Description
Demi bullnose edge profile for 3cm+2cm laminated (2") countertop slabs. Slightly less rounded than half bullnose. Optimized polishing parameters for Marble. Lower RPM and starting grit to prevent surface damage on softer marble.
Related Templates
Crescent Edge Profile (Granite) - 2cm+2cm Laminated
Crescent Edge Profile (Marble) - 2cm+2cm Laminated
Crescent Edge Profile (Porcelain) - 2cm+2cm Laminated
Crescent Edge Profile (Quartz (Engineered)) - 2cm+2cm Laminated
The Demi Bullnose Edge Profile (Marble) - 3cm+2cm Laminated represents a precision-engineered edge profile template built for CNC fabrication workflows. Measuring standard dimensions, this DXF file provides the exact toolpath geometry that professional fabricators need. The demi profile is well-suited for granite installations, offering a clean transition that complements modern and traditional designs alike. Experienced fabricators know that starting with an accurate template is the foundation of quality work, and this profile delivers the consistency required for multi-piece installations in bathroom environments.
Installation Overview
Fabricating the Demi Bullnose Edge Profile (Marble) - 3cm+2cm Laminated edge starts with proper slab preparation and CNC setup. Secure the countertop blank on the CNC table using vacuum pods or mechanical clamps, ensuring the edge to be profiled extends beyond the table edge sufficiently. Load the DXF template into your CAM software and set the appropriate tool offsets for your specific edge profiling bits. For the initial roughing pass on granite, use a feed rate of 40-60 inches per minute with a spindle speed of 4500-6000 RPM. The demi profile geometry requires attention to bit selection, using profiling wheels that match the radius specifications in the template. After roughing, perform a semi-finish pass at 80% depth before the final profile cut. Water flow should be maintained at 2-3 gallons per minute minimum to prevent heat buildup. Hand polishing follows CNC work, progressing through 50, 100, 200, 400, 800, 1500, and 3000 grit pads. Buff with a felt pad and polishing compound for a mirror finish. Seal with an impregnating sealer designed for natural stone.
CNC Cutting Notes
CNC programming for the Demi Bullnose Edge Profile (Marble) - 3cm+2cm Laminated should account for tool wear compensation, especially on abrasive granite stones. Recommended parameters: spindle speed 4500-6500 RPM, feed rate 35-55 IPM for roughing. The demi geometry benefits from a two-pass strategy — rough to within 2mm of final profile, then finish at reduced feed rate (15-25 IPM). Use plunge rates no faster than 10 IPM to prevent tool breakage. Monitor vibration levels during cutting; excessive chatter indicates tool wear or incorrect speed/feed settings. Keep backup tooling on hand for production runs exceeding 50 linear feet of edge profile.
Material Compatibility
This demi profile is compatible with a wide range of countertop materials. Natural granite remains the most popular substrate, offering durability and an attractive polished finish. Engineered quartz performs excellently, with consistent material properties that make CNC cutting predictable and efficient. Marble requires more careful handling — reduce feed rates by 15-20% to prevent veining from causing unpredictable fractures. Quartzite is an excellent choice for this profile, as the material's hardness preserves fine geometric details through years of use. Dolomite and travertine can be profiled with adjusted parameters. Avoid ultra-thin porcelain slabs for complex profiles without proper backing support.
Where to Buy
Professional fabricators can source granite slabs from local stone distributors and wholesale suppliers. Visit SlabWise for template downloads and fabrication resources.