
j_keiter
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Thin wall or surface is broken or missing?
j_keiter replied to j_keiter's topic in Improve your 3D prints
Print thin walls works on an experimental model but not on the part I downloaded. Bizarre! I used .5mm line width with .4mm nozzle and Print Thin Walls checked. My experimental model has a 0 width then 0.1 then 0.2 etc. walls where circle holes are close to outer wall. Grateful for the help. CuraPrintThinWallsTest.stl sample_riser_LS10.stl sample_riser_LS10.3mf -
Thin wall or surface is broken or missing?
j_keiter replied to j_keiter's topic in Improve your 3D prints
What is the purpose of "Print thin walls". I've checked it's box and assumed it would print a wall thinner than my nozzle or line width. I hoped "Print thin walls" would print the .2mm walls as .5mm walls matching my line width. -
I have holes in part very close to outside surface such that there is a very thin section/wall/shell. I want Cura to create a continuous surface on the outside walls regardless of how thin they are. I noticed Special Modes - Surface Mode - Surface worked but then I had no internal fill geometry etc. sample_riser_LS10.3mf
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My print speed was too high based on www.printitindustries.com/pages/print-speed-calculator. Travel is 120mm/s. I already had increased Z acceleration and increased Z jerk to just tolerable. Retraction was and is scary fast. Still not printing very well but it appears the blob on sidewall is gone. It appears the retraction after z move was not an issue after all. I still think cura should fix though.
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I'm still getting a big blob as shown in pics attached. I still think you should ask developers to make change to allow retraction before z move. Sadly I must have some other issues that prevent me from giving you proof of fix. Sorry!
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Burtoogle, you are correct. The 'Retraction Minimum Travel setting at 6mm was preventing the retraction from occurring prior to z move. I reduced to 2mm and Layer 5 was now correct but Layer 9 was still wrong since it had an even smaller travel move than 2mm. "Maybe there is a case for allowing the retraction in that situation to help with the slow z change." You nailed it. Wish I knew how to do this. .3mf file attached. arm.3mf
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Complete Gcode file attached. LAYER:5 LAYER:9 LAYER:19 and possibly more do retraction after z move. Other layers are correct. ;FLAVOR:RepRap ;Generated with Cura_SteamEngine 4.6.1 Arm.gcode
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When I look at gcode it appears the layer change(move in Z) occurs before the retraction. FYI Z moves are relative mode. G0 F600 X143.508 Y149.923 Z0.8 ;TIME_ELAPSED:18.152899 ;LAYER:1 G1 F4800 E-6 ;TYPE:WALL-INNER G1 F4800 E6 Since my printer has a very slow Z move, I'm getting a blob as Z moves to next layer. I want retraction to occur before Z move not after. Thx Jason