Building the Enhanced Hot Water Drill (EHWD)
Attaching calipers
Item Information
- Date: 11/21/2006
- Full Size: 960x1280 (3.20" by 4.27" at 300dpi)
- File Format: image/jpeg
- Description:
Calipers on the drill head send a serial data string to the surface in addition to a pressure sensor that lets the drillers figure out the drill depth. This information allows the drillers to decide whether or not the hole has met the required dimensions.
DSCF0003
