Engineering Guides
How a Scissor Lift Works
How a scissor lift raises a load: geometry, force distribution and structure, explained from an engineering perspective.
Read the guide →How a Hydraulic Press Works
Working principle, force calculation and CAD design of hydraulic presses, from pressing bearings to forming metal parts.
Read the guide →How a Gantry Crane Works
Structure, load mechanics and CAD design of gantry cranes for workshops and industrial facilities.
Read the guide →How a Welding Positioner Works
Rotation mechanics, torque and fixture design: how positioners improve weld quality and reduce manual handling.
Read the guide →Scissor Lift Force Calculation – Engineering Approach
Why the force in a scissor lift is highly nonlinear, why “force = load / 2” is wrong, and how the leg angle drives the required force.
Read the guide →Conveyor Belt Design – Speed, Capacity and Motor Power Calculation
Belt capacity, speed selection, conveyor resistance and motor power, calculated step by step.
Read the guide →Foldable Workshop Crane Design – Calculations, Forces and Real Engineering Approach
Boom, hydraulic cylinder and base frame: why small changes in pivot positions and cylinder angle change the forces so much.
Read the guide →Welding Positioner Torque Calculation – Engineering Guide
How to calculate the rotational torque of a welding positioner, the key parameter for a rotary welding table.
Read the guide →Engineering Calculators
Interactive tools for mechanism design, starting with a suspension kinematics calculator for double wishbone and McPherson suspensions.
Open the calculators →