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Old 20th September 2013, 09:45 PM   #661
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Funny you should say that- my surname is 'Green'
The rod is 12mm and (so far) appears to work very well
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Old 20th September 2013, 10:37 PM   #662
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Quote:
Originally Posted by vynuhl.addict View Post
For dimensions,


The 12mm tube will require a 5-6mm bearing spacing, a 10mm tube is 4-5mm. Bearings should be loose enough to slide easily across the shim when not riding the tube.



Colin
Thank You !! very clear answer .. now I feel confident to proceed with the carriage works tomorrow .. as for now

Thanks again ,
Paul
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Old 21st September 2013, 06:14 AM   #663
lexx21 is offline lexx21  United States
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Location: North Carolina
Quote:
Originally Posted by ChrisG139 View Post
Funny you should say that- my surname is 'Green'
The rod is 12mm and (so far) appears to work very well
Were you using a 10mm rod previously? If so, then wouldn't you have changed your VTA unless you changed the height of the rod, thus the change in sound? Does it give the same results on different vinyl thickness? Kind of curious about this as I am trying to come up with a mechanism that would be easy to build and not overly expensive to change the vertical tracking angle.
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Old 21st September 2013, 06:22 AM   #664
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Location: Rotterdam
Quote:
Originally Posted by spinning wheel View Post
one more Q :

I'm realy wondering how tide , or loose the bearing should slide across the bras rod

Paul
Paul,

It`s a Round Brass Tube 3/16" x 0.014" a perfect slide, inner and outer!!!

I ordered it in the UK K & S 129 Round Brass Tube (1 piece) 3/16" x 0.014" x 12" New | eBay

I d`nt know where to buy in Holland, so...................

Hans.

Last edited by tomatamot; 21st September 2013 at 06:27 AM.
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Old 21st September 2013, 07:06 AM   #665
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Quote:
Originally Posted by lexx21 View Post
Were you using a 10mm rod previously? If so, then wouldn't you have changed your VTA unless you changed the height of the rod, thus the change in sound? Does it give the same results on different vinyl thickness? Kind of curious about this as I am trying to come up with a mechanism that would be easy to build and not overly expensive to change the vertical tracking angle.
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Old 21st September 2013, 07:08 AM   #666
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Quote:
Originally Posted by mightym View Post
you can also buy them, search " concave Yo Yo bearings "
Many thanks !
What I can do myself I don't buy.
But is there any benefit to do that ?
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Old 21st September 2013, 07:09 AM   #667
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Hi
Look at my pictures. The whole assembly is mounted on a single 3/16" threaded rod. Very simple:

Simple to mount and align as only one hole needed
Very rigid
Makes adjusting VTA a very simple process of screwing the nuts up and down the thread
Genius.........
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Old 21st September 2013, 07:29 AM   #668
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Location: Vancouver, BC,Canada
My technique for Vta and arm levelling. For Vta a double barrelled rigid dual bolt and nuts to raise or lower and lock Vta. The Allen key bolts at side top two lock arm level, the bottom hex bolt raises or lowers the bar level. I liked the idea of the somewhat substantial lexan base, this gives a secure footing on which to mount the arm and also aids in decoupling it from the rest of the turntable, though it will have partial coupling through the small Allen key base levelling bolts and the arm mounting bolt.


Colin
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Old 21st September 2013, 08:47 PM   #669
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Join Date: Aug 2003
Location: Calgary on the Bow
Default this may provide soem inspiration

Quote:
Originally Posted by lexx21 View Post
Were you using a 10mm rod previously? If so, then wouldn't you have changed your VTA unless you changed the height of the rod, thus the change in sound? Does it give the same results on different vinyl thickness? Kind of curious about this as I am trying to come up with a mechanism that would be easy to build and not overly expensive to change the vertical tracking angle.
Vertical Tracking Angle on the Fly (VTAF)
Best regards Moray James.
__________________
moray james
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Old 22nd September 2013, 12:18 PM   #670
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Join Date: Oct 2005
Quote:
Originally Posted by tomatamot View Post
Paul,

It`s a Round Brass Tube 3/16" x 0.014" a perfect slide, inner and outer!!!

I ordered it in the UK K & S 129 Round Brass Tube (1 piece) 3/16" x 0.014" x 12" New | eBay

I d`nt know where to buy in Holland, so...................

Hans.
Hi Hans ,

I can make the rod out of any available material myself on my lathe , so no need to order .

I'm thinking of a solid 6MM brass or bronze rod to serve as slider for the carriage bearings . got some neat unshielded roller bearings .
( 6MM I.D. / 10MM O.D. )

The reason to opt for a solid rod is for better precision and perpendicular mounting onto the carriage . not sure however if it will work out as for the
total weight of the carriage . will have to figure that too .

THX ,
Paul
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