Use this engineering calculation for a transparent preliminary estimate or independent arithmetic check when geometry, materials, loads, operating conditions, and units are defined consistently.

Height Millimeters (mm)

Required number input.

Draft Degrees (°)

Required number input.

Lateral draft clearance h tanθ accumulated over mold or casting wall height. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Clearance Millimeters (mm)

The resulting clearance millimeters returned as a number.

• Bend allowance and deduction depend on actual tooling, inside radius, thickness, material, grain direction, angle, springback, and the shop's K-factor or bend table. Test coupons are preferable when finished dimensions are critical.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Check assumptions against drawings, measurements, current material data, and the applicable design code. Apply required load combinations and safety factors, then obtain qualified review and testing for consequential designs.

• Cam Lift Simple Harmonic

  Simple-harmonic cam follower displacement over a specified rise angle, with zero at start and full lift at end.

• Queue Length

  Net accumulated queue from constant arrival and service rates over an interval, starting with a supplied initial queue; floor at zero.

• Bend Deduction

  Sheet-metal bend deduction 2(R+t)tan(θ/2)−BA using an already calculated bend allowance.