how do i fix this scaling bug?

[Toonski 0]

so im trying to print a simple heart. but it dosent slice correctly. it's filling in the middle where i want to to be blank. after messing around with the scaling i found that at 51% it slices correctly but at 52% it dosents.

 

anyone have any idea why this is happening?

[Slashee_the_Cow 409]

Looking at the picture of the lower one (the spike coming out of the top middle specifically), it looks like one or more of the model's normals might be messed up.

 

Other than that, the only thing I can think of right now is in the print settings, go to Mesh Tools and make sure Remove All Holes is turned off.

[Toonski 0]

hey so i figured it out. its sort of what you said. modeling it i used a mirror modifier with clipping. and this creates an extra face inside the mess where the mess and mirror meet. 

 

it was a basic thing i over looked but once both faces were removed cura slices it perfectly

 

thank you