nrenter Posted June 11, 2021 Share Posted June 11, 2021 (edited) I found someone to machine a heavier platter for my Teres turntable! Milled from a solid aluminum billet and a Delrin top. It's off to the anodizer for a deep black finish. I'll load the chambers with lead shot and experiment with Brass Black on the screws. Should be sneaking up on 40 lbs. when all said and done. Edited June 11, 2021 by nrenter 2 Link to comment Share on other sites More sharing options...
Huang Posted June 11, 2021 Share Posted June 11, 2021 Nice made me tingly when I saw. Does that make me an audio nerd🤓 Link to comment Share on other sites More sharing options...
TomicTime Posted June 11, 2021 Share Posted June 11, 2021 lovely ! Link to comment Share on other sites More sharing options...
stratocaster Posted June 12, 2021 Share Posted June 12, 2021 Wowza!! This thing looks like it should be on some high performance aircraft… Link to comment Share on other sites More sharing options...
ctsooner Posted June 13, 2021 Share Posted June 13, 2021 No words. Can the table use such a heavy platter etc. let us know how it sounds. Link to comment Share on other sites More sharing options...
nrenter Posted June 18, 2021 Author Share Posted June 18, 2021 Progress being made...shipping out today, should receive mid-next week. 1 Link to comment Share on other sites More sharing options...
ctsooner Posted June 20, 2021 Share Posted June 20, 2021 Very cool. Can't wait to hear your thoughts. Link to comment Share on other sites More sharing options...
stratocaster Posted June 20, 2021 Share Posted June 20, 2021 Am curious to learn what kind of motor will be used to drive this. Link to comment Share on other sites More sharing options...
Bill Posted June 20, 2021 Share Posted June 20, 2021 Yep, very cool looking. Two thoughts though. 1. Double check your deck suspension when you add this. I wouldn't necessarily expect it to tilt things, but the added spring compression will make the deck stiffer in the vertical direction and might add unwanted vibrational / isolation related effects. (Unless there's no deck suspension on your table. Then nevermind.) 2. Double check your table speed when you add it. The added weight will cause higher bearing friction, which might pull the platter speed down a smidge. Looks really nice though! Link to comment Share on other sites More sharing options...
nrenter Posted June 21, 2021 Author Share Posted June 21, 2021 I'm using a Teres Verus motor on a non-suspended table. The bearing (and the motor) can easily support a 65+ lb. platter. Given the outer diameter is not exactly the same as the original platter, and the motor couples via gravity to the outer diameter of the platter, I'll have to tweak the speed control. I can't imagine using a ~40 lb. platter on a suspended table. 1 Link to comment Share on other sites More sharing options...
ctsooner Posted June 23, 2021 Share Posted June 23, 2021 BEAST MODE!!! That's serious looking!!! Can't wait to hear your thoughts. Link to comment Share on other sites More sharing options...
nrenter Posted June 24, 2021 Author Share Posted June 24, 2021 The platter is filled and mounted! I had to use a zinc bushing as a spacer to raise my bearing by maybe 1/8”. Easy as pie. Right at 11 lbs of lead + 24 lbs of aluminum, Delrin and brass = 35 lbs of goodness. The solid acrylic platter weighed-in just over 13 lbs. According to my RPM app on my iPhone, wow and flutter dropped from a typical 0.20% to 0.10% on the 33.33 RPM setting. At the 45 RPM setting, I get wow and flutter readings between 0.06% and 0.10%. I hear 4 big changes: the attack, the decay, the sustain, and the imaging. Big changes. Big. Quite amazing, really. This is how vinyl is supposed to sound. However, the decreased diameter of the platter has caused 2 issues: 1) the motor “pulley” won’t reach the edge of the platter unless elevated, and 2) at maximum adjustment, I can only get the speed down to 33.41 RPM. I'm working with Chris Brady to install new controller firmware and swap a PCB in the controller to support a larger drive wheel. This is only an issue with early-gen Verus motors. The Verus II release (after SN 50) would not have had this issue. I happen to have SN 18. More than happy to refer the machinist to anyone who wants to partake in a similar project. 1 Link to comment Share on other sites More sharing options...
Steve Edwards Posted June 24, 2021 Share Posted June 24, 2021 That is one beautiful work of art Link to comment Share on other sites More sharing options...
Bill Posted June 24, 2021 Share Posted June 24, 2021 Looks fantastic! Do you use a felt pad to rest the record on? Link to comment Share on other sites More sharing options...
TomicTime Posted June 25, 2021 Share Posted June 25, 2021 Lovely !,,,, Link to comment Share on other sites More sharing options...
nrenter Posted June 25, 2021 Author Share Posted June 25, 2021 1 hour ago, Bill said: Looks fantastic! Do you use a felt pad to rest the record on? Nope. I couple directly to the Delrin. The brass screws are countersunk so they don’t touch the records. Link to comment Share on other sites More sharing options...
ctsooner Posted June 25, 2021 Share Posted June 25, 2021 That's just stunning. Would love to hear it. Congrats and keep this post going as you make adjustments. Link to comment Share on other sites More sharing options...
Bill Posted June 25, 2021 Share Posted June 25, 2021 I can't quite see the drive in your pictures but I'm guessing this is the rim drive version? (I think I've seen some belt drives that look really similar) Link to comment Share on other sites More sharing options...
nrenter Posted June 25, 2021 Author Share Posted June 25, 2021 Correct. It's the rim-drive (aka Verus motor / controller). You can see the motor pod in the photo w/ the acrylic platter (controller is not shown). I think the Teres bearing is MUCH happier with a heavier platter. The motor spins it easily. Rather than have Teres modify my original motor / controller, I may sell it as-is and simply purchase a new Verus II motor / controller. If your platter is ~12.24" in diameter, this is a nice way to spin it. Link to comment Share on other sites More sharing options...
Bill Posted June 25, 2021 Share Posted June 25, 2021 Cool. How does the interface pressure get set? Link to comment Share on other sites More sharing options...
nrenter Posted June 26, 2021 Author Share Posted June 26, 2021 Between the rim-drive motor pod and the platter? Gravity. It literally just leans against the edge of the platter. Link to comment Share on other sites More sharing options...
nrenter Posted June 26, 2021 Author Share Posted June 26, 2021 Here's a link to the controller / motor. Link to comment Share on other sites More sharing options...
nrenter Posted July 15, 2021 Author Share Posted July 15, 2021 To close the loop on this thread, my motor / controller have been updated my Chris Brady at Teres Audio - all new internal boards, upgraded heat sink, new drive wheel and updated firmware. To say I'm elated is an understatement. Link to comment Share on other sites More sharing options...
ctsooner Posted July 18, 2021 Share Posted July 18, 2021 I'd love to hear the table. I will say that it's a stunning piece of gear. I love that look. Link to comment Share on other sites More sharing options...
Bill Posted July 20, 2021 Share Posted July 20, 2021 Did you recheck the speed? Not sure I trust cellphones for their Gyro sensor accuracy. Repeatability is probably ok though. Link to comment Share on other sites More sharing options...
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