Topics created by DVD479

@dvd479 How wide are print lines? How tall is the print?

In the first picture, the wood-grain waviness is often due to the extruder gears. I don't know of any cure for it except maybe to use an extruder with a very high gear reduction, and even that might not solve the problem.

If the print wall is thin, as the print gets taller it will distort under its own weight and create the sort of waviness in the second picture. In the past I tried printing tall vases with a 0.5 mm wall and they got very bad as they got taller. Now I routinely print 600 mm tall vases with 1.2mm wall thickness (1 mm nozzle) without such problems.

To verify your config isn't the cause, remove the SD card and power up. It doesn't seem like that is the case from what you posted, but you haven't shown the full config.g either.

If the heaters still heat up with the SD card removed, then it's either the mosfets or the wiring. Photos of the wiring would help us confirm that.

in the end I realized that the problem was not due to that parameter as you told me. as solution I reduced the transition speed and everything was fine

thank you all