ShopReady Draft 2D · 1:13 · narrated, with captions

A geared trip hammer, part 7 of 7: The head's path, a film, and the machine running

Trace draws the arc the hammer's head takes as it lifts and falls. Save a film writes one round of the motion as a GIF. Then the finished machine runs: a motor, two pairs of gears, a cam wheel tripping a hammer that falls by its weight, and a crank working a pump.

Before thisA geared trip hammer, part 6 of 7: A crank and a pump off the same train

This is one part of a longer film

Whole project · 8:17

A geared trip hammer: the whole project

A geared trip hammer built from a blank drawing in seven steps: a frame and a hammer from rectangles with typed sizes, a cam wheel made with Array and Weld, two pairs of gears placed on the meshing ring, a pin, a motor and a crank with a slide. It shows the ordinary drawing tools and snaps, the Gear tool, layers as heights, assemblies, the Motion window's joints, the gear train's table and ratio, parts pushing each other by touch alone, weight, Check for hits and the Clearance tool, Trace, Slow motion and Save a film. Nothing in the machine is scripted to move: the motor turns one gear and everything else follows from how the parts are drawn.

The rest of this project

Chapter · 1:08

A geared trip hammer, part 7 of 7: The head's path, a film, and the machine running

This is one part of a longer film

A geared trip hammer: the whole project

The rest of this project

A geared trip hammer, part 1 of 7: The frame and the hammer

A geared trip hammer, part 2 of 7: The cam wheel

A geared trip hammer, part 3 of 7: The gear train

A geared trip hammer, part 4 of 7: A pin, a motor, and the first run

A geared trip hammer, part 5 of 7: Check for hits, and room to work

A geared trip hammer, part 6 of 7: A crank and a pump off the same train