My name is Mark Holzbach and these are the things I play with, follow, research and work with..
Air Plane Geek : I am not a pilot but I do enjoy aircraft. Private, Commercial and Military.
Ham Radio : Particularly Antenna Design & Modeling. My Ham Radio call sign is K3FY and I am a member of Breezeshooters.org
Electronics : Analog and Digital. Particularly Microontrollers such as Teensy 3.X, Arduino, Pcduino and TriPlc, 4D Systems Displays. Built a lot of Heathkits, Eico and Archer Kits in my youth.
High Performance Cars : Drag racing, Supercars, Road Coarse and Drift Cars. Big/Small Block and LS Chevys, Big/Small Block Mopars and the 426 Hemi, HPTuners, Megasquirt, EFI University.
CNC Machining and Programming : Haas VF3,w/rotary, SL20L and Okuma LB15
Computer Programming : Dataflex, C, Basic, Pascal, Hibol
Manufacturing and Production Systems
Commercial and Industrial Power Distribution.
Home and Commercial Heating Systems : Installed a gas fired under floor hot water radiant heating system for a co-worker. (See blog for photo)
What I do for a living : Fastener manufacturing : 1/4" to 4-1/2" diameter, Metric M6 to M114, tie rods up to 65' (ft) long