Retract Tower
Sample part to properly calibrate the retraction. It’s important to do this step after calibrating the filament temperature to ensure consistent results. The retraction values can change according to temperature so it’s better to do this at the end. To set the retract calibration you can use the associated Postprocessing script.
You need to calibrate first the speed extruder retraction. For the distance you can start from a medium value adapted to your extruder type :
- Bowden technoloy : Distance 1 - 5 mm, Speed 10-50 mm/s
- Direct drive : Distance 0.25 - 1 mm, Speed 5-25 mm/s
Then you can tune the rectract distance.
Settings in the script for a Layer Height : 0.2
- Change Layer Offset : 4
- Change Layer : 38
- Display Details on LCD : True (Will add some M117 intsruction to dispaly the current modified value)
- Starting Value : 1 mm
- Value Increment : 1 mm
- Starting Value : 0.25 mm
- Value Increment : 0.25 mm
- Starting Value : 10 mm/s
- Value Increment : 10 mm/s
- Starting Value : 5 mm/s
- Value Increment : 5 mm/s
After the use of the Postprocessing Script, don't forget to remove it for your next project !
- Enable Retractions : True
- Retraction distance : ! Must be different from 0
- Nozzle Size : 0.4
- Layer Height : 0.2
- Initial Layer Height : 0.2
- Line Width : 0.4
- Wall Line Count : 3
- Top/Bottom Thickness : 0.8 mm
- Use Adaptive Layers : False
Printing Time = 50mn
To work the script must be able to modify the values of the retraction defined by Cura. You must therefore enable the Retractions and have set a Retraction distance greater than 0 mm.
After the use of the Postprocessing Script, don't forget to remove it for your next project !
Check that the option Use Adaptive Layer is not active. Since the release 1.2.4 when a Tower Model is used, the plugin check if this parameter is not set. If the parameter is set to true then the value is changed and a message is displayed :
This model have been designed to be print with a 0.4 Nozzle. If you want to use the same model, with a bigger nozzle you can do it by activating the option "Remove all holes" in the Mesh fixe section. As many user are opening an issue for that, since the relase 1.2.5 this parameter is automaticaly activated for this model if your nozzle size is bigger than 0.4mm . In this case an error message is displayed in Cura :
