If the cross slide's axial movement equals the cross-slide feed dial setting, what is the resulting feed ratio?

If the cross slide's axial movement equals the cross-slide feed dial setting, what is the resulting feed ratio?

• A. 1:1
• B. 2:1
• C. 1:2
• D. 3:1

Answer: (A)

The feed ratio is a measure of how far the cross slide moves for each unit indicated on the feed dial. If the axial movement exactly matches the dial setting, then for every unit on the dial you get one unit of movement, which is a 1:1 relationship. So the feed ratio is 1:1. If the movement were different from the dial reading, the ratio would change accordingly (for example, 2:1 if movement is twice the dial value, or 1:2 if movement is half).

The feed ratio is a measure of how far the cross slide moves for each unit indicated on the feed dial. If the axial movement exactly matches the dial setting, then for every unit on the dial you get one unit of movement, which is a 1:1 relationship. So the feed ratio is 1:1. If the movement were different from the dial reading, the ratio would change accordingly (for example, 2:1 if movement is twice the dial value, or 1:2 if movement is half).