Description
The Dupont edge profile represents a sophisticated approach to luxury countertop fabrication, featuring a distinctive straight step or notch along the front edge that creates visual depth and architectural interest. This template is specifically engineered for 3cm+2cm laminated granite slabs, producing a substantial 2-inch thick edge that combines durability with upscale aesthetics. The lamination technique bonds a 3cm top slab to a 2cm bottom piece, creating enhanced structural integrity while allowing for dramatic edge treatments that would be impossible with single-thickness material. Designed for professional stone fabricators, this DXF template includes comprehensive CNC programming data optimized for natural granite's unique crystalline structure. The profile measures 1.969 inches in total height with a 1.5-inch visible edge depth, providing the perfect proportions for high-end residential and commercial installations. Granite's natural hardness and density make it ideal for this edge treatment, as it can withstand the aggressive machining required for the stepped profile while maintaining crisp, clean lines that won't chip or deteriorate over time.
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The Dupont edge profile represents a sophisticated approach to luxury countertop fabrication, featuring a distinctive straight step or notch along the front edge that creates visual depth and architectural interest. This template is specifically engineered for 3cm+2cm laminated granite slabs, producing a substantial 2-inch thick edge that combines durability with upscale aesthetics. The lamination technique bonds a 3cm top slab to a 2cm bottom piece, creating enhanced structural integrity while allowing for dramatic edge treatments that would be impossible with single-thickness material. Designed for professional stone fabricators, this DXF template includes comprehensive CNC programming data optimized for natural granite's unique crystalline structure. The profile measures 1.969 inches in total height with a 1.5-inch visible edge depth, providing the perfect proportions for high-end residential and commercial installations. Granite's natural hardness and density make it ideal for this edge treatment, as it can withstand the aggressive machining required for the stepped profile while maintaining crisp, clean lines that won't chip or deteriorate over time.
Installation Overview
Installing Dupont edge profiles on laminated granite requires precision equipment and careful attention to seam positioning. The lamination seam sits at 0.787 inches from the bottom, creating a balanced visual weight while ensuring structural stability. Fabricators should begin with quality inspection of both slab pieces, checking for existing fissures or weakness that could compromise the lamination bond. The bonding process uses color-matched epoxy applied in a vacuum press to eliminate air pockets and create invisible seam lines. Once cured for the manufacturer-recommended duration, the laminated blank undergoes CNC profiling using the provided tool sequence. Installation on-site requires proper substrate support capable of handling the 2-inch thickness, with corbels or brackets spaced no more than 24 inches apart for overhangs exceeding 10 inches. The substantial weight of laminated granite necessitates professional installation with at least two experienced technicians.
CNC Cutting Notes
This template specifies a multi-stage machining process optimized for granite's 6-7 Mohs hardness rating. Begin with a 25mm roughing finger bit operating at 3500 RPM to establish the basic profile geometry, followed by a seam polishing pass at 2500 RPM to blend the lamination line. The nine-position polishing sequence starts with aggressive 50-grit metal bond pads at 2800 RPM, progressively advancing through 100, 200, 400, 800, 1500, and 3000 grit stations with incrementally increasing speeds up to 4000 RPM. This graduated approach prevents heat buildup that could cause thermal shock fractures in the granite's crystalline structure. Each polishing position uses resin bond pads after the initial metal bond stages, providing the flexibility needed to conform to the profile's stepped geometry. The final buffing stage at 4000 RPM brings out granite's natural luster while removing any residual polishing marks. Total machining time averages 8-12 minutes per linear foot depending on granite density and equipment capabilities.
Material Compatibility
This profile is engineered specifically for natural granite varieties, accommodating the material's inherent characteristics including crystal structure, hardness variation, and natural fissuring patterns. Works exceptionally well with dense granites like Absolute Black, Baltic Brown, and Ubatuba that can support the clean geometric lines of the Dupont step. Medium-density granites such as Santa Cecilia and Kashmir White also perform well, though fabricators should inspect for pre-existing fissures near edge areas. Highly figured or exotic granites with dramatic veining patterns create stunning visual effects when the lamination seam is carefully positioned to align or contrast with natural movement in the stone. Not recommended for extremely porous or heavily fissured granite varieties that may delaminate under the stress of profiling.
Where to Buy
This DXF template is available as a free download for professional stone fabricators and CNC operators. The template file works with all major CAD/CAM systems including Alphacam, Thermwood, Intermac, Northwood, and other industry-standard platforms. Fabricators will need to source their own granite slabs from stone suppliers, with lamination materials including color-matched epoxy resins and vacuum press equipment available from fabrication supply companies like Tenax, Akemi, or Bonstone.