3D Printing and CAD - this is a whole thing. I don't really care to create desk ornaments and plastic trash, but instead things that are actually useful. I've been sharpening my CAD skills with OpenSCAD
Photography: I'm into the art and the science; I get into long exposure, time lapse, and astrophotography. I try to understand the photon. I take a lot of photos of my kids and family too.
Restoring an old Land Cruiser
Motorcycles: BMW, Ducati, Honda, BSA are my favs. I love to go on longer rides/adventures, but haven't had the time in recent years. I recently got a wicked fast electric motorcycle and I love it!
Motorsports: I like rotary engines, old race cars, and old trucks.
Transforming my garage loft into an office apartment. Skylights, insulation, walls, bathroom. Lots of power tools involved, only a few injuries. The permits are worse than the injuries. Ouch.
Building out my garage as an auto/wood shop (WIP)
Drawing. Apparently I can draw, and I need to nurture it.
Playing the bass guitar. I suck, but it's fun.
Woodworking. More like woodhacking.
Astronomy - an old love. The 2017 Solar Eclipse has inspired me to get back into it.
Ham Radio - my earliest real hobby (aside from computers)