Recent Blogs
Sarrus Linkage
Sarrus Linkage explained — the spatial straight-line mechanism behind deployable solar arrays, scissor lifts, and folding optics. With formula and worked example.
Prismatic Pair
Prismatic Pair explained — the sliding lower-element joint behind every Linear Actuator, machine slide and hydraulic cylinder. Specs, formulas, real builds.
Grooved Cam Reciprocating (form 2)
Grooved cam reciprocating mechanism (form 2) explained — convert rotary motion to precise linear traverse for winders, packaging machines and textile feeders.
Grooved Cam Reciprocating (form 1)
Grooved cam reciprocating mechanism explained — how the closed groove drives a follower back and forth, with formulas, tolerances, and worked CNC examples.
Cylindrical Cam
How a Cylindrical Cam converts rotation into precise linear motion. Groove geometry, real applications in textiles and CNC, design formulas, and selection tradeoffs.
Reciprocating-rack Crank Substitute
How a reciprocating-rack crank substitute converts rotary input into linear back-and-forth motion. Real formulas, sizing examples, and packaging line uses.
Variable Rectilinear Motion
Variable Rectilinear Motion explained — how engineers convert rotary input into straight-line output with controlled speed variation across packaging, machine tool and automation builds.
Scott Russell Linkage
Scott Russell linkage explained — how this straight-line mechanism converts rotary motion into perfectly linear travel for test rigs, lifts, and lab equipment.
Uniform Reciprocating Motion
Uniform reciprocating motion delivers constant-velocity back-and-forth travel for machine tools, packaging, and textile lines. See the formula, examples, and design rules.
Slider-crank Reversing
Slider-crank reversing converts continuous rotation into reciprocating linear motion. See how it works, formula, worked example, and shaper-machine uses.
Rectilinear Motion
Rectilinear motion explained — how straight-line motion works, the formulas to size it, and real applications from CNC gantries to elevator cars in industry.
Endless Rack Reciprocator
Endless rack reciprocator explained — how the dual-pinion gear mechanism converts continuous rotation into reciprocating linear motion for textile and packaging machines.
Rack and Pinion
Rack and Pinion explained — how the gear-and-bar mechanism converts rotation to linear motion, with formulas, real automotive steering examples, and design tradeoffs.
Worm Screw Rack
Worm Screw Rack explained: how the worm-to-rack rectilinear drive converts rotary motion to linear travel, with formulas, real applications, and design tradeoffs.
Reciprocating Rectilinear Motion
Reciprocating Rectilinear Motion converts rotary input into back-and-forth linear travel. Learn the mechanism, formula, and real machine-shop applications.
Mangle Rack
How a Mangle Rack converts continuous rotation into reciprocating linear motion. Used in textile mangles, indexing tables, and printing presses.
Sliding Contact Mechanism
Sliding Contact Mechanism explained — how sliding pairs transmit motion, real applications in CNC machines, presses, and engines, plus a worked sizing example.
Slider (mechanism)
How a slider mechanism works, where it fits in industry, plus a worked example with formulas, tradeoffs and FAQs from FIRGELLI engineers.
Mechanical Translation
Mechanical translation moves a part in a straight line without rotation. Learn how it works, formulas, and real CNC and stage-rigging examples from FIRGELLI.
Screw Traversing Ball Bearing
Screw Traversing Ball Bearing explained — how this mill mechanism converts screw rotation into linear carriage travel, with worked numbers and named industrial examples.