everytime i make a fondant cake the edges are really round. how to i achieve that really sharp edge when i fondant a cake?

Sharp edges on fondant cakes:

http://cakecentral.com/cake-decorating-ftopict-649500-.html

http://cakecentral.com/modules.php?name=Forums&file=viewtopic&p=6404271&sid=cf64977d7c2848c9c3a81be863d8bdc1

http://cakecentral.com/cake-decorating-ftopict-699117-.html

https://cakecentral.com/modules.php?name=Forums&file=viewtopic&t=642661&highlight=&sid=ee6199003860596581aea842ff6d6ea9

How to achieve square corners on a b/c cake:
(Helpful if frosting a square b/c cake or prior to adding fondant.)

http://cakecentral.com/articles/109/how-to-frost-a-square-cake

http://cakecentral.com/cake-decorating-ftopic-589750-previous.html&sid=b5827173ce40011ea95d6c5f84ff1be0

Ganache under fondant:

http://cakecentral.com/cake-decorating-ftopict-633264-.html

HTH

I swear by my magic line pans for sharper edges.

Learned how to do ganache under my fondant instead of bc. Works awesome for sharp edges!!! Here's the link.

http://sugarsweetcakesandtreats.blogspot.com/2010/05/covering-cake-in-ganache.html