This is my dog Theo, and if this picture looks familiar it's because I used the same one in my last post about the sprinkler cage that I made, which you can see in the background. Anyways, what I'm getting ready to make this time is a Scoop that I can use to pickup after Theo after he does his business. And as you can see, he does use this area.

Now I've been using a shovel for this, which works, but that picks up sand as well. What I need is something that the sand will slid through leaving me with only his poop to put into a bag.
 

Theo also goes in the smaller gravel that you see on the left side only. I think this area came about because he was using the grass in the backyard, but we've had a lot of rain lately which has flooded his normal areas back their. So I thought if I made something that would work with this area, then it would work in the sand and grass as well. 
 

Here you can see three piece of steel of various types. At the top is mild steel that is 1.0" wide X 5.0" long X 1/8" thick. Below that is some 3/8" X 3/8" X 6.0" long key stock, and at the bottom is some 3/16" mild steel round bar that I'll be using nine pieces for this project, which will act as tines.
 

I then switched to a 3/16" end mill and went .200" deep to locate each round piece. Now you might ask, "why did you use a center dill if you're using an end mill because end mills are extremely solid and stable"? The reason is because an endmill will cut slightly oversize if used all by it's self. But if you remove some material first (like I did with the center drill), then the end mill cuts to size.

Below you can see the difference of before and after using a center drill and end mill.