Turntable motor cogging

paulf-2007

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Looking at DIY'ing a rim drive turntable and came across the teres verus motor drive. Upon reading the marketing blurb and very impressive it is talking about all the usual drives and motor types it mentions motor cogging and that's when I thought about the voyd and it's three motors. I may still be wrong but think that this May be voyds way of reducing the cogging effect. Before I couldn't see the purpose of three motors and when compared with my 401 at a bake off some commented on the voyds different presentation, personally I didn't hear it, so maybe it's pointless to build a rim drive tt other than the challenge of the build and producing something decent that others could appreciate more than moi. Anyone here have or heard a teres or other tt using their verus drive care to comment.

 

i_should_coco

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Lol, if you can't hear the difference between a Voyd and a Garrard, I'd give up, buy a Steepltone and be happy. :)

 

paulf-2007

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Lol, if you can't hear the difference between a Voyd and a Garrard, I'd give up, buy a Steepltone and be happy. :)
The garrard works for me Pete, don't you think I'm the lucky one 'cause I can enjoy my music without constantly box swapping and stressing over minute differences mattering

 

i_should_coco

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You'd have to ask the designer, AFAIK(I may be wrong) that isn't the reasoning for the design, though I suspect it does even out any motor effects, randomising them to an extent. Then again, it could cause the all to sync up, so who knows?

 

pmac

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I could think of other benefits that would be more likely to be the reason for 3 motors. As Pete says, what would happen if they sync'd up, unlikely as it sounds :?

 

pmac

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Three motors will (if the belt tensions are matched) reduce or eliminate radial forces on the bearing, thus reducing noise and wear.

Increased torque is a given, but less likely a reason than the above IMO

 

i_should_coco

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Interestingly Arthur Khoubessarian does similar with one motor in the Funk designs using idler pulleys.

 

pmac

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Interestingly Arthur Khoubessarian does similar with one motor in the Funk designs using idler pulleys.
I guess he must think the additional noise from the bearings in the idlers is more than offset by the reduction in noise from using only one motor (that'll be a third of the noise that three motors produce ;-) )

 

i_should_coco

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article-2291620-189070AB000005DC-330_634x656.jpg
 

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