Hi Lharding54 - welcome to HomemadeTools.net :welcome"

Arduino, backhoe blades, truck rebuilding - you'll fit in well here. Here are some links for ideas for your builds:

Homemade Tools Search: ripper - HomemadeTools.net
Homemade Tools: slip roller - HomemadeTools.net
Homemade Tools Search: mortar mixer - HomemadeTools.net