Mandrel Lube

Topic: How to Use Mandrel Lube Mandrel Lube is a powerful feature that is used to precisely control when the lube is injected into the mandrel rod.

Where is the Mandrel Lube Option?

The lube feature is only available inside the Bend Option cells of the FRB menu. This allows an operator to control mandrel lube for each bend. Use the Mandrel Lube Enable to switch the feature on or off.

Mandrel Lube Start and Stop

This feature works with the Mandrel Lube Start and Mandrel Lube Stop angle settings. These control the start and stop of the mandrel lube based upon the bend angle. The start angle refers to where the lube zone starts: The values is from 0 degrees. The stop angle refers to where the lube zone ends: The value is an angle that is subtracted from the FINAL ANGLE. For example, if you set the stop angle to 50 degrees on a 50 degree bend, then the mandrel lube will never start - because CNC Bender is told to stop the lube 50 degrees below the goal - which is 50 minus 50 = 0 degrees.

Why Does the Mandrel Lube "Stop Within" Value Work This Way?

The "stop within" value is always relative to the final bend angle so that the amount of bend lubricated is relative to the final angle - no matter where it is adjusted to. This allows a percentage of each bend to be lubricated that grows and shrinks as the bend angle grows and shrinks.

Press AutoBuild To Make the Changes Take Effect in CNC Processor

Always press AutoBuild in the Bender Data menu for this change to take effect.

Test Your Knowledge 1

If... the bend angle is 50 degrees the "start angle within" value is 10 degrees the "stop angle within" value is 10 degrees ...how many degrees of bend will the mandrel be lubed? Answer: 30 degrees Reason: The lube starts at 10 degrees and stops at 50 minus 10 degrees. So 40-10 = 30 degrees of lube.

Test Your Knowledge 2

If... the bend angle is 75 degrees the "start angle within" value is 0 degrees the "stop angle within" value is 0 degrees ...how many degrees of bend will the mandrel be lubed? Answer: 75 degrees Reason: The lube starts at 0 degrees and stops at 75 minus 0 degrees. So 75-0 = 75 degrees of lube.

Test Your Knowledge 3

If... the bend angle is 90 degrees the "start angle within" value is 0 degrees the "stop angle within" value is 90 degrees ...how many degrees of bend will the mandrel be lubed? Answer: None Reason: The lube starts at 0 degrees and stops at 90 minus 90 degrees. So 0-0 = 0 degrees of lube.