This is a router template for a square wall clock with a side length of 310 mm. The template is split into four pieces to fit the print plate. I recommend to make a test print before printing all four pieces and gluing them together!

The slots are designed for a 17mm router bushing. Use the FreeCAD source file to modify any of the dimensions!

The final clock can look like this. I used plum for the main body and ash/walnut for the dial markings