The Murphy Builders Site

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There are other ways to get a perfect hole spread without cnc or even drill press equipment say you start with the part envelope. The entire cut part before you put on the radius. You can do what's called layout. Paint the part where the holes are going to be with sharpie or dykem. The use a set of ...

So you have the other cover to use as a template? This is just about the easiest thing for any human to make. Kids do things like this in art and craft class. I like to use cardboard for free form design. But in your case you want to start with a rectangle with hard easy dimensions. Think round numb...