E-book Category: Entertainment E-book Title: The Design Of Gates & Risers. Book Description: While it is not difficult to pour molten metal into a sand mould, the ability to produce sound castings through proper gating and runner systems is an essential foundry skill. Gating is one area that will confuse and frustrate many people who don't understand the correct methods.You will be ahead of the pack with the valuable data and instruction this book provides. No longer will the mystery of gates & risers confuse or frustrate you.