Pecking

Use the Pecking page to control how far the drill drills down the hole for each peck and retracts up the hole between subsidiary pecks.

Retract factor — Enter the factor which determines the distance the drill retracts between one peck and the next. A value of 0.25 retracts the drill by 25% of the peck depth between successive pecks. Factors must have a value between 0 and 1.

Peck decrease — Enter the factor which determines how the peck depth reduces down the hole. A value of 0.25 reduces successive peck depths by 25%. Decreasing pecks enables you to reduce the peck depth towards the bottom of a hole for Deep drill or Break chip cycles.

Minimum peck — Enter the minimum allowable peck depth. When this value is reached, no further decrease in peck depth takes place.

Subsidiary peck — Enter the distance between successive pecks. The drill only retracts to the clear plane at the Peck depth rather than the Subsidiary peck distance. So, if you have a Peck depth of 3 and a Subsidiary peck of 1, the drill moves as follows:

— Down 1.0

— Up 0.1

— Down 1.1

— Up 0.1

— Down 1.1

— Up to the clear plane

— Down 4.0

— Up 0.1

— Down 1.1

— Up 0.1

— Down 1.1

— Up to the clear plane

and so on.