3D печать с высокой точностью: калибровка с помощью OrcaSlicer

Summary

The video discusses calibrating 3D printers to achieve high precision prints. It examines various calibration techniques like temperature towers, flow rate tuning, pressure advance, and tolerance testing. The speaker demonstrates how proper calibration allows swapping parts between different printers, enabling prototyping tools to produce interchangeable manufactured components. Overall, the video highlights how crucial calibration is for utilizing 3D printers as precision instruments rather than just prototyping devices.

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Q & A

What is the main topic of the video?

The main topic of the video is calibration techniques for 3D printers to achieve better precision and accuracy.

What is flow rate and why is it important to calibrate it?

Flow rate refers to the amount of filament extruded from the nozzle per unit time. Calibrating flow rate is important because the actual filament diameter may differ from the nominal value, affecting the amount of material extruded.

How does pressure advance help improve print quality?

Pressure advance helps compensate for the delay between a change in filament speed in the feeder and resulting change in extrusion rate. This helps maintain a more consistent extrusion rate during acceleration/deceleration.

What is tolerance testing and how is it performed in the video?

Tolerance testing evaluates how well printed parts mate together. It is performed by printing a plate with different sized hexagonal holes and a hexagonal prism. The prism should fit in the hole with the smallest clearance.

What printer models are used in the video?

The video demonstrates calibration on an Ender 3 and a Bambu Lab X1.

How can print orientation affect dimensional accuracy?

Printing outer perimeters first can improve accuracy by avoiding buildup of positioning errors. Inner perimeters are anchored to already printed outer shells.

What are some ways to tweak models to improve fit?

Model tolerances can be adjusted by shrinking or expanding features. Holes can be enlarged or inserts shrunk to create a looser or tighter fit.

What is the benefit of auto bed leveling systems?

Auto bed leveling and calibration features like those on the Bambu Lab X1 remove the need for manual calibration. Results are often more consistent.

How does layer height affect calibration?

Smaller layer heights tend to improve precision but slow print time. Larger layers are faster but some calibration may need to be redone.

What limits precision on budget 3D printers?

Factors like loose belts, inferior motion systems, and imprecise extruders limit precision on budget printers. Proper calibration can still yield good results.