Kingroon KLP1 3D printer quality problem

I'm having issues getting clean surfaces on my new Kingroon KLP1 printer. I've added Oldham coupler to z lead screw, unconstrained top of z axis screw, added bed stiffness arms, added z lead screw thrust bearings, and ensured all tunings were done and the quality is still poor.

[@xianshishenshan5182]

Visually, at this speed, this result should be related to the slicing settings.

[@user-nn2dq7of6m]

What slicer software were you running? I got my klp1 off Facebook marketplace thinking it might be a good deal but am running into problems

[@acero_5146]

Reduce la velocidad de la pared exterior a 150 mm/s, y los perimetros pequeños a 120 mm/s

[@kwedl]

I just ended up getting my money back. A fast corexy for that price sounds amazing, but even at low speeds and after hours of adjusting things on the printer and in klipper it can't even print the most basic models.
I will just get the Neptune 4 instead.

[@JohnOlson]

its a cantilever bed, right? Only supported in the back. At 210x210, that's still a fair bit of weight to only be supported on one edge.

[@crazynanoman]

That's true for stock printer but I designed support arms that greatly stiffen the bed. They help but don't completely fix the issues.

[@mikelabruna9976]

This looks more a problem with the filament, slicer settings or extruder. It's over&underextruding

[@crazynanoman]

Which is it over or under or you don't know? It's not filament as I dry it and prints beautiful on other printers. It could be slicer but it's Kingroon's profiles and slicer.

[@crazynanoman]

Why buy fast printer if it can't print fast? I've tried slower it only helps a little. Something else is going on with it.

[@makerdemadrid]

KLP1 y la KP3S PRO V2 son un problema, un dolor de cabeza, lo bueno que la gente ya se está dando cuenta y en servicio de #Kingroon son muy desagradables. Mejor no comprar.

[@leochan9220]

Yes KLP1 very bad

[@rolanmcdolan2518]

Print slower.