d) cut aluminum angle (pot stand height) = You can cut the aluminum angle with a hacksaw, making sure your angles are square. Once you have all three cut out, compare and use a file to straighten cuts, even lengths and smooth edges. They don't have to be exact but it helps if they are pretty close. Remember when choosing angle, the end must be long enough to support the pot edge while still allowing for at least 1/4" for air flow (for example, my angle edge was 3/4", putting 1/2" under the pot edge).