Do the following if you have issues with bed adhesion

1. Level the Bed

Bed levelling is an important but touchy thing to calibrate. Follow the instructions in the video to begin.

2. Calibrate the Z Offset

The Z offset is a fine adjustment of the nozzle's distance from the print bed. Follow your printer's manufacturer's instructions on adjustment.

3. Clean the Bed

Cleaning the print bed is an often overlooked maintenance item. Oils can keep filament from sticking to the surface. This can usually be done with isopropyl alcohol or acetone but check the manufacturer of your print bed's instructions.

4. Print with a Brim or Raft

Enabling a support brim or raft can greatly improve bed adhesion and resistance to warping.

5. Slow Printing on First Several Layers

In your slicer, find the settings for first layers. Test out several slower speeds in increments of 10 mm/s and see if adhesion improves.

6. Disable Cooling on First Several Layers

In your slicer, find the settings for first layers. Disable part cooling and see if adhesion improves.

7. Adjust Buildplate Temperature

In your slicer, find the settings for first layers. Test out several different buildplate temperatures in increments of 5 degrees and see if adhesion improves.

8. Use Glue, Tape, or Hairspray

If all else fails, you can apply painters tape, hairspray, or glue stick to the print bed before printing to improve adhesion.