Surfix, Inc.
Our fast CNC machining capabilities include services for metals and plastics. Our flexible production and shipping options provide you a price and product to meet your requirements.
Surfix serves several customers in various industries so you benefit from large material buys, materials up to 5 foot x 12 foot and sharing possibilities of stock material for cost effective yields.
Why CNC Routing Versus Water Jet , Laser or Plasma Cutting?
Routing provides for fine finished edges, no blow out, square edges and non warping. And you don’t need to go all the way through; CNC routing can make pockets, counter bores, bevels, counter-sinks and slots.
CNC, or computer numerical control routing, is a manufacturing process that uses electronic files and tool paths to control high-speed cutting tools ( up to 24,000 RPM ) for designs in metal or plastic materials.
Surfix skilled operators develop a perfect result by programming tool paths based on the geometry of the final machined parts. The part geometry information is provided by a CAD (computer-aided design) model. CNC machines can cut almost any metal alloy and rigid plastic with high precision and repeatability, making custom machined parts suitable for nearly every industry, including medical, robotics, electronics, boat building , industrial, signs and stage production.
CNC MACHINING TOLERANCES
Feature
Description
Maximum Part Size
Milled parts up to 60″ x 144″ x 4 inches thick
Standard Lead Time
5 business days
General Tolerances
Tolerances on metals will be held to +/- 0.005″ unless otherwise specified.
Precision Tolerances
Surfix can manufacture and inspect to tight tolerances per your drawing specifications.
Threads and Tapped Holes
Surfix can accommodate any standard thread size, and Helicoil threading.
Edge Condition
Sharp edges are broken and deburred unless otherwise specified.
Surface Finish
The standard finish is as-machined: 125 Ra or better. Additional finishing options can be specified when getting a quote.
CNC MACHINING DESIGN GUIDELINES
Feature
Description
Internal corner fillets
Design internal corner fillets to be 0.020” – 0.050” greater than a standard drill size for the radii. Follow a drill diameter to depth ratio of 1:6 (1:4 recommended) as a guideline for internal corner radii.
Floor fillets
Design floor fillets smaller than corner fillets to allow the same tool to clear material from the interior.
Undercuts
Always design undercuts to standard sizes and away from corners so they are accessible by the cutting tool.
Tapped/Threaded Hole Depth
Provide tool clearance slightly beyond the tapped hole depth to ensure complete threads.
Complexity
Keep the number of small cuts to a minimum to reduce CNC machining costs; only design in the necessary features to balance function with aesthetic.