wobble-free single point tonearm.
My new DIY tonearm, a wobble is free tonearm. That is, the only very slight wobble can occur. On my bloog you can see the exact details.
Tonarm Einpunktlager wackel frei.Uni pivot swinging free.
I could also discover a different solution in this forum. This topic should be set times all known solutions. Unfortunately, I'm not good with the PC. Insert images, etc ....
Diskusionen about my solution is difficult because I have to use the google translater. This can then times sound very rude, so I am very cautious.
]
Theo
Switzerland
My new DIY tonearm, a wobble is free tonearm. That is, the only very slight wobble can occur. On my bloog you can see the exact details.
Tonarm Einpunktlager wackel frei.Uni pivot swinging free.
I could also discover a different solution in this forum. This topic should be set times all known solutions. Unfortunately, I'm not good with the PC. Insert images, etc ....
Diskusionen about my solution is difficult because I have to use the google translater. This can then times sound very rude, so I am very cautious.
]
Theo
Switzerland
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Thanks for the note. How this is done with the URL and Picasa obviously I do not know.
Now I leave it so. On my Blogg you see the pictures, too.
Now I leave it so. On my Blogg you see the pictures, too.
Hi Peril.
Clever ... nice (Al) work (c.f.r. your blog)
Congrats.
TT Lenco!
One quid: How tuning "Azimuth" ?
Karel
Clever ... nice (Al) work (c.f.r. your blog)
Congrats.
TT Lenco!
One quid: How tuning "Azimuth" ?
Karel
The headshell solve, they can be swiveled or for fine-tuning I can turn the lateral brass screws further outwards or inwards.
The headshell solve, they can be swiveled or for fine-tuning I can when counterweight rotate the lateral brass screws further outwards or inwards.
Unfortunately cueing is not translated by google, I assume you mean even play?
The stabilizer has approximately + - 0.1 mm air upwards and downwards. The length of the stabilizer is about 4 x the distance from the pivot point to the diamond tip.
The stabilizer has approximately + - 0.1 mm air upwards and downwards. The length of the stabilizer is about 4 x the distance from the pivot point to the diamond tip.
when moving the arm by hand or lift. looks to me that its there to stop the magnet from moving out of polarity which would twist the arm tube and wreck the stylus. or is it there for some other function.
I'm not sure if I understand your question correctly?
The magnetic above the bearing is there only to reduce the weight of the entire tonearm. So I have much less friction on the bearing. the magnet has no oscillation stabilization.
The magnetic above the bearing is there only to reduce the weight of the entire tonearm. So I have much less friction on the bearing. the magnet has no oscillation stabilization.
ahhh ok. i thought there were 2 magnets (opposing magnetic fields) to increase the weight on the bearing to stop the micro vibration.
Nice work Mr. Peril.
If you meant to discuss stability of pivoted tonearm, I had earlier posted here (#1093) a liquid damped and stabilized unipivot tonearm. It looks little complex (Simple things are best). But it was just an idea I shared to see if anything worthwhile can be accomplished from that concept.
Regards.
If you meant to discuss stability of pivoted tonearm, I had earlier posted here (#1093) a liquid damped and stabilized unipivot tonearm. It looks little complex (Simple things are best). But it was just an idea I shared to see if anything worthwhile can be accomplished from that concept.
Regards.
Hi,
interesting unipivot You got there 😉
It looks to me as if the so called ´stabilizer´ would rather be a mechanical excursion limiter.
Are those two strips above and below the stabilizer-beam made of foam or neoprene-rubber?
A second point regards the lateral(?) weight protruding sideways from the counterweight.
Imho its positioned on the wrong side.
According picture #8/10 in Your Blog the stabilizer-beam should tilt downwards.
The lateral weight being on the same side as the stabilizer would incresase that tilting tendency.
It seems too me that only the magnet above the pivot point counters the tilt due to its pulling force.
Without the magnet the lateral weight should find itself on the opposite side of the stabilizer beam.
Similar stabilizer beams are found on the Stax UA-9 and MicroSeiki MAX-237/282
jauu
Calvin
(Transl):
Einen interesssanten Einpunkter hast Du da gebaut. 😉
Es sieht für mich so aus, als sei der sogenannte ´Stabilisator´ eher ein mechanischer Wegbegrenzer.
Sind das Schaum oder Neopren-Gummi-Streifen die ober- und unterhalb des Stabilisator-Armes angeordnet sind?
Ein weiterer Punkt betrifft das Lateral(?)-Gewicht seitlich am Gegengewicht.
Nach meinem Dafürhalten ist das auf der falschen Seite.
In Bild #8/10 in deinem Blog müsste der Stabilisator nach unten kippen.
Das Lateral-Gewicht auf der gleichen Seite wie der Stabi würde den Effekt noch verstärken.
Es scheint mir, das nur der oberhalb des Lagerpunktes angebrachte Magnet durch seine anziehende Kraft diesem Kippmoment entgegen wirkt.
Ohne den Magneten müsste sich das Lateralgewicht m.A.n. auf der anderen Seite des Gegengewichtes befinden.
Ähnliche Stabilisatoren findet man beim Stax UA-9 und den MicroSeiki MAX-237/282.
interesting unipivot You got there 😉
It looks to me as if the so called ´stabilizer´ would rather be a mechanical excursion limiter.
Are those two strips above and below the stabilizer-beam made of foam or neoprene-rubber?
A second point regards the lateral(?) weight protruding sideways from the counterweight.
Imho its positioned on the wrong side.
According picture #8/10 in Your Blog the stabilizer-beam should tilt downwards.
The lateral weight being on the same side as the stabilizer would incresase that tilting tendency.
It seems too me that only the magnet above the pivot point counters the tilt due to its pulling force.
Without the magnet the lateral weight should find itself on the opposite side of the stabilizer beam.
Similar stabilizer beams are found on the Stax UA-9 and MicroSeiki MAX-237/282
jauu
Calvin
(Transl):
Einen interesssanten Einpunkter hast Du da gebaut. 😉
Es sieht für mich so aus, als sei der sogenannte ´Stabilisator´ eher ein mechanischer Wegbegrenzer.
Sind das Schaum oder Neopren-Gummi-Streifen die ober- und unterhalb des Stabilisator-Armes angeordnet sind?
Ein weiterer Punkt betrifft das Lateral(?)-Gewicht seitlich am Gegengewicht.
Nach meinem Dafürhalten ist das auf der falschen Seite.
In Bild #8/10 in deinem Blog müsste der Stabilisator nach unten kippen.
Das Lateral-Gewicht auf der gleichen Seite wie der Stabi würde den Effekt noch verstärken.
Es scheint mir, das nur der oberhalb des Lagerpunktes angebrachte Magnet durch seine anziehende Kraft diesem Kippmoment entgegen wirkt.
Ohne den Magneten müsste sich das Lateralgewicht m.A.n. auf der anderen Seite des Gegengewichtes befinden.
Ähnliche Stabilisatoren findet man beim Stax UA-9 und den MicroSeiki MAX-237/282.
I have my blog revised, with text and current images. The brass parts of the counterweight sin hollow, so rather easily. They serve mainly to fix the counterweight. You can also influence the azimuth, but only slightly. The tonearm is heavy, with additional weight on the headshell, for the Denon DL 103R.
The magnet may not stabilize the wobble inclination. It is used only for the reduction of the entire weight of the tonearm. So is the friction of the bearing significantly lower !!!
Liquid for damping the loose slope I find problematic because the friction of the tonearm bearing increases greatly. Like the Well Temperet.
Thank you for setting the pictures !!!
The magnet may not stabilize the wobble inclination. It is used only for the reduction of the entire weight of the tonearm. So is the friction of the bearing significantly lower !!!
Liquid for damping the loose slope I find problematic because the friction of the tonearm bearing increases greatly. Like the Well Temperet.
Thank you for setting the pictures !!!
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Understanding the magnet is not as easy as you think.
Because the magnet is much wider than the axis of the single-point bearing. This is important for the function of the tone arm, because the axis when lowering the tone arm, is inclined and when playing back the record changes its angle to the magnet.
Because the magnet is much wider than the axis of the single-point bearing. This is important for the function of the tone arm, because the axis when lowering the tone arm, is inclined and when playing back the record changes its angle to the magnet.
The stabilizer should have some friction, if the center rod touches either of the guides. Is that not a problem?
The stabilizer touches only vibration, otherwise it is free. There are no vibrations during play. Oscillates only when the tone arm is guided by hand to record.
Would he play when touching something is the friction extremely weak, no comparison to the friction of the bearing.
Would he play when touching something is the friction extremely weak, no comparison to the friction of the bearing.
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