Lines Printed Seem Too Far Apart

[zeecalibur]

Hello, I have been trying to 3D print a large horn but when I print it, it looks like the lines being extruded are too far apart(I attached a picture so you can see what I'm talking about) causeing the object to look bad and break easily. This only happens with this file and not others. Does anyone know why this happens and how I can fix it?

[gkfosaa]

I really like compact and convenient items like this product stick merge