ANGLING FOR 90 - tangential pivot tonearms - Page 48 - diyAudio
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Old 23rd May 2013, 06:55 PM   #471
stevieg is offline stevieg  United Kingdom
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I can see two tensioned springs - neither on the plane of the pivot, but possibly equidistant from it, and what seems to be a contrarotating balance weight. Hmmm. Are we moving into the "great theoretically if stuff always worked the way it is supposed to"?

Cheers Steve
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Old 24th May 2013, 07:34 PM   #472
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Quote:
Originally Posted by stevieg View Post
Hmmm. Are we moving into the "great theoretically if stuff always worked the way it is supposed to"?
This reminds me of your dad's quote: "The Vincent motorcycle was a collection of solutions looking for a problem."

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Old 25th May 2013, 09:04 AM   #473
stevieg is offline stevieg  United Kingdom
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This reminds me of your dad's quote: "The Vincent motorcycle was a collection of solutions looking for a problem."
Cheers for that. Made a sunny morning even finer. All we need now is someone to explain how this arm works. My guess would be the the springs and tensioned strings would buzz at some frequencies. Happy to be proved wrong.

Cheers Steve
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Old 27th May 2013, 07:18 PM   #474
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Default Schuch Tronic Modell No. 1 (Prototyp)

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Old 28th May 2013, 06:44 PM   #475
stevieg is offline stevieg  United Kingdom
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Can I see a bias compensation weight? Why?

Cheers Steve
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Old 29th May 2013, 10:30 AM   #476
Sprags is offline Sprags  United States
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Seems to me the simpler solution would be to not add complexity to the design of the tone arm but rather design a device that will move the platter along a path that will keep the stylus tangent as it should be.

This device can be designed and built to keep the platter as stable as necessary for proper playback of the vinyl recording relative to the stylus and system as a whole yet still move along the required path. Something cam driven perhaps with some kind of vision system to 'see' where the stylus is located while functioning as intended.

If someone is interested in pursuing this concept contact me.
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Old 29th May 2013, 07:52 PM   #477
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Quote:
Originally Posted by stevieg View Post
Can I see a bias compensation weight? Why?
Anytime the the stylus does not point to the pivot as a straight line, there will always be skating force, no matter how small even in a tangential pivot arm like the SchuchTronic or Thales Simplicity, hence the bias compensation.
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Old 29th May 2013, 07:57 PM   #478
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simpler solution would be to not add complexity to the design of the tone arm but rather design a device that will move the platter along a path that will keep the stylus tangent as it should be.
Wouldn't it be simpler to move the base of the tonearm than moving a spinning platter? I think a servo sliding armboard or armbase is closer to the mark. This thread is focused on mechanical design but we, of course, can flirt with other schemes. Thanks for chiming in.
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Old 29th May 2013, 11:17 PM   #479
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I see you posting a ton of pictures with different very expensive cartridges! Are those yours??
No, they're not. The pictures are all from the internet. I just accumulated all these pictures on this thread for all to ogle. After all, we all like audio porn, right?
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Old 29th May 2013, 11:18 PM   #480
Sprags is offline Sprags  United States
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Perhaps you are right about the servo-motor driven tone arm base...I overlooked that concept. I was looking more at the multi-link or cable controlled phone cartridge pivoting systems. Cables and links just make me think of a loss in precision for stylus orientation.
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