jacal01
You've just been blocked by Mr. Conviviality!
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What a long, strange trip it's been -- (Robert Hunter)
- Thread starter Baldr
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bosiemoncrieff
Headphoneus Supremus
Happy lunar new year - gong hay fat choy!
HumanFly
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XianNin Kuaile!
(hey...I tried)
(hey...I tried)
Jones Bob
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Gong Xi Fa Cai, Hong Bao Na Lai!
HumanFly
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Well, with all this Schiit coming to market this year we better be very, very prosperous.
artur9
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IIUC it's the year of the pig so we're all happy as a pig in Schiit I think.
wink
His amps are made out of recycled beer cans
and his source from tomatos.
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Jones Bob
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Jason’s latest blog post on the first artlcle build of the new Schiit Sol turntable suggest comments be directed here.
From my past experience in designing and verifying precision ground cylindrical parts used in mechanisms, the process used to manufacture them has a few twists when the QC comes.
Specifically, if the parts are produced using precision centerless grinding, finished parts are left with an odd number of lobes, resulting from the odd number of rollers restraining the shaft during the grinding process. A conceptually worst case one would have a 3 lobed Reuleaux triangle shape (https://en.m.wikipedia.org/wiki/Reuleaux_triangle). By simply measuring using a 2 point check with calipers (across the high points), the resulting measurement will be of the large radius, and not of a cylindrical diametral envelope. In fact, the lobes measured with calipers within “spec” will violate the desired 3D geometric design envelope of a true shaft. The intended running allowance (Fit) between the shaft and bushing will be compromised. Properly addressing and verifying these Fits are maintained between moving parts, has a large effect on a mechanism’s function.
The above example is not as extreme in actual practice with more than 3 lobes are involved, but helps make visual the unseen inspection errors encountered.
Best way to inspect the parts, is to first use a GO Ring Gage the length of the shaft’s size maximum material condition (see Taylor Principle/Rule #1 -ASME Y14.5 Dimensioning Standard https://www.engineersedge.com/Edge_disc3/0000007a.htm) to pass the shaft though to first qualify that the part does not violate the specified 3D envelope, then use calipers to quantify that the size is within spec.
https://pmpaspeakingofprecision.com...-triangle-effect-pseudo-roundness-and-lobing/
Good luck! Really looking at how this turns out.
From my past experience in designing and verifying precision ground cylindrical parts used in mechanisms, the process used to manufacture them has a few twists when the QC comes.
Specifically, if the parts are produced using precision centerless grinding, finished parts are left with an odd number of lobes, resulting from the odd number of rollers restraining the shaft during the grinding process. A conceptually worst case one would have a 3 lobed Reuleaux triangle shape (https://en.m.wikipedia.org/wiki/Reuleaux_triangle). By simply measuring using a 2 point check with calipers (across the high points), the resulting measurement will be of the large radius, and not of a cylindrical diametral envelope. In fact, the lobes measured with calipers within “spec” will violate the desired 3D geometric design envelope of a true shaft. The intended running allowance (Fit) between the shaft and bushing will be compromised. Properly addressing and verifying these Fits are maintained between moving parts, has a large effect on a mechanism’s function.
The above example is not as extreme in actual practice with more than 3 lobes are involved, but helps make visual the unseen inspection errors encountered.
Best way to inspect the parts, is to first use a GO Ring Gage the length of the shaft’s size maximum material condition (see Taylor Principle/Rule #1 -ASME Y14.5 Dimensioning Standard https://www.engineersedge.com/Edge_disc3/0000007a.htm) to pass the shaft though to first qualify that the part does not violate the specified 3D envelope, then use calipers to quantify that the size is within spec.
https://pmpaspeakingofprecision.com...-triangle-effect-pseudo-roundness-and-lobing/
Good luck! Really looking at how this turns out.
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PioBeer
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Mike, a few questions:
1.)Do you have any lingering concerns about the Hurst compared the the one you were gonna use (but can't get anymore since they don't make them)?
2.)Does the new Hurst motor look similar to the one from the Darko video a couple years ago?
3.)Any plans on an other option for a phono pre-amp (perhaps a tube model) to coincide with the Sol? Would love to see a tube phono preamp
1.)Do you have any lingering concerns about the Hurst compared the the one you were gonna use (but can't get anymore since they don't make them)?
2.)Does the new Hurst motor look similar to the one from the Darko video a couple years ago?
3.)Any plans on an other option for a phono pre-amp (perhaps a tube model) to coincide with the Sol? Would love to see a tube phono preamp
ScubaMan2017
Headphoneus Supremus
Source: www.pinterest.com URL: https://i.pinimg.com/736x/81/26/ae/8126aea83a8276b62122f3d5ed2b6598--bruce-campbell-evil-dead.jpg ; downloaded 17:03, Feb. 6, 2019. Author: unknown.
That's MISTER Nerd to you, eh.
rkw
Headphoneus Supremus
Heads up for those in the SF Bay Area.
San Francisco Symphony and Chorus will be performing Carmina Burana at Davies Hall on Tuesday, June 4th (one performance only). Originally, this was scheduled on a different date as a concert for the SFS Chorus (without orchestra). I guess they managed to pull together an event with the full orchestra.
https://www.sfsymphony.org/Buy-Tickets/2018-19/San-Francisco-Symphony-Chorus-Carmina-Burana.aspx
Tuesday may be inconvenient for many people, but I guarantee it will be worth it. You'll discover how deficient your audio system is
. I've mentioned before that I recommend the 2nd tier for the best sound at Davies Hall.
San Francisco Symphony and Chorus will be performing Carmina Burana at Davies Hall on Tuesday, June 4th (one performance only). Originally, this was scheduled on a different date as a concert for the SFS Chorus (without orchestra). I guess they managed to pull together an event with the full orchestra.
https://www.sfsymphony.org/Buy-Tickets/2018-19/San-Francisco-Symphony-Chorus-Carmina-Burana.aspx
Tuesday may be inconvenient for many people, but I guarantee it will be worth it. You'll discover how deficient your audio system is
. I've mentioned before that I recommend the 2nd tier for the best sound at Davies Hall.
ScubaMan2017
Headphoneus Supremus
@Baldr ...sir, I noticed this question on Mr. Stoddard’s thread. I’m a digital guy; however, I’m trying to educate my (49 year old) brain. Looking forward to your next chapter/musings...
bosiemoncrieff
Headphoneus Supremus
Beethoven's violin concerto arranged for the piano is some weird schiit. It's one of those things I know is a thing, but I tend to forget...I vastly prefer it for the native violin.
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