MoFi UltraDeck / StudioDeck Owners and those interested

Alright. Started unpacking everything and I’ve already got questions.

Firstly, it seems like the platter has a really tough time getting seated and when I try to get it started it has a tough time getting going. What are we thinking here? In need of some lubrication? I think I read back that white lithium grease is the way to go?

That said, once lubed up should that platter spin for a long time if I just give it a push by hand (belt not installed)?
 
folsom_lives said:
Alright. Started unpacking everything and I’ve already got questions.

Firstly, it seems like the platter has a really tough time getting seated and when I try to get it started it has a tough time getting going. What are we thinking here? In need of some lubrication? I think I read back that white lithium grease is the way to go?

That said, once lubed up should that platter spin for a long time if I just give it a push by hand (belt not installed)?
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It may take an hour or two for the platter to settle. Don’t over grease or the platter will never settle. Don’t push down on the platter. Be patient .
 
HiFi Guy said:
If you hear “rumble” or rubbing you don’t have enough grease. It’s obvious- you’ll definitely hear it.
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Gotcha. So if I give the platter a spin it should only go a few rotations before stopping?

I’m just used to the Orbit which would go for miles with just a little push.
 
folsom_lives said:
Gotcha. So if I give the platter a spin it should only go a few rotations before stopping?

I’m just used to the Orbit which would go for miles with just a little push.
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Yeah you really gotta send it to get that thing to spin for long, that heavier mass apparently helps it maintain a consistent spin better where as a platter more prone to endless rotation can more easily slip into those wow/flutter states.

Give it a little warm up spin before hitting the on button, if I don’t do that I hear a little squeak while it gets up to speed. Bake it into your ritual and you’ll never have to worry about it!
 
Ghost said:
Yeah you really gotta send it to get that thing to spin for long, that heavier mass apparently helps it maintain a consistent spin better where as a platter more prone to endless rotation can more easily slip into those wow/flutter states.

Give it a little warm up spin before hitting the on button, if I don’t do that I hear a little squeak while it gets up to speed. Bake it into your ritual and you’ll never have to worry about it!
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I imagine it's more of an issue with the UltraDeck and its even heavier platter.
 
I guess this is my confusion. I understand weight and inertia is important. But wouldn’t you want the bearing to spin really easily to reduce wear and undue strain on the motor?

Forgive my stupid questions. Still new to the higher end gear and I know it sometimes can be counterintuitive. Basing all my knowledge on how an Orbit works might not be the best way moving forward. 😂
 
folsom_lives said:
I guess this is my confusion. I understand weight and inertia is important. But wouldn’t you want the bearing to spin really easily to reduce wear and undue strain on the motor?

Forgive my stupid questions. Still new to the higher end gear and I know it sometimes can be counterintuitive. Basing all my knowledge on how an Orbit works might not be the best way moving forward. 😂
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Once the thing is spinning there’s very little strain on the belt and motor, as keeping even a heavy platter moving is not terribly demanding. It does, however, make the startup process a little more difficult, hence the recommended push-start technique.

edit: that said, the thing is designed to work fine without a push start, you might just get a little belt squeak.
 
kvetcha said:
Once the thing is spinning there’s very little strain on the belt and motor, as keeping even a heavy platter moving is not terribly demanding. It does, however, make the startup process a little more difficult, hence the recommended push-start technique.

edit: that said, the thing is designed to work fine without a push start, you might just get a little belt squeak.
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Yup. Had a squeak last night but giving a start worked fine.
 
folsom_lives said:
I guess this is my confusion. I understand weight and inertia is important. But wouldn’t you want the bearing to spin really easily to reduce wear and undue strain on the motor?

Forgive my stupid questions. Still new to the higher end gear and I know it sometimes can be counterintuitive. Basing all my knowledge on how an Orbit works might not be the best way moving forward. 😂
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Inverted bearings like the MoFi use grease by design. A ball bearing design like UTurn or Rega uses light oil. That makes a difference too.
 
HiFi Guy said:
Inverted bearings like the MoFi use grease by design. A ball bearing design like UTurn or Rega uses light oil. That makes a difference too.
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I get the squeak on my VPI with an oil bath bearing and a 7 pound platter, too. Mostly happens with the 45 pulley setting versus 33. The starting torque required to rotate the platter can cause an instant of belt slippage. Never has been a real problem for me.
 
So then what's the consensus on grease type for the bearing? Lithium? Any brand recommendations or am I headed to the local tractor supply...
 
So, embarrassingly I have not owned a tracking force scale until yesterday. The Fluance had a pretty straight forward system for telling what the tracking force is but the MoFi is not so telling. I finally picked one up yesterday just to double-check the tracking force on my new deck

Upscale Audio sent a photo of the tracking force being set at 1.74g prior to shipment.... yesterday when I measured it out it was at 2.33g. Whoops, not sure how it got so out of whack when I followed their installation instructions but glad I finally decided to check.
 
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