Bob Sp

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Posts posted by Bob Sp

  1. That fiddle in post 104 looks awesome.  


    " essential oils recently. being her on call BS meter, I get to hear all about it",  


      I'm in the same situation.  No matter what ails you, there's an oil for that.   (facepalm)


    Yup. . . Popeye had spinach and Olive Oil.  :P

  2. Pressurized doesn't mean "sea level".  Passenger jet cabin pressures exhibit a wide excursion (for those who get to enjoy military and dependents "space available", military is worse).  One ECS curve I used to be familiar with used ambient to 7000 feet ASL, then 7000 (more or less) all the way to ceiling.  On approach, it came back down the other way.  Trapped air in say, glue, expands and contracts.


    VDA is right on the money.  The airplane cabin is pressurized to usually be equivalent to an altitude of 5000 to 7000 feet above sea level (never more than 9,999 feet) regardless of the altitude of the airplane.  Airliners frequently cruise above 30,000 above sea level. 


    Here is a not so trivial fact. Under those cabin conditions, one drink can go straight to your head. At the equivalent of 8,000 feet in the air, one drink can hit you like two on the ground.  Your blood alcohol level is the same, but your body is metabolising things differently, intensifying the effects.  :blink:

  3. I wonder how baggage compartments of airlines relate to this point?  Maybe things are different now, but twice in the old days I saw players who were forced to put instruments into baggage end up with damage.  One viola got a bad crack and a 'cello had a grafted scroll just pop right off.  I remember examining the viola after we landed and it was ice cold.  Is it just the lack of humidity, or can it be a combination of dryness and cold?  Any reason why altitude itself would cause a problem? 


    All baggage compartments are not created equal, but most modern jets have heated and pressurized baggage compartments.  That is why they will accept dogs in kennel crates and put them in the baggage compartments.  The circumstances where your baggage really is subjected to the extremes is during winter when the loaded baggage cart is lef outside, especially waiting for a connecting flight or just waiting to be loaded.  The other challenge to your baggage is the long conveyor systems used at large airports with their chutes and slides.  Your baggage can end up being slammed around in there.


    Animals are kept inside, loaded last, unloaded first and taken immediately into shelter.  Maybe there is an option to have instruments treated the same way?  (The Image of a violin case in a dog suit pops into my mind!)

    And, yes I did this sort of work in the '80's.

  4. Mike, That's before it even arrives at the Canada border; when it arrives I'll have to pay duty, the exchange rate (which isn't very good right now) and brokerage. I order parts from the U.S all the time, so I have a pretty good idea where the average shipping rates are cost-wise. Fifty dollars seems exorbitant for this size and weight of a package. I actually prefer USPS for all shipment; the prices are reasonable, I've never had anything lost by them, and most times Canada Post waives any additional duty fees if the item is under $200.00 of value.


    As a side note, I order a lot of electronic parts from Digikey in the U.S. They have an amazing shipping service: I can place an order on a Wednesday afternoon, and they will have the parts delivered to my door by noontime the next day, for about $8.00 shipping. They apparently have some special agreement with their shipping company.


    I found out that USPS works especially well for small parcels coming to Canada from the US if you ask to have it sent US 1st Class Parcel Post.  This designation is not available in Canada (where parcels cant be 1st class), When a US first class parcel hits Canada Post it continues on in the system as 1st class! Nice!  And as you say it rarely gets hit with fees when it is small.

  5. The amplified violin is already showing us sounds that haven't been in the forefront before.  "As good as" is subjective. 


    The baroque violin is different from the modern acoustic and very different from the electric.  Gut strings are different from synthetic or metal. 


    Evolutionary? - I don't think so.  Exploratory? - definitely.  Good, better, best? - your choice.

  6. Hey Bob,

    Here's the quick news from Roswell, NM.

    This morning sunny and warm, and the snow is all completely disappeared...

    So - the animals are outside and the yardwork continues.


    It's just like summer again here today - but we may see another day of rain/snow yet!


    Sounds lovely and we may be there in another 6 to 8 weeks.  I forgot to mention that the windchill this morning is -40 degrees. 

  7. Opinion = a personal and subjective viewpoint, with or without basis in fact, knowledge or reality.  There is an obligation to repect a person's right to have an opinion, however this does not extend to an obligation to respect that opinion.  An opinion is the result of a personal perception and it must be remembered that illusions & delusions are personal perceptions.


    And what Violadamore said  -_- .

  8. Personally, I'm a Resurrectionist  ;)  It's the cheapest way to get partially finished kits of antique wood.  [shoulders her shovel and heads out in search of inventory in the violin graveyards of the Internet, while singing a jolly Scots ditty about "Burke and Hare"].



    Believe it or not this picture is entitled "The Resurrectionists at Work".


    And I'll never get this out of my head for hours =

  9. Hey, we almost left out:  "I like any kind of music as long as it's good."


    Doesn't that translate into the self-serving:  "If I like it, it must be good, since I have impeccable taste." ?


    I have used that phrase.  But usually after someone has said, "I only listens to (insert genre)." in an arrogant and dismissive voice rejecting every other genre as junk.

  10. According to the Wikipedia article, "white spirit" is most commonly called "paint thinner" in the US. My instincts are telling me that it would be reckless to assume that would always be safe to use on any violin finish.


    This can be very confusing, especially when "white spirit" and "white gas" are referred to. The key is in the table in Wikipedia where naphtha is mentioned in the "Chemical Number" table.


    The definition of naphtha provides some of the confusion -'> By the way "Stoddard Solvent" is another name for Varsol.


    What most people think of as naphtha in North America is also called white gas or Coleman Fuel. It is also a major part of 'Zippo' lighter fluid.  It is lighter than "white spirits" which is in the kerosene family.  The reason I mention this is because this can be a less aggressive solvent on some surfaces.


    It is safe to say that most paint thinner you buy is from a petroleum mineral source whereas turpentine is from a plant/vegetable source.


    Wikipedia - "Mineral spirits are an inexpensive petroleum based replacement for the vegetable-basedturpentine. It is commonly used as a paint thinner for oil-based paint and cleaning brushes, and as an organic solvent in other applications. Mineral turpentine is chemically very different from turpentine, which mainly consists of pinene, and it has inferior solvent properties. Artists use mineral spirits as an alternative to turpentine since it is less flammable and less toxic. Because of interactions with pigments, artists require a higher grade of mineral spirits than many industrial users, including the complete absence of residual sulfur."


    So "Mineral turpentine" or "white spirits" isn't turpentine.


    Regardless of any of this - they aren't the same but they are all solvents and need to be used very carefully on any finish.

  11. When Erich Korngold did the orchestration for his overture to the 1938 movie "Adventures of Robin Hood" (for which he won an Academy Award) he insisted that the string section use nothing but Markneukirchen instruments.











    He needed as much saxon violins as possible......... :) 

  12. There has been discussion on dilutions and temps but no mention of the 'bloom' strengths.  (Insert flower puns here) 


    To round out the glue discussion which gram strength do you you use?  I've seen stuff available from 150 to over 400 gram. I've never tried the high gram strengths - been scared away by the very short working time.


    Nobody has any comments or advice on which hide glue they use?  :unsure:

  13. There has been discussion on dilutions and temps but no mention of the 'bloom' strengths.  (Insert flower puns here) 


    To round out the glue discussion which gram strength do you you use?  I've seen stuff available from 150 to over 400 gram. I've never tried the high gram strengths - been scared away by the very short working time.