Hardware Podcasts

The Spark Gap - Episode 5

The Spark Gap · 14 Jul 2014 · 44m

What this episode covers

Karl, a hobbyist engineer, details his custom-built 6040 CNC router, explaining his decision to replace the stock Chinese components with shielded cabling, aluminum motor mounts, and a Hitachi VFD to ensure reliability and 110V compatibility. He discusses the technical trade-offs between bipolar and unipolar stepper motors, highlighting why bipolar motors offer better torque for microstepping. Karl also describes solving a critical noise issue with limit switches by adding capacitors to the parallel port breakout board, and compares his DIY setup to commercial hobbyist machines like the Other Mill and Nomad.

Most relevant to

makers and hobbyists

Topics

Mentioned

Companies
Open Beam
Products
ShapeOko, Other Mill, Nomad
Chips
Allegro A3977
Also
Bridgeport, Instructables, Nema 23, 8020, TinyG, MeshCAM, OpenSCAD, Blender, HacksCNC, MakerCam, CamBam

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