Designed to raise a workpiece off the worktable for four-sided machining, all risers are made to fit your specific application needs. These risers are ideal to compensate for spindle clearance. If a plain-face console is not desired, the grid systems for our cube tombstones that are available include industry standard 2" grid, t-slots, and custom grids.
CAD Downloads: CAD download is for a plain face tombstone, all measurements are in inches unless otherwise noted, all weights are in pounds and include base plate.
Tolerance | Precision |
---|---|
Flatness (tombstones & plates) | .0005 / 12x12 |
Parallelism (plates) | .0005 / 12 Max .002 total |
Perpendicularity | .0008 / 12 Min .001, Max .002/48 |
Surface Finish | 63 RMS |
Face Thickness | ≤18” = ±.002, >18” = ±.003 |
Tapped Holes (non accumulative) | ±.005 |
Precision Bushing I.D. | +0.0013 / +0.0007 |
Precision Bushing Concentricity | 0.0001 |
Bored or Precision Bushing Hole to Adjacent Hole | ±.0005 |
First Row Bushing Hole Location from Datums | ±.002 |
Bored or Precision Bushing Hole Spacing (non accumulative) |
0-10 ±.0005, 10-20 ±.0008, 20-30 ±.0010, 30-40 ±.0012 (for aluminum, add 50% to these tolerances) |