0-7.5mm Self adjusting retraction lenght test, ready to print.

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This is a ambitious test to find the right amount of Retraction lenght, it is so many levels on it, so one test should be enough IF picked right area. What is Retraction anyway ??? read this https://all3dp.com/2/3d-printer-retraction-speed-what-does-it-mean/ Bowden demands more, choose 3.5-5.4 if you dont know where to start Direct drives, like the one cr10v3 has, demands less, choose 0-2mm Information also in the pictures. Different temps to choose from.. but if you want to change. Ex, change to 210 / 65. Open the file in notepad, search for M104 ..and you will find: M140 S60 (bed temp) S value to 65. M190 S60 (bed temp) S value to 65. M104 S200 T0> S value to 210 M109 S200 T0> S value to 210 Ctrl+S = save. Done. -20 levels, 0.1mm more retraction each step. -41 minutes print (25mm/s most part) -150mm/s travel speed, normal to use. -Placement, pretty close X Y home, so it works for most print bed sizes. 3 different tests (the STL, does not have any settings for this, if you dont know) 0 - 1.9 g code direct drives 1,5-3,4 g code also bowden, less common value 3,5-5,4 g code bowden Below is just information, you not need to add or change anything. Just confirm its good for your setup. If you not want another temp you have to search the 3x M104 S20x and change to what you want. Or you can do a similar test your self, with s3d, but its pretty time consuming. Files: (all have air priming, you need to take the filament that comes out when this happens, with a plier under the 3seks you have) No BL uses this g code in start: G28 ; ...... G1 X10 Y10 Z40 F3000 ; prime position G1 E60 F2500 ; 60 mm prime G92 E0 ; reset E G1 E-3 F2000 ; 3mm retract G92 E0 ; reset E G4 P3000 ; 3 sek pause M117 Stringtest ; __________ UBL Unified Bed Leveling uses this g code in start: G29 A; G28 ; G29 L1 ; G29 A ; G29 F5; G1 X10 Y10 Z40 F3000 ; prime position G1 E60 F2500 ; 60 mm prime G92 E0 ; reset E G1 E-3 F2000 ; 3mm retract G92 E0 ; reset E G4 P3000 ; 3 sek pause M117 Stringtest ; __________ ABL Automatic Bed Leveling uses this g code in start: G28 ; Home G29 ; Probing M420 S; bed leveling ON M420 Z5; G1 X10 Y10 Z40 F3000 ; prime position G1 E60 F2500 ; 60 mm prime G92 E0 ; reset E G1 E-3 F2000 ; 3mm retract G92 E0 ; reset E G4 P3000 ; 3 sek pause M117 Stringtest ;