Bob was one of the finest people I knew; many of my favorite cave memories are from trips with him in Carlsbad Caverns and Fort Stanton Cave (FSC). His sense of humor was subtle and delightful, like Bob himself. And he was very inventive in making instruments for use in the cave. He constructed a radio-location unit for the cave consisting of electronics and antennas strung around a PVC pipe frame and a home-crafted wooden wheel. Using this unit, Bob enabled communication through hundreds of feet of solid rock, and he established the actual cave passage location relative to the surface many miles from the entrance. When lidar units were very expensive, he developed an affordable prototype unit from commercial lidar parts. His next version was made from vacuum cleaner parts (yes, it worked). His final version fits easily in a cave pack and has been used to lidar 3.2 miles of passage in FSC and create detailed 3-D models of those passages. Bob’s most recent contribution is a miniature barometric unit consisting of microelectronics in a Tuperware container We used that to obtain elevation data with a 2 foot accuracy for remote areas of FSC. I call Bob the “MacGyver of Caving”. We all miss him dearly. -Ron Lipinski, Albuquerque, NM