Skeletal vs Plinth style turntables


I am pondering a new plinth design and am considering the virtues of making a skeletal or closed plinth design. The motor unit is direct drive. I know that as a direct drive it inherently has very low vibration as opposed to an idler deck (please do not outcry Garrard and Lenco onwners coz I have one of those too) but simple facts are facts belt drive motors spin at 250rpm, Lencos around 1500 rpm, DD 33 or 45 rpm. That being the case that must surely be a factor in this issue. What are your thoughts. BTW I like closed designs as they prevent the gathering of dust.
parrotbee
Dear CT 0517

you say:
I used to say to myself ...hmmmm looks like a hole / space there. Wonder what would happen if I filled it ? When an audiophile based on theory alone, said don't do that, its not right because of xxxxxxx, but showed no real direct experience with it himself...... ..Hell..the more reason to go and do it.

This is a tad unfair given that you don't know what I do do, and what else I have built and fiddled with.

But FYI i have made a few Lenco plinths, and have also fiddled (that's what I call it) with a few belt drive decks to. In addition to this I have built quite a few speakers. In my experience when you keep mass loading you effectively just restribute the vibrations to a higher frequency often. The strangest/worst thing one can do is fill up a plinth with some type of permanent resin, and then be unable to remove it, or indeed sell the component due to the over-enthusiastic 'intervention/innovation'

As to the Obsidian - I never knew it was glass - I had always thought it was a non-resonating composite like the one on the SONY TTS - learn a new thing every day.
Timeltel.
Ha.. I marvel at the little things in analog that make big differences. Then we are trying to accurately measure an exceedingly little thing. I also marvel at the existence of intelligible music via a record given the "complications" that exist.

I would say that without stylus drag you have no music. The force it imposes is significant, observable and varying. It is one factor that must be considered when putting together a TT.
Parrotbee
This is a tad unfair given that you don't know what I do do, and what else I have built and fiddled with.

Hi Parrotbee
I didn't mean yourself when I said.
I used to say to myself ...hmmmm looks like a hole / space there. Wonder what would happen if I filled it ? When an audiophile based on theory alone, said don't do that, its not right because of xxxxxxx, but showed no real direct experience with it himself...... ..Hell..the more reason to go and do it.

I didn't even know of you up until last week ? Sorry for the confusion. I was referring to others in past dealings on this forum - like some of the debates on the Copernican thread.

It think it really goes back to my poker game analogy and cards showing. We would all benefit imo in knowing more about yourself/experiences being the OP but its your choice obviously.

fwiw -
My cards are all showing. In fact if you have read the ET2 thread and my system thread you probably know some things about me that my wife doesn't even know.

The strangest/worst thing one can do is fill up a plinth with some type of permanent resin, and then be unable to remove it, or indeed sell the component due to the over-enthusiastic 'intervention/innovation'

I agree and Blue tac(k) is reversible. In fact I can if I wanted take down the SP10 in its current config and set it up in a full plinth in one day. I have been searching for pictures of the different stages of plinth build I did. But they were taken with my old Blackberry (fwiw - A POS Canadian company that I lost money on -sorry for the rant). If they show up on a hard drive somewhere will post them. this thread brings back a lot of ANALogue memories.

Personally am intrigued over your moniker. I think it is really cool. Does it have meaning behind it ?

Cheers
02-10-15: Timeltel
---Just an enthusiasts' mutterings amidst the opinions of
experts.

Hi Timeltel (professor) - I am a music lover / part time
audiophile. If I have a question regarding cartridges, your
posted opinions are the ones I look for. You are a
cartridge expert in my view. Please excuse my grammar in
this morning's post :^(
Hi CT
I just love Parrots and Bees - nothing too sophisticated about that.
When I use my real name I have always had some bizarre report from Hong Kong telling me about starving children needing $1000 usd in 24 hours to a foreign bank account.
Sorry for taking offence in the earlier post.
I am also fiddling around with some cheaper DD's so I may experiment with other plinth materials - who knows - I only have so much time on my hands to potter around like a maniac