13. General notes on 3D printing. Renkforce RF100 v2

13. General notes on 3D printing

During printing, never cut off the power supply, unplug the USB cable or remove the SD card.

• The print quality of 3D printers depends on many factors. The most important ones are:

- print speed

- layer thickness

- build bed calibration

- temperature

- flow

- filament material

- 3D model structure

• It is not always possible to achieve a satisfactory print result at the first attempt. Adjustments and fine tuning are necessary to improve print quality.

• Every material requires different print settings.

• Avoid overhangs greater than 45 °. If necessary, use the support structure option in “Cura“ and remove supports after printing.

a) Nozzle temperature

• The best nozzle temperature depends on the filament material as well as the printer layer thickness. The printing temperature of the filament varies depending on filament material and filament manufacturer. Always check the specification of the filament before printing. For best results it is recommended to use genuine Renkforce filament.

• Perform the first test prints at the default temperature.

• To optimize the print quality, print the same object with the same printing layer thickness but different nozzle temperatures. Select temperatures each different by 5 °C from the previous one. Compare the results.

This way you can find suitable nozzle temperatures for different filaments and printing layer thicknesses more easily.

• If the nozzle temperature is set too hot, the material cannot cool off quickly enough and will melt the layer below again.

• If the nozzle temperature is too low, the filament does not melt properly and the filament flow is non-homogeneous.

For these reasons, the individual layers do not melt together sufficiently.

b) Prevent nozzle clogging

• Do not leave the nozzle at a high temperature for a long time without printing.

• Keep the nozzle at least 20 mm away from the build bed during loading of filament.

• Unload the filament after use.

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