Description
Demi bullnose edge profile for 2cm (3/4") countertop slabs. Slightly less rounded than half bullnose. Optimized polishing parameters for Granite. Standard polishing sequence for natural granite.
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
Fabricators seeking precision for demi edge work will find the Demi Bullnose Edge Profile (Granite) - 2cm template indispensable. At standard dimensions, this DXF profile is optimized for CNC router operations across multiple stone types. The geometry accounts for standard tooling clearances and finish passes required in professional countertop fabrication. Whether working with granite or engineered alternatives, this template ensures uniform results across an entire project. Shop managers appreciate the time savings from eliminating manual layout work, and the demi profile remains one of the most requested designs in residential and commercial projects.
Installation Overview
Fabricating the Demi Bullnose Edge Profile (Granite) - 2cm 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
For the Demi Bullnose Edge Profile (Granite) - 2cm profile, set your CNC router spindle speed between 5000-7000 RPM for granite substrates. Use a feed rate of 40-60 IPM for roughing passes and reduce to 20-30 IPM for finishing passes. Select a diamond-tipped profile bit matching the template radius specifications. Program the toolpath using climb milling for cleaner cuts on the demi geometry. Maintain coolant flow at 2+ GPM to prevent thermal fracturing. For harder stones like granite, reduce feed rates by 20% and increase water flow. Run a test cut on scrap material to verify the profile matches the DXF template before committing to production stock.
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.