Recent Blogs
Right-and-left Hand Screw Nut Traverse Mechanism: How It Works, Parts, Diagram, and Uses
How a Right-and-left Hand Screw Nut Traverse drives bidirectional spooling on wire winders, textile bobbins, and lab stages — formula, worked example, and design tradeoffs.
Reversing Grooved Drum: Helix Lead Calculator | FIRGELLI
Calculate axial advance from groove diameter and lead angle. Explore constant-lead geometry, slope and the distinction between helix advance and a complete reversing stroke.
Endless-groove Disk and Vibrating Arm Mechanism: How It Works, Parts, Diagram and Uses
Explore a grooved face cam driving a fixed-length oscillating arm. Compare chord travel, swing angle, groove width and local centreline curvature.
Spool Winding Machine Mechanism Explained: How It Works, Parts, Diagram, Calculator and Uses
How a Spool Winding Machine works — traverse mechanics, taper control, tension math, and real-world specs from textile, wire, and fishing-line factories.
Screw Traversing Ball Bearing Mechanism: How It Works, Diagram, Parts, Formula and Uses
Screw Traversing Ball Bearing explained — how this mill mechanism converts screw rotation into linear carriage travel, with worked numbers and named industrial examples.