2024.09.01 Breathing Exercise

Life is a breathing exercise

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Yamaha SA-5 / SA-30 / SA-50 Bridge Dimensions

As I restore my Yamaha SA-5 guitar, I’ve been taking dimensions of some of the harder-to-find parts so that they can be more easily re-created by folks in similar situations. It’s hard to find these parts on auction sites, but you can 3d print a facsimile fairly easily or use the model as a reference for hand re-creation.

Today I made a CAD model and drawing of the base of the bridge. The bridge is a two-piece setup commonly found on archtop guitars, though the dimensions of this bridge are not common on modern guitars to my knowledge. This bridge is also pinned to the guitar with wood screws, which makes the dimensions particularly important.

Here’s a picture of the real bridge base with the adjustment screws + thumbwheel installed, as well as some dimensions from the CAD drawing. I recommend playing around with the 3d model in Onshape to get a feel for the various dimensions.

Yamaha SA-5 / SA-30 / SA-50 / SG-2 / SG-3 Tremolo Collet

I recently acquired a 1966 Yamaha SA-5. It can be hard to find parts for these guitars. In particular, the tremolo arm and collet always seem to be missing. Mine has the collet but was missing the tremolo arm.

I found that this 5mm push-in replacement tremolo arm is the proper dimensions, provided that the collet is well-adjusted.

I also made a CAD model and drawing of the dimensions of my collet, in case folks are motivated to make their own. I have zero experience with CAD drawings, but hopefully these dimensions will be sufficient information.

These videos are an excellent source of information about how these assemblies go together. In particular for the collet, it threads into the tremolo base and is held in place by a jam nut (threaded M8 x 0.75). The tremolo arm itself slides in and is caught by the bottom half of the collet (tightened slightly to keep it from passing through). The nut that holds the tremolo arm in place has an internal M8 x 0.75 thread, but has a draft/taper internally that causes the top half of the collet to tighten on the arm.

Strat Sounds - 1/28/24, 09.52

Sparks from the fire twinkling in the vastness of the winter night

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Untitled - 1/22/24, 21.41

Ears ringing in the forest

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Strat Sounds 1/20/24, 20.15

Playing around with some new pickups.

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Candace

I recently found this song that I wrote for an acquaintance who passed.

Tele Sounds - 12/27/23, 20.48

My brother got me a stylophone and this happened.

Tele Sounds - 12/21/23, 21.09

Happy solstice 🌔

I loved this

In a world where evidence and logic are not respected in public debate, Hinton imagines that systems operating without evidence or logic could become our overlords by becoming superhumanly persuasive, imitating and supplanting the worst kinds of political leader.

Humans are just intelligent enough to be confident but not quite intelligent enough to have empathy and integrate with our world instead of destroying it. We are so self-centered and hubristic that we believe our intelligence is the apex of intelligence when it’s actually the modus operandi of a cancer at a larger scale.

Would a true intelligence destroy the world it inhabits? Would a true intelligence not integrate and create balance with its world? Would humans even recognize a true intelligence if we saw one?

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Sometimes things just happen

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Reprise through new eyes

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The world inside

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Light shining through the cracks in your carefully-built wall

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First time working the parachute

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All souls march

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Band of rats dancing

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Walking through a big empty skyscraper

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(melody from my dream)

The slog it takes to make something look easy

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Shock absorbers

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Bad vibrations

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(This one came straight out of my dream)

You don’t have to stumble and trip on this path, you can actually fly.

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Gradually sinking into the earth

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Scribbling in the margins