Design for Manufacturing (DFM) Review
Catch potential manufacturing flaws, reduce machining cycle times, eliminate tooling scrap, and cut part costs before placing your production order.
What We Check in Every DFM Review
Our engineering team analyzes every CAD model to ensure smooth manufacturing without unexpected cost surges or production delays.
Internal Corner Radii & Tool Access
Standard end mills cannot cut sharp 90° internal vertical corners. We recommend adding internal corner fillets (minimum R = 1/3 cavity depth) to allow standard cutter rotation without chatter.
Wall Thickness & Structural Rigidity
Walls thinner than 0.8 mm in metals or 1.5 mm in plastics can vibrate during milling or warp from residual stress. We identify fragile thin walls and suggest rib reinforcements.
Hole Depth-to-Diameter Ratios
Drilled holes with depth-to-diameter ratios greater than 8:1 can drift or cause drill bit breakage. We flag deep non-standard holes and suggest standard drill diameters.
Standard Thread Depths & Reliefs
Tapped thread depths beyond 3x nominal diameter provide negligible added pull-out strength while dramatically increasing tap breakage risk. We optimize thread depths for manufacturability.
Draft Angles for Injection Molding
Plastic molded parts require 1° to 2° of draft per side (and 3° to 5° on textured surfaces) to prevent drag marks and allow clean part ejection from the steel mold cavity.
Sheet Metal Bend Relief & Hole Spacing
Holes placed too close to a bend line (< 2x material thickness) will distort during press brake forming. We highlight bend reliefs and recommend safe offset distances.
Get a Free DFM & Manufacturability Report
Upload your CAD files for detailed engineering feedback within 24 hours.