large planters?

Do you think this would be a good technique for making medium to large concrete planters?

Hi minniesme,

All of the examples I use in this class are for solid casts. I would read through lessons 2 & 3 to get a basic understanding of the concepts of mold making and how to make a mold from a model WITHOUT undercuts – and then check out the following instructable on making a mold for a hollow cast and my coworker's Concrete Class. I'm confident that all of that info will result in successful planters for you! But if you have any more questions, please don't hesitate to ask!