M5 Edge Finder™

SKU: EF-375-400-00

$69.95

The Static Edge finder is used to locate the edge of a workpiece in a CNC Machining center with the door open and the spindle off!

Using this edge finder is easy!

  • First, install the static edge finder in the chuck or collet of the spindle.
  • Using the jog box of the machine bring the plunger in contact with the face of the work piece closest to the desired edge to be located.
  • Slowly lower the spindle to compress the spring without bottoming out the retaining pin in the slot of the body.
  • Move the spindle toward the desired edge slowly watching for movement of the plunger.
  • When the edge of the plunger snaps off the edge of the workpiece store the value plus or minus half the diameter of the plunger depending on the direction.
  • Repeat these steps for all other remaining axes of the machine that need to be located.

Description

The M5 Edge Finder™ is used to locate the edge of a workpiece in a CNC Machining center with the door open and the spindle off!  Currently all new CNC machines come with door interlocks that lock the doors while the spindle is running.  If the machine’s safety switches are tampered with the company could be fined severely.

Using this edge finder is easy!

  • First, install the static edge finder in the chuck or collet of the spindle.
  • Using the jog box of the machine bring the plunger in contact with the face of the work piece closest to the desired edge to be located.
  • Slowly lower the spindle to compress the spring without bottoming out the retaining pin in the slot of the body.
  • Move the spindle toward the desired edge slowly watching for movement of the plunger.
  • When the edge of the plunger snaps off the edge of the workpiece store the value plus or minus half the diameter of the plunger depending on the direction.
  • Repeat these steps for all other remaining axes of the machine that need to be located.

The traditional way of doing this is to use an edge finder that rotates in the spindle of the machine. While spinning it encounters the edge of the workpiece the lower diameter of the edge finder shifts over slightly indicating that it is flush with the edge of the workpiece. At this time the spindle is raised and the location is recorded. The half the diameter is added or subtracted to determine the center of the spindle. However, with the door closed it is very difficult to see this happen.

A more modern but much more expensive way to locate the edge of the work piece is to use an electronic spindle probe or other electronic devices. These are expensive or may require batteries for them to work and they are very delicate.

A body with engraving or colored markings and a plunger with a skirt can be used give the operator an indication the plunger is about to or has fallen off the edge of the workpiece. At the top position there may be a red ring, close to falling off the edge the ring might be yellow ring and when the plunger drops off the edge a green ring would be revealed. The colors may vary depending on the meaning desired.

Additional information

Weight1 lbs
Dimensions3 × 4 × .5 in

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