How to Level Bed on 3D Printer: Step-by-Step Guide

To level the bed on a 3D printer, adjust the bed leveling screws at each corner so the nozzle is the same distance from the bed across the surface. Use a piece of paper between the nozzle and bed to check the gap, moving the nozzle to each corner and center, tightening or loosening screws until the paper slides with slight resistance.

Syntax

Bed leveling involves adjusting the bed leveling screws located under the print bed at each corner. The goal is to set the distance between the nozzle and the print bed evenly across the entire surface.

• Nozzle: The part that melts and deposits filament.
• Bed leveling screws: Screws that raise or lower the bed corners.
• Paper test: Using a thin paper to measure the gap.

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1. Heat the bed and nozzle to printing temperature.
2. Move the nozzle to the first corner.
3. Place a piece of paper between nozzle and bed.
4. Adjust the screw until paper slides with slight resistance.
5. Repeat for all corners and center.
6. Re-check corners as adjustments can affect each other.

Example

This example shows how to manually level the bed using the paper method on a typical 3D printer with four leveling screws.

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Heat bed to 60°C and nozzle to 200°C.

Move nozzle to front-left corner.
Place a sheet of printer paper under nozzle.
Turn front-left screw clockwise to raise bed if paper is loose.
Turn counterclockwise to lower bed if paper is too tight.
Repeat for front-right, back-right, back-left corners.
Move nozzle to center and adjust screws if needed.

Final check: Paper should slide with slight resistance at all points.

Output

Nozzle is evenly spaced from bed at all points; paper slides with slight resistance.

Common Pitfalls

• Not heating the bed and nozzle: The bed and nozzle expand when hot, so leveling cold can cause errors.
• Over-tightening screws: Can damage the bed or cause uneven surface.
• Ignoring center point: The center can be higher or lower than corners, causing poor adhesion.
• Not re-checking after adjustments: Adjusting one corner affects others, so multiple passes are needed.

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Wrong way:
- Level bed cold.
- Tighten screws until paper cannot move.

Right way:
- Heat bed and nozzle.
- Adjust screws so paper slides with slight resistance.
- Check all points multiple times.

Quick Reference

Follow these quick tips for effective bed leveling:

• Always heat bed and nozzle before leveling.
• Use a standard piece of printer paper for gap measurement.
• Adjust screws slowly and in small increments.
• Check all corners and center multiple times.
• Perform bed leveling regularly for best print quality.

Key Takeaways

Heat the bed and nozzle before leveling to account for thermal expansion.

Use a piece of paper to set the nozzle-to-bed gap with slight resistance.

Adjust each corner screw slowly and re-check all points multiple times.

Include the center of the bed in your leveling checks for even surface.

Regular bed leveling improves print adhesion and quality.