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Jhawk6553

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Everything posted by Jhawk6553

  1. Solved. I figured out the issue. Somehow "Hole Horizontal Expansion" being set to 0.05mm was causing this issue... I think what was happening was the tangent points for the large arcs were being pushed out which affected the walls
  2. I am completely stumped by this one. Every single file that I slice in cura will have these random over/under extrusions on straight walls. The artifacts do show up in the print so it is not just a visual glitch in preview mode. Does anyone know of any settings that could cause this?
  3. The issue turned out to be my "Overhang wall speed" and "Overhang wall angle." I had them set to 50 degrees at 50% and the letters had small overhangs that the printer was adjusting the speed and therefore the flow. When I set those values to 90 degrees at 100% the flow changes went away.
  4. Seems to be a cura problem... Still not sure why these are happening though. The wall is 3mm thick with 2 wall line count. Ive tried adjusted my line widths, amount of walls, my wall speeds, flow equilzation ratio, wall accelerations/jerk. None of those settings seem to have any effect on making the flow in those areas consistent with the rest of the outer wall.
  5. Its not worth it. It doesnt even have a carbon filter in it to take care of VOCs. If I were you Id just buy a decent air purifier for half the price and call it a day. I have the air manager on my S5 but I still use an air purifier.
  6. @gr5 Thats exactly what I did when this happened.
  7. Is there a list of official UltiMaker retailers floating around somewhere? When I contacted UltiMaker support awhile ago, they sent me only sent me the website for FBRC8. Really appreciate the help and the reply!
  8. Yeah no issues with print quality. I just ordered new belts and bearings for the print head assembly. Pretty sure they are on their last leg too because I can see dark grey/blackish residue on the rails. Also do you know where I can purchase a new z-axis rod? I havent found an site that sold them. FBRC8 sells everything except the z-axis lol
  9. Lol no kidding. Still prints pretty flawlessly. Ordered new belts for all of the axis, bearings for the printhead assembly, and servo motors.
  10. Interesting... I am dealing with a noise problem as well. Not the same sounds and not sure who has it worse lol S5 Noise.zip
  11. The S5 is around 2.5 years old and has had a significant amount of use in that time. Parts are still coming out clean though. I'm assuming the stepper motors are on their last leg and possibly the bearings in the print head. What do you guys think? S5 Noise.zip
  12. Umm lol are you a bot or did you misread my comment?
  13. Out of curiosity, what hardware issues are you having?
  14. @MariMakes I do set my infill to 0 and my top/bot to 0 as well. But ive never tried to print a lithophane with only 2 walls. Im not entirely sure how well thatll work because the color depth is created by the light being absorbed by the varying thickness of plastic. Although in the case I listed above, it still wouldnt make too much of a difference because the thin wall was printed between the 2 outer walls so it would still fall in that 2 wall line count. I do think these varying line widths are crazy for engineering prototypes. Look at the picture below. I designed a calibration print originally for lithophanes to test how well the printer can capture different horizontal depths in the image. Each shade is 0.1mm thicker than the previous. Notice on Cura 4.x the shades are grouped in 4's. With some adjustments of the new Cura 5+ settings I was able to get the complete contour and all of the shades measured exactly +0.1mm from the previous. However, the new settings did not work well for an actual picture lithophane as well as they did for this calibration print. I think it worked well in the picture below because the transitions are very gradual from one step to another. In a picture lithophane, the corner transitions from lights to darks are much more harsh and erratic. And because the new settings are letting the flow be adjusted to vary the line width, I think the printer cant keep up with the corner transitions in a lithophane. A high jerk value could be used but mine is set to 20 and still had issues.
  15. @MariMakes Thank you for the reply! I actually have it sort of explained in this post. Im printing a lithophane and I noticed that the white sections had these weird artifacts that you can see in the picture below. I then looked at the layer view and saw that the printing order is out of wack, even though I had it set to "inside to outside." It was trying to print a thinner inner wall between two outer walls after it had already printed the outer walls. It was only happening on the thin sections where it had to reduce the line width to get a 3rd wall in place. Areas where the inner wall didnt have decreased line width printed in the proper order, inside to outside. I think the heat or drag of the nozzle between the two outer walls was causing these weird artifacts. I havent tried to mess with the "odd" wall line width though. Would be nice if you could just set the tolerance of the variable line widths to say +0.1mm and -0mm instead of its current +-0.1mm. Unfortunately changing the Wall transitioning threshold angle didnt work. I did "fix" it by increasing the outer wall line width to 0.45mm and decreasing the "Wall Transitioning Filter Margin" to 0.1mm from 0.2mm, increasing the "minimum wall line width" from 0.25mm to 0.3mm and disabling print thin walls. However, the flows was no longer a uniform color after slicing it and looking at the flow color scheme. .
  16. Using Cura 5.2.1. Is it because the final middle wall is a smaller line width than the outer wall? Still doesn't make sense that the smaller inner wall line would overwrite "Inside to outside." Its adding a bunch of unnecessary travel moves and is ruining the outer wall quality on my lithophane when its trying to generate these inner most walls.
  17. @MariMakes Im unsure at which setting to adjust to achieve the same outcome that the old setting "fill gaps between walls." It looks like a combination of all of these while simultaneously none of them. Say I have a "line" that's 0.25mm long and 0.4mm in diameter. It is essentially a tiny dot that would otherwise get ignored with the old setting. How would you adjust these new settings to ignore that size of "gap or line" without giving the printer thumbs up to go all wild with the line widths for all of the inner/outer walls? The flow rate sounds like it could vary like crazy and potentially give someone extrusion issues. I do love the new settings and their potential. I'm just not convinced that they are a solid substitute for the old way of ignoring gaps.
  18. Im guessing that either the pcb on your print core is bad or the one on your print head is bad unfortunately.
  19. Printing with an Ultimaker S5 using Cura 5.2.1. The issue Misaligned outer walls when printing a straight outer wall on a lithophane. At first I thought that the issue was a mechanical one. So I tightened the belts, cleaned the Z axis rod and re-lubricated it, re-lubricated all of the linear rods, cleaned the print head, got a new print core, dried my filament, cleaned out my extruder and re-lubricated it. However none of these solved this issue. The white sections of the lithophane are nominally 1mm. Now I am pretty certain that the issue is actually Cura related. After slicing, I just happened to zoom in to a random spot in the white area and looked at it from a upward angle and this is what I saw: From other angles, this misalignment is not visible. I am starting to believe this is the issue. Here are my settings. Please let me know if anyone has any theories or have any questions regarding my settings.
  20. So I am currently dealing with this issue however it is not nearly as severe. After hours of research, Ive yet to conclusively come up with a solution but I am still working on it. Ill break my theories into two categories, mechanical issues and settings issues. After looking at your pictures, Im leaning more towards it being a loose belts. If anyone has anymore to add or would like to correct me if I said anything wrong then please do! Settings Temperature fluctuations Fluctuations in temperature can cause the filament to come out at varying stages of fluidity. You can see if this is what is happening by looking at the print core temps while printing. Printing too fast If you do have loose belts and are printing fast then there is an increase in likelyhood that these mechanical issues will start to affect your quality. Slow it down and see if that makes a difference. Try to reprint it with the infill speed, outer wall speed, and inner wall speed all set to the same value. Maybe 30mm/s. Flow rate may need to be tuned. Print a square with 1 wall, no infill, and no top/bot layers. Measure the wall with a caliper and you should get the value you have set for your line width. If you aren't getting that value then find a flow calculator online and it will tell you the value you need. Mechanical Z axis screw not clean/lubricated properly. Inconsistent filament diameter Any fluctuations in diameter of the filament can cause inconsistent extrusions Belts too loose. Linear rods not lubricated. Should be done monthly after the first year. Bad bearing on one of the axis This one is unlikely but still possible. Bad PCB on print core which causes temperature fluctuations Also pretty unlikely but possible
  21. Yeah Im on 7.1.3 and the issue still is occurs unfortunately.
  22. Its all good. Thank you for the information!!
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