Calcom Posted January 10, 2019 Share Posted January 10, 2019 (edited) Had a crack at a double plinth setup based on project carbon tonearm and a few other project bits and pieces. I’ve got a CNC router so did all of the machining and polishing myself. First time I’ve attempted something like this and was a pretty good learning curve Working out correct geometry and noise isolation. Was a success all in all and the sound coming from it is pretty darn good. There is absolutely zero motor noise and definitely a lot less feedback into the player. Bass has opened right up and the overall sound is really nice. Just treated myself to a 2m black so se’ll see how detailed it really is. Edited January 10, 2019 by Calcom 18 Link to comment Share on other sites More sharing options...
Andrews_melb Posted January 10, 2019 Share Posted January 10, 2019 Impressive! Whats the motor/drive unit that you’ve used? Is the platter acrylic too or something else? Did you come up with the design yourself? looks great Link to comment Share on other sites More sharing options...
McCvinyl Posted January 10, 2019 Share Posted January 10, 2019 Great job Calcom I love your polishing of the acrylic edges.How did you do it ? Link to comment Share on other sites More sharing options...
andyr Posted January 10, 2019 Share Posted January 10, 2019 Impressive, Calcom - respect!! Andy Link to comment Share on other sites More sharing options...
joz Posted January 10, 2019 Share Posted January 10, 2019 Very very noice! Just wondering what made you do it? But looking forward to more of your listening impressions as you keep listening. Link to comment Share on other sites More sharing options...
Calcom Posted January 10, 2019 Author Share Posted January 10, 2019 Impressive! Whats the motor/drive unit that you’ve used? Is the platter acrylic too or something else? Did you come up with the design yourself? looks great It’s a pro-ject DC motor with integrated speed box controller. All components are acrylic and I designed it from scratch. Put the 2m black on and it sounds so sweet. Can’t wait for it to break in. 2 Link to comment Share on other sites More sharing options...
Calcom Posted January 10, 2019 Author Share Posted January 10, 2019 Great job Calcom I love your polishing of the acrylic edges.How did you do it ?Cheers. Lots of sanding and buffing!! 2 Link to comment Share on other sites More sharing options...
zippi Posted January 10, 2019 Share Posted January 10, 2019 Kudos!!!! What made him do it? I suspect: 1. At least a $700 if not a $1000 saving on a comparable OTS table (labour being free/hobby) 2. Satisfaction of having done it with own determination and resources 3. Knowing exactly how it hangs together, being able to improve and reproduce ad infinitum 1 Link to comment Share on other sites More sharing options...
Calcom Posted January 10, 2019 Author Share Posted January 10, 2019 4 hours ago, joz said: Very very noice! Just wondering what made you do it? But looking forward to more of your listening impressions as you keep listening. Cheers joz, I guess I'm a bit of a tinkerer and like to make things. Have the tools and equipment so why not! I recently upgraded my amps and speakers (emotiva & Whatmough Performance series) and found it revealed a lot about the project 1expression carbon classic I had. It had a hell of a noisy motor in it and I could hear the rumble coming through all the LP's I was playing. I tried the SE motor pulley upgrade, playing around dampening the motor and still could hear it coming through the music. After hours of reading and looking at things it was apparent I needed to de-couple the motor from the main plinth. I didn't want a remote motor so thought of building this concoction. I've since replace the cart, tonearm wire, bought some audioquest sydney interconnects and couldn't be happier with the results. I dare say soon down the track I'll be looking for a nicer tone arm to mount on it - but this will do for now! Who knows... I might build a few more.. 3 Link to comment Share on other sites More sharing options...
andyr Posted January 10, 2019 Share Posted January 10, 2019 33 minutes ago, Calcom said: Cheers joz, I guess I'm a bit of a tinkerer I would not call you a mere 'tinkerer', Calcom - but an optimizer! Most people don't have this gene. Andy Link to comment Share on other sites More sharing options...
audiofeline Posted January 10, 2019 Share Posted January 10, 2019 It looks very impressive - well done! Link to comment Share on other sites More sharing options...
Colin Rutter Posted January 11, 2019 Share Posted January 11, 2019 I am impressed Well doneI have a 6.9 Pro-ject and it needs the motor isolated as wellPity I don't have a CNC router but that's not a major life dissapointment Cheers Col Link to comment Share on other sites More sharing options...
joz Posted January 11, 2019 Share Posted January 11, 2019 19 hours ago, Calcom said: Cheers joz, I guess I'm a bit of a tinkerer and like to make things. Have the tools and equipment so why not! I recently upgraded my amps and speakers (emotiva & Whatmough Performance series) and found it revealed a lot about the project 1expression carbon classic I had. It had a hell of a noisy motor in it and I could hear the rumble coming through all the LP's I was playing. I tried the SE motor pulley upgrade, playing around dampening the motor and still could hear it coming through the music. After hours of reading and looking at things it was apparent I needed to de-couple the motor from the main plinth. I didn't want a remote motor so thought of building this concoction. I've since replace the cart, tonearm wire, bought some audioquest sydney interconnects and couldn't be happier with the results. I dare say soon down the track I'll be looking for a nicer tone arm to mount on it - but this will do for now! Who knows... I might build a few more.. Thanks for your reply. Well done with what you’ve achieved. You say you may build more? Have you got some improvements already planned or thinking you would do things somewhat different for some reason? Would love to hear it one day. Again, well done Link to comment Share on other sites More sharing options...
Calcom Posted January 11, 2019 Author Share Posted January 11, 2019 Thanks for your reply. Well done with what you’ve achieved. You say you may build more? Have you got some improvements already planned or thinking you would do things somewhat different for some reason? Would love to hear it one day. Again, well done [emoji106] Definitely have some more improvements in mind... although it’s everything I wanted it to be so far. The feet will be changed to something that can support the weight of the heavy acrylic a bit better Like the isoacoustics Gaia III and then I think I’ll enjoy it for a while. I’m about to build some solid timber shelving around my fireplace for it to sit on so that will make a massive difference. The modified Kmart stand with speaker spikes on it is a little light weight. I’ll will definitely make another one at some stage. Something more aesthetically pleasing again. Even considering designing and potentially making something commercially available. It’s definitely a passion of mine and I would love to take it to the next step. I would focus on making the arm board more universal and using better components. I still prefer the look of a double plinth with motor hidden than a remote belt/motor setup. We’ll see what the future holds!! 2 Link to comment Share on other sites More sharing options...
Martykt Posted January 11, 2019 Share Posted January 11, 2019 3 hours ago, Calcom said: The feet will be changed to something that can support the weight of the heavy acrylic a bit better Like the isoacoustics Gaia III and then I think I’ll enjoy it for a while. !! Beautiful work on your turntable @Calcom !! If you're looking for something like the Gaia feet @petng has a set of Combak Harmonix for sale. Very trustworthy seller too and his gear is always topnotch and immaculate. Link to comment Share on other sites More sharing options...
Jventer Posted January 11, 2019 Share Posted January 11, 2019 @Calcom Amazing, thanks for sharing. Link to comment Share on other sites More sharing options...
Mat-with-one-t Posted January 12, 2019 Share Posted January 12, 2019 Wow looks fantastic. As a few have asked, how did you tackle the polishing side of things? Link to comment Share on other sites More sharing options...
stevoz Posted January 13, 2019 Share Posted January 13, 2019 Nice work @Calcom. I have often looked at my brother's PROJECT 6PerspeX SB Turntable and thought, I could build something like that (and still might)......but unlike me, you have actually done it. Inspiring stuff! Link to comment Share on other sites More sharing options...
Calcom Posted January 13, 2019 Author Share Posted January 13, 2019 Wow looks fantastic. As a few have asked, how did you tackle the polishing side of things?Sanded with 240, 320 then 600 grit on an air sander. Then polished it with a buff wheel on a linisher. I own a sign manufacturing company so it’s something we know how to do well. 1 Link to comment Share on other sites More sharing options...
awty Posted January 13, 2019 Share Posted January 13, 2019 Very impressive. Everything sounds better when you make it yourself. Link to comment Share on other sites More sharing options...
anandpkumar Posted February 2, 2019 Share Posted February 2, 2019 Just saw this one......very impressive build! There's nothing like making something on your own! Cheers. Link to comment Share on other sites More sharing options...
anandpkumar Posted February 2, 2019 Share Posted February 2, 2019 Just saw this one......very impressive build! There's nothing like making something on your own! Cheers. Link to comment Share on other sites More sharing options...
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