Constant
Select this option to prevent any cuts above the chained islands. SURFCAM will not remove any material above a chained island.
Multiple
Select this option to cut the chained islands to the Stock To Leave distance above the top of each island. Use this option when the islands are at multiple depths.
A normal tool pass is made at each depth increment that the Rough Spacing In Z parameter requires. A tool pass is also made at the depth equal to the Stock To Leave amount above the top of each island.
The Multiple option requires that you draw the islands at their actual Z level on the part. The pocket and contour tool motion will not cut an island after the tool is below the top of the island.
If a pocket has an island with a side that is common to the pocket, that pocket is special. The chain for that pocket must start in the pocket on the island. Do not use the Auto > Visible method to chain the pocket.
The pocket and islands with sides in common.
First chain the islands at 1 and
2.Then chain the pocket at 3.
The pocket in verify
Roughing 3D
Select this option to do a form of roughing. This option cuts the contours on your part that are chained. The In Z parameters, like the Amount To Remove on the Pocket and the Contour Cut Control tabs, are not active. The location of the contours on the drawing controls the depth of the cuts.
When you use this option, the contours are chained in any sequence. The system automatically sorts the contours from the top to the bottom.