Ja provaste trocar o cabo do motor do extrusor com o de X ou Y? Ou trocar o motor do extrusor com o de X ou Y? (Assim podes saber se o problema esta no cabo ou no motor.)
Nao tens algum mensagem de erro no LCD ou em pronterface quando tentas de rodar o extrudor?
Did you already try to exchange the cable of the extruder motor with the X or Y motor cable? Or exchange the extruder motor with the one from X or Y? (This way you would know if the problem is related to either cable or stepper motor.) And also, you don't get any error messages on the LCD or in pronterface when you try to activate the extruder?
Nao tens algum mensagem de erro no LCD ou em pronterface quando tentas de rodar o extrudor?
Did you already try to exchange the cable of the extruder motor with the X or Y motor cable? Or exchange the extruder motor with the one from X or Y? (This way you would know if the problem is related to either cable or stepper motor.) And also, you don't get any error messages on the LCD or in pronterface when you try to activate the extruder?