CNC ROUTER MAINTENANCE & VACUUM CAM

CNC Spoilboard Flycutter Resurfacing & Stepover Calculator

Optimize flycutter stepover width, feed rate, surfacing cycle time, and spindle tram error scallop ridging for MDF/LDF vacuum spoilboards.

1. Machine Bed & Tooling

Table Length (X-Axis) [mm]

Standard 4x8 ft sheet = 2440 mm × 1220 mm.

Table Width (Y-Axis) [mm]

Flycutter Diameter (D_tool) [mm]

Insert face mill / spoilboard bit diameter (e.g. 50mm / 2").

Number of Inserts / Flutes (Z)

Spindle Speed (RPM)

Chip Load per Tooth (c_z) [mm/tooth]

Optimal MDF chipload (0.20 - 0.40 mm/tooth prevents burning).

Stepover Percentage (%)

Recommended 60% – 70% to eliminate ridge tramming lines.

Skim Depth per Pass [mm]

Feed Rate (F)

12,000 mm/m

472 IPM table velocity

Stepover Width (W_step)

32.5 mm

Lateral toolpath offset

Total Resurface Time

8m 12s

Raster cycle duration

MDF Waste Volume

1.49 L

Dust extraction volume

TOOLPATH STEP OVERLAY & RASTER PATTERN:

                            Feed = RPM × Number_of_Flutes × Chipload
                        

SpotItLive converts technical drawings, 3D relief heightmaps, and raster artwork into node-optimized, tangent-continuous DXF toolpaths.

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