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FreeCAD

Models, Projects, Notes and other miscellany

Split Bearing Clamp

A split pillow block for the 608zz skate bearing.

Toy Construction Brick – A great starter object for learning about the Draft mode of FreeCAD

Strandbeest – Sort of a requirement for 3d Printer enthusiasts to design their own.

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Momentary Push-button Innards

Small momentary push buttons can be difficult to understand, however if we look inside we can easily gain an understanding of their operation.

AS you can clearly see the black button portion pushes down on the thin disk. The center of the disk deforms and makes contact between the two contact strips. The disk also provides the spring return action and makes the clicking noise.

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LED – Innards

The LED ( Light Emitting Diode ) is found in just about every corner of our world that you can imagine.

The first consideration is that the LED is a Diode. Just like every other Diode current only flows in a single direction. When current flows in the correct direction the Diode emits Light.

The LED is comprised of a small chip inside of a clear or colored epoxy. It has two leads that allow connection to the Anode and the Cathode of the LED.