Homemade Egg McMuffins

A touch of butter on a properly seasoned cast iron griddle… medium heat… eggs…. firm up… flip over and press down… finish up to perfect doneness.

Served with pan fried bacon and toasted english muffins.

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The dogs chewed my toaster cord in half so until it is repaired, I’ve been toasting on a flat cast iron griddle.  I actually like it a lot better.

Auto Loading CNC Router Jig

After years of making the same part repeatedly on the CNC router, I finally decided it was time to make the router load it’s own material.

Friction is a valid way to hold a part for routing.  That is how most vices and clamps work.  The key here is to calculate an amount of friction that will resist the cutting forces while at the same time keeping it low enough for the router to be able to overcome it while loading and unloading.

I’ll post more on this when we have it working.  For now, here is a cool picture of the jig.

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Barrel Sander (M002) Motor Assembly

Most standard 60HZ AC motors come in approximately 3600 RPM or 1800 RPM.  The barrel sander needs to spin at about 30 RPM.  To achieve this, the following approximate pulley sizes will be used:

  • 1800 RPM motor
  • Shaft to 2″ Pulley
  • Belt to 7.5″ pulley
  • Shaft to 1.75″ pulley
  • Belt to barrel (approx 23″)
  • End Result is approx 30 RPM

(This was from memory so might be fractionally off).

Here is a render of the pulley assembly (draft):

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Barrel Sander (M002) Wooden Slat

The inside of the barrel tumbler needs a polygon (made from wood) in order to (a) give enough “traction” to turn the contents, and (b) protect the barrel from repeated impacts.  I’m going to use Oak or Maple to do this.  Based on the width and thickness of available material, I chose a 9-sided polygon.

Here is a picture of the CAM operation prepared using Fusion 360.   I will make nine of these with just a fraction of an inch extra that I can remove on the jointer while getting a tight fit.

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