So what I mean by that is usually start at the outsole.

所以我的意思是通常从外底开始。

The reason why is because the outsole is the most complicated part to make.

原因是因为大底是制作最复杂的部分。

Change the outsoles of shoes and other things to make them work better for me.

更换鞋子的外底和其他东西，使它们更适合我。

So one of the things he did was actually use his waffle iron to actually create an outsole which is the bottom surface of the shoe.

所以他所做的其中一件事实际上是用他的华夫饼熨斗来制作一个外底，也就是鞋子的底面。