History

On November 29, 1938, members of the American Diamond Drill Core Manufacturer's Association met in North Bay, Ontario, with some of the principal Canadian drill operators and manufacturers. The purpose of this meeting was to organize a Canadian association that would collaborate with the Americans to establish equipment standards which would be interchangeable between both countries. At this inaugural meeting of the Canadian Diamond Core Drill Manufacturer's Association (CDCMA), no officers were elected, but two committees were appointed: the Organizing Committee, chaired by J. Rolston, and the Technical Committee, chaired by P.Hall.

 

A second meeting on May 30, 1939 led to the adoption of a constitution and By-Laws. J. Rolston was elected President and J. Stevenson was appointed Secretary-Treasurer. Fees were set at $20 for active members and $10 for associates.

 

On December 20, 1939, the Canadian dimensions for EXT size were accepted, and on October 28, 1940, the Canadian group adopted the American 'thin wall' standards.

 

On February 28, 1941, the CDCMA convened its first general meeting since organizing it in 1938. The purpose of this meeting was to promote membership in the fledging organization and to acquaint Canadian contracting firms and mining companies with recently-established core barrel standards.

 

"One of the primary tasks of the diamond drilling associations in Canada and the United States is to develop a set of practical drilling equipment consisting of well-designed and interchangeable components." (June 16, 1945)