Here you go David
https://www.youtube.com/watch?v=H00prACPflw
https://www.youtube.com/watch?v=uTv3i4Xf5XA
I like the second one but you might want to install a cover with a piece of plastic to keep chips from flying into the workmen. A larger one might be all you need. The angle can be set to any thing you like to make banging those stakes easier. I used jogs like that all the time when I taught High School woodworking. Kept their fingers far away and safe.