Cable Mechanism Maths: Designing Against the Capstan Equation

I fell in love with cable driven mechanisms a few years ago and put together some of my first mechanical tentacles to celebrate. But only after playing with them did I start to understand the principles that made them work. …read more

Continue reading Cable Mechanism Maths: Designing Against the Capstan Equation

Cable Mechanism Maths: Designing Against the Capstan Equation

I fell in love with cable driven mechanisms a few years ago and put together some of my first mechanical tentacles to celebrate. But only after playing with them did I start to understand the principles that made them work. …read more

Continue reading Cable Mechanism Maths: Designing Against the Capstan Equation

Control Theory Spellcasting Banishes the 3D Printing Ghosts

It seems as though we still can’t hit the ceiling on better control schemes for 3D Printers. Input Shaping is the latest technique to land on our radar, a form of resonance compensation that all but eliminates the ghosting (aka: vertical ringing) artifacts we see on the walls of printed …read more

Continue reading Control Theory Spellcasting Banishes the 3D Printing Ghosts

A Case for Project Part Numbers

Even when we share the design files for open source hardware, the step between digital files and a real-world mechatronics widget is still a big one. That’s why I set off on a personal vendetta to find ways to make that transfer step easier for newcomers to an open source …read more

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A Featherweight Direct Drive Extruder in a Class of Its Own

Even a decade later, homebrew 3D printing still doesn’t stop when it comes to mechanical improvements. These last few months have been especially kind to lightweight direct-drive extruders, and [lorinczroby’s] Orbiter Extruder might just set a paradigm for a new kind of direct drive extruder that’s especially lightweight.

Weighing in …read more

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This GCode Post-Processor Squeezes Lines into Arcs

When the slicer software for a 3D printer model files into GCode, it’s essentially creating a sequential list of connected line segments, organized by layer. But when the features of the original model are dense, or when the model is representing small curves, slicers end up creating a proliferation of …read more

Continue reading This GCode Post-Processor Squeezes Lines into Arcs