Sometimes if you take a close look at your print, you may notice that some layers are simply misaligned. Generally, this only happens in one direction at a time; however, the issue can happen in multiple directions. With this issue, you’ll see that entire layers are shifted to one side, often by the same amount. This is unfortunately exclusively caused by issues that require maintenance to your 3D printer.
The first thing you should do before performing any maintenance to a 3D printer is turn it off and let it cool down. There are many scorching parts, and it can be easy to burn yourself if you’re not careful.
Troubleshooting Tips for Misaligned Layers
Once your machine is cool, check the belts. These should be tight on both the top and bottom sides. To test this, try to pinch the two sides together; both the top and bottom sides should be equally tense. If the bottom side is looser, then you will need to tighten the belt. Some printers come with an automatic belt tensioner; you can also 3D print one to add that functionality yourself. If you haven’t got a tensioner, though, you’ll need to tighten the belts yourself.
Next, check the rods, threaded rods, or lead screws; these should be perfectly straight and clean. If some dirt is present, clean them off and add a drop of oil to lubricate them. Unfortunately, they’re almost impossible to fix if they’re bent and will need to be replaced.
Finally, check the drive pulleys. Carefully rotate the pully, and you should see a small grub screw. Next, hold both the rod and the belt, and give the belt a tug to force the pulley to turn. There should be no slip on the pulley. If there is, tighten the grub screw and try again.
These tips should help you to solve issues where your 3D prints come out with misaligned layers. If you’ve got any other tips to solve this issue, please share them down below.