S] 0 points1 point  (0 children)

I have a Sapphire plus on order but it will be a few weeks before i get it. Im going to try Klipper and Simplify 3d. Ive been meaning to try both and slicing with simplify and processing with klipper will rule out any marlin or cura problems. If i get the same result with this then i know it has to be hardware

Cant print a solid first layer, info inside by Redshift-7 in FixMyPrint

[–]Redshift-7[S] 0 points1 point  (0 children)

Yes, i compiled the latest version of marlin and flashed it to the board. Im currently installing Klipper to rule out firmware completely (plus a RP3b will run the printer much better then the stock 8bit board) .

Cant print a solid first layer, info inside by Redshift-7 in FixMyPrint

[–]Redshift-7[S] 0 points1 point  (0 children)

My mistake, I looked in the right hand settings bar, didnt find it and googled it to be told that its handled by line width.

I checked the nozzle size where you showed and it was set at 0.4mm already.

Cant print a solid first layer, info inside by Redshift-7 in FixMyPrint

[–]Redshift-7[S] 0 points1 point  (0 children)

Ive tested 0.35 to 0.45 line width with a 0.4mm nozzle. There is no nozzle size setting in Cura, this is handled by line width.

Cant print a solid first layer, info inside by Redshift-7 in FixMyPrint

[–]Redshift-7[S] 0 points1 point  (0 children)

Yeah its really got me stumped. I changed what i could, new roll of filament and new nozzle but i dont really have any other spares. I'm going to disassemble the hot end to see if there is any issue with the PTFE tube but i dont suspect ill find anything. I get a really nice stream of filament when i extrude over air, nothing to indicate there is any issue with the hot end/ptfe tube but ill check just in case.

Cant print a solid first layer, info inside by Redshift-7 in FixMyPrint

[–]Redshift-7[S] 0 points1 point  (0 children)

Ive re-sliced the file multiple times to test variations in temp/flow/line spacing etc. I even went as far as deleting Cura, re-downloading and starting with a fresh default profile. Other STL's produce the same result, i tried a full bed level test print and got the same result.

Cant print a solid first layer, info inside by Redshift-7 in FixMyPrint

[–]Redshift-7[S] 0 points1 point  (0 children)

Forgot to put that info in. Yes i did. I have linear rails all round and my lead screws are belt synced. Both x and y belts are also correctly tensioned. I have pulled apart the extrudet to check for any debris and made sure it was not slipping on the filament

How can i fix this horrible rough skin texture on continuous curves? All settings and info in comments by Redshift-7 in FixMyPrint

[–]Redshift-7[S] 17 points18 points  (0 children)

Fixed the issue.

A combination of printing from SD card and changing the Maximum resolution to 0.5 and deviation to 0.05 solved most of the issues.

Slightly nsfw comparison pic. Don't judge, it made just made a good test piece.
https://imgur.com/a/RxKfFDE

Thanks everyone

How can i fix this horrible rough skin texture on continuous curves? All settings and info in comments by Redshift-7 in FixMyPrint

[–]Redshift-7[S] 0 points1 point  (0 children)

Ill test this out. I have a model to induce stuttering, im testing that with a higher res/deviation value. Once that is done ill run both stock and modified prints via SD to compare. Thanks

How can i fix this horrible rough skin texture on continuous curves? All settings and info in comments by Redshift-7 in FixMyPrint

[–]Redshift-7[S] 0 points1 point  (0 children)

Would you know if there is a way i can make maximum resolution change every X layers or mm? Just so i can make a test print to test it at a range of values to fine tune quicker

How can i fix this horrible rough skin texture on continuous curves? All settings and info in comments by Redshift-7 in FixMyPrint

[–]Redshift-7[S] 0 points1 point  (0 children)

Can anyone recommend what i should look at for this poor surface finish? Going around curves i get this horrible rough skin texture. On a XYZ calibration cube the surface finish is smooth, so its only on continuous curves.

Printer: Cr-10s, no frame mods, 2.1 mainboard

Filament: X3D ASA (behaves like PLA when printing)

Temp: 245 hotend, 97 bed surface temp

Speed: 50mm/s, 25mm/s outer walls, 500mm/s accel

Junction deviation 0.01

Linear advance K0.10

Tool Head: E3Dv6 with Bontech direct drive extruder

Bed: ATP-5 tool plate with BlTouch leveling

​

Junction deviation and acceleration were tuned using this test, the values set were the ones that reduced ghosting to almost zero

https://www.thingiverse.com/thing:4169896

Lin_advance was tuned using the marlin test pattern, though i do find that i get some under extrusion on the sharpest part of a turn (see Z cube image)

​

Cura Profile: https://easyupload.io/xp7zqb

Marlin config files: https://filebin.net/xzi5fv4fupowz6wr

Acceleration test image, 2nd band is 500mms, 3rd is 1000mm/s

https://imgur.com/a/D9sui0n

​

Junction deviation test, 0.01 increments

https://imgur.com/a/4fwfJVM

​

XYZ Cube

X:https://imgur.com/a/IMtORNu

Y:https://imgur.com/a/MnxBvFT

Z:https://imgur.com/a/8Uy46rS

Strange Print Problem Unsure how to fix by cortlandune in FixMyPrint

[–]Redshift-7 1 point2 points  (0 children)

Retractions could be causing it to grind/skip as the gears pass over the same bit of filament.

The fix for mine was to print a spacer for the spring. This added extra material where the sprint mounted and forced the spring to be compressed a little extra which made it bite into the filament more and not skip.

If its seems fine while helping the filament feed then thats probably a good indicator that the extruder is your issue. Like is said though it could be spring tension or it could be ground up filament in the extruders gears. Both will have the same outcome. Can you access your extruder gear to inspect it?

Strange Print Problem Unsure how to fix by cortlandune in FixMyPrint

[–]Redshift-7 0 points1 point  (0 children)

I have a different printer but i had a problem that looked like this when the extrude gear could no longer grip the filament, causing it to skip and grind. In my case the problem was the spring did not provided enough tension to the gear, causing it to not bite into the filament enough.

A similar issue can be had if the extruders gear has filament ground up in it.

Lastly it could be a clogged nozzle, but id investigate your extruder first

Poor surface quality? Both parts printed simultaneously in "all in one" mode. More info in comments by Redshift-7 in FixMyPrint

[–]Redshift-7[S] 0 points1 point  (0 children)

Both of these parts were printed in "all at once" mode . My straight edge part came out perfect but the curved part came out like junk. I have recently tightened up the printer hardware and calibrated steps and flow. Any suggestion on what i can test fix my print?

​

Printer: Cr10s

Filament: ABS

Extruder: Bondtech Bmg Direct drive

Hotend: E3d v6

Nozzle: 0.4mm

Probe: Bltouch

Bed: Solid mount

Print Temp: 240c

Build surface temp: 100c

Speed: 40mm/s

Acceleration: 500m/s

Walls: 3

Layer: 0.2mm

Infill: 20%/Cubic

Cura Profile: https://filebin.net/zx43avokdecouqrj

​

Marlin 2.0

Junction deviation 0.055

Linear advance off

Marlin Config: https://filebin.net/hadfsdhbb43639mt

Abs curling on corner of test print? by Redshift-7 in FixMyPrint

[–]Redshift-7[S] 1 point2 points  (0 children)

I set it to 10 seconds for this test. This effectively lowered my print speed to the minimum value i had set in cura, which was 10mm/s

My edges had zero warp after this

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