CORNER OFFSET TEMPLATE

This model is set to mark an offset of 65mm from each corner, however it is easy to change that dimension in your slicer to provide any custom offset (within reason) see attached photo for how to do that.

The model is solid, however I choose to print with no top or bottom layers - this exposes the grid so that I can quickly distinguish my templates from other pieces I may be incorporating in the job.   

Print in any left over scrap material you have - I always use the fastest mode and my oldest filament!