Peter KG's Bench

[tango]

Peter

 

You make me think about the cooking time.

I could test your way first but also, then, the slow cooking becouse all Roger´s articles have a simple way of doing things, with few elements and low probability of error.

That goes with my personality.

Wich method do you use wash oil?

 

Thanks for sharing

Tango

[Peter K-G]

Peter

 

You make me think about the cooking time.

I could test your way first but also, then, the slow cooking becouse all Roger´s articles have a simple way of doing things, with few elements and low probability of error.

That goes with my personality.

Wich method do you use wash oil?

 

Thanks for sharing

Tango

 

Tango

 

I don't wash the linseed oil. I found out by testing different types of linseed oil that Finnish cold pressed linseed oil used in paints, is ready to use as is. But I pre boil it for 4,5 hours in 95 °C (makes it siccative, the varnish dries without sun in 3-5 days).  I also lime it before mixing it with colophony.

 

I too cook the colophony in low temperture but not for a long time as Roger do (long cooking is only for dark color)

http://www.maestronet.com/forum/index.php?/topic/330521-cooking-colophony-down-for-color-low-and-slow/?view=findpost&p=630015

 

http://www.thestradsound.com/home/varnish

updated recipe with Mastic

http://www.thestradsound.com/ongoing/varnishcooking1372014

 

Peter

[tango]

Thanks Peter for answer , you are very gentle

Tango

[Peter K-G]

[tango]

¿?

[Peter K-G]

Oh sorry, wasn't ment as a respond to your post, just posting while out with my boat and the least on my mind is my bench - well maybe a little bit, otherwise i wouldn't post, would I

[tango]

Ha ha, I see you turn to starboard to take the picture. 

[Húslař]

Peter, how strong is Your UV Cabinet (have You black-lights tubes or something stronger). I have 6 blacklight tubes 18Watt-is it good for making Your ground?

[Peter K-G]

Peter, how strong is Your UV Cabinet (have You black-lights tubes or something stronger). I have 6 blacklight tubes 18Watt-is it good for making Your ground?

 

Yes, that would be the same strength that I use. Mine are not blacklight (Philips Actinic BL 18 W), but blacklight tubes should produce pretty much the same amount of UV.

 

[Peter K-G]

Replacing poor finger board

http://www.thestradsound.com/ongoing/replacingpoorfingerboard

 

Ordered this: http://www.mehr-als-werkzeug.de/product/390011/Fingerboard-African-Ebony-Master-Quality-Violin-44.htm

 

Hope it's of good quality

[Patrick KREIT]

Excellant resolution !

 

www.kreitpatrick.com

[Peter K-G]

Polished and ready for setup as soon as I get a new fingerboard

 

http://www.thestradsound.com/ongoing/polishing

 

 

 

 

[Fjodor]

Looks good! What do you use for polishing?

[Peter K-G]

Linseed oil and vienna chalk, but I can never decide if it was better unpolished because that's beautiful too

Before polishing I also used linseed oil and a little alcohol (Sinol) to rub out som unevenness.

 

Slowly I'm getting a grip on this varnishing thing, I think. Slightly too thick for my taste still, the next one will be perfect

[Patrick KREIT]

Peter

 

After polishing the varnish with oil and calcium carbonate, you can restore some sheen with  Super Niko (available in stores) or with “popote” (for which I provided the recipe on February 7, 2013 in MN post number 388 of the thread “What’s on your bench? (mk6)”). This yields a beautiful gloss that is not the brilliant shine of newly applied varnish. 

 

Now that you have mastered varnish and pigments, you should be able do it in 3 coats.

 

 

www.kreitpatrick.com

[Peter K-G]

Yes I have to, because that will be the Soil project!

 

Need to finish this one first

http://www.thestradsound.com/ongoing/firstimpressionofmarch2014

 

Fjodor, and LK if you read. This is the first one with Finnish top wood 

[Peter K-G]

Quick Spectrum analysis:

 

https://b36d28dc-a-62cb3a1a-s-sites.googlegroups.com/site/peterkgviolins/home/modal-goal---strad-average/March2014FFT_200-7000.jpg?attachauth=ANoY7crkHULE9MzcmayQNsxLkVxsIVJl2s6MxO_JCvfGTzjflDmzjJrtDFtOMSthLmsvplkk9cbEAlGT32YpQlRanT-Wh5Dp1hFvvhlfw0JrR4xU8FJMrsJ7_gSDzESO45z-6zhUPdpuAiZQhZHcKuqlWYtkUTSnQ9bZlObnt5XD_ECnGNVZnTjcwZIQl6hrkxKTN4QpcJFgEOY4H-qwT5AZPS6Ivug3ojHehvkkF4PfBoXtqsi_EEt0qbfTAVuwnwZKcSPA8qQAm-bNaZ6dNH1zueLaolfnyw%3D%3D&attredirects=0

 

A1 and B1- are very close. The violin is really easy to play and surprisingly clean and pure although it has only been played a couple of hours. It's much better than I expected!

 

On to the next one

[Patrick KREIT]

-A1 and B1- can be identical, without detriment to the violin’s sound.

 

-What matters is not the wood’s origin, but its properties: celerity, elasticity, and capacity for water absorption.

 

-In view of the delta between modes B1- and B1+, the strings need to be relatively firm, so that they withstand strong pressure from the bow without saturating (il Cannone).

 

The sound can only be better and better when your plate tuning is successful the first time around, without having to regraduate the thicknesses.

 

www.kreitpatrick.com

[Fjodor]

Yes I have to, because that will be the Soil project!

 

Need to finish this one first

http://www.thestradsound.com/ongoing/firstimpressionofmarch2014

 

Fjodor, and LK if you read. This is the first one with Finnish top wood 

 

Congratulations on the newly finished violin. It's good to know that the spruce is alright (having bought a lot

It would be interesting to try the violin. How does it compare to the previous one?

I thought that one was very good, very even and responsive all over as well, even though it was "fresh".

[Peter K-G]

Yes the wood is magnificent. The only problem I had in the start was that it was too wet. (that should not be a problem anymore, I have measured the other tops). After I had artificially seasoned it in UV I had no problem with it. This one was also the least good from my pile. You can also see from images that it is not perfectly straight cut.

 

I would say that the violin has many characteristics like the previous one but more "silvery" on the high end, with a lovely darkish timbre on the low end, so it has more contrast between G and E strings. It's also more pure and easier to play. B1+ mode is even higher in DB level which surprises me a little. The top is almost 10 g heavier (75+ g) and the back is 5 g heavier. The bass bar is also heavier and higher (11,7 mm, compared to 10,3 mm prev.). The top graduation distribution is relatively thicker in the middle and thinner in upper and lower regions (1,85 - 2,9). The previous one had wood of 0,37 SG this one 0,47 SG (at 6% MC). Speed of sound about the same. The back plate had really low speed of sound compared to the prev. one.

 

It likes to be played with the bow "glued" to the strings and slowly bowing. Not the slightest raspy on any strings in higher positions (as far as I can reach). 

 

LK is planning a visit to show his last two violins and to deliver a re-haired bow to my father in law. Maybe you could join him and pay a visit and bring one of your violins too, that would be nice

[Fjodor]

Sounds like it is a success then! I was also pleasantly surprised with my latest that had a high density top.

Kombä jään me lk om ja har passlit tå, å kan ta me en fiol så får vi spela na!

[Peter K-G]

Followed Curious1's way. Ipad seems to be the best way to do amateur recordings in a smaller room (3,5 x 4 m)

 

March2014_A.mp3

 

In reality the lower notes are not that muffled and it's sound is sweeter. Spectrum capture (4096) of the recording.

 

 

 

 

 

[Patrick KREIT]

Peter

 

Do you have the latest version of AUDACITY that enables analysis of the spectrum up to 65536?

 

The harmonics within the sounding box are quite audible when you play high notes. The low notes are consistant.

 

Good work!

 

www.kreitpatrick.com

[Peter K-G]

............... yes now I have it

 

not that it matters, but here is the 65536 spectrum

 

 

(easier to find modes, thanks!)

 

 

 

 

[Peter K-G]

Time to move on to the next porject - The Soil which is my favourite Strad.

 

http://www.thestradsound.com/ongoing/startingthesoilproject