Lines on side of the print

The aim of every print is that the surface comes smooth layer by layer. If one of the layers goes wrong, it is clearly visible at the outside of the object. For example: one layer of ten is wider than the others.
The consistent diameter of the filament plays a big role and also an exact positioning of your axis could lead to lines on the surface (e.g.: z-wobbeling). A bad tuned PID controller would be another reason why these lines appear. In this case the heating of the nozzle is inconsistent.

Quality Filament

Variations in filament diameter can cause different extrusions, which leads to lines on the print. The use of high quality materials with a consistent filament diameter can help. PrintaMent is produced with high quality standards to ensure a minimal distortion in the diameter.

Adjust belt tension

Many printers use belts for transmitting motors force. These rubber belts lose strength over time. If the tense is too low, the belts slips over the cogwheel/drive pulleys and your toolhead will lose the right position.

  • Check if all belts have the same tension by pinching them together.
  • Adjust the belt strength as described in your printer’s manual. Some printers like the prusa i3 have screws for strengthen the belts. Be aware of over strengthening your belts, this may cause other problems, like a not moving motor.
    If you are not sure about your printer’s belt strength, please read your printers manual or contact the manufacturer.
  • If your printer’s belts are quiet too lose and old, keep in mind that you should maybe change them as a last option.
Check the rods

urn off your printer and try to move your printer´s tool head over the whole length of your X and Y axis. If you feel a higher resistant at some points, clean the rods and lubricate them as described in your printer´s manual.
Don´t use oil or grease to smear every bearing! It depends on the bearing materials (eg. metal/metal, metal/plastic, different plastics) which lubricate is the best.

If lubricating the rods doesn´t help and you still feel a resistant at some points, the rods could be bent. Check if your rods are aligned. If they are in position and you still feel the resistance, you may remove the rods and roll them on a flat ground. If they are wobbling, your rods are bent and it would be the best to replace them.

Check the Z-Axis

Check if the rods and spindle are aligned and in right position. Are the bearings and couplings ok? do they have a lash? If yes, try to fix them or replace them. We recommend to do a visual inspection first, then to lubricate the rods and spindle as described in your printer´s manual.
Don´t use oil or grease to smear every bearing! It depends on the bearing materials (eg. metal/metal, metal/plastic, different plastics) which lubricate is the best.
Perhaps you check first other solutions, because next step will be to remove your Z-Axis parts and roll them on a clean flat ground to see if they are wobbling. If they are wobbling, they are bent and it would be the best to replace them.

Tune PID Controller

As often it is a combination between printing speed and nozzle temperature settings to get the best results for overhangs. We cannot give you a general solution, because different materials, printers and part cooling fans influences the outcome of the overhang very much.
We recommend to print overhang tests to optimize your settings and to find out which angles of overhangs are possible.

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