Any idea what could cause this on the few first layer on a delta

Controllers Smoothie
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Any idea what could cause this on the few first layer on a delta using smoothieboard?

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797b3fdd0bea7383cdd659f7236c7eb4.jpeg4160×2340 1.14 MB

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I’ve seen similar artifacts that turned out to be due to frame flexing or axis tilting at the extreme of Z motion, but only on Cartesian bots. The same might be possible on a delta, but unless your linear guides are bent, it’s hard to imagine how. An invalid belt path might do it, but a Bowden tube that is too short is probably a more likely cause.

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Oh, I just replaced the extruder (for a bondtech, along with the upgrade to smoothieboard)… must be that! I’ll change the tube for a longer one.

Thanks for the idea!

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Bonjour
Désolé en Français voir le réglage du courant des drivers moteurs mettre à la valeur préconisée par le fabricant diminuer l’accélération bon courage

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@Whosa_whatsis Wasn’t that :frowning:

@Patrick_Darrieulat ​ Je vais essayer, j’ai remarquer que j’ai seulement ce problème avec les cercles… un cube par exemple sera très droit.

Le courant des stepper est peut-être trop haut et le moteur chauffe (je sais qu’il n’est pas trop bas, il ne skip pas de steps).

L’accélération, je vais lire la dessus!

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Just an update, seems that one of my pulley was a bit loosen, causing slip only from one side. I fonds that trying to move the belt while the motor were holding.

Thanks for suggestions, I’ve tuned some settings hehe :smiley: