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New videos by Andrey Yumanov

Posted: Fri Jan 19, 2018 7:38 pm
by Mac
These two are bit of a departure from his usual videos, in that he lectures. Unfortunately, I have no Russian, but he does do nice work.

https://www.youtube.com/watch?v=4ILoNpKT4XA

https://www.youtube.com/watch?v=s5zuhLevZng

Mac

Re: New videos by Andrey Yumanov

Posted: Fri Jan 19, 2018 11:54 pm
by Gerhard von Liebau
His videos are great! By the way, he's Ukrainian, not Russian. At least until he gets used to living under Russian auspices in Simferopol. ;)

Re: New videos by Andrey Yumanov

Posted: Sat Jan 20, 2018 2:12 am
by MediumAevum
Gerhard von Liebau wrote:His videos are great! By the way, he's Ukrainian, not Russian. At least until he gets used to living under Russian auspices in Simferopol. ;)
Just because someone lives in Ukraine or was born in Ukraine doesn't make them Ukrainian. Same is true for Russia. In fact the majority of people who lived in the Crimea in 2014 identified as Russian.

Re: New videos by Andrey Yumanov

Posted: Sat Jan 20, 2018 10:47 am
by Mac
I confess, I did not do anything to ascertain his nationality or ethnicity. I plugged his name in Cyrillic into Google translate, and it identified it as Russian.

All that aside, though... His work is very good, and his videos are nicely made. I don't always agree with his methods, but that's neither here nor there. The important thing is that his armor has the right lines. To me, that's pretty much everything.

Mac

Re: New videos by Andrey Yumanov

Posted: Sat Jan 20, 2018 10:56 am
by Gerhard von Liebau
MediumAevum wrote:Just because someone lives in Ukraine or was born in Ukraine doesn't make them Ukrainian. Same is true for Russia. In fact the majority of people who lived in the Crimea in 2014 identified as Russian.
Well, on his Facebook he says he lives in "Simferopol, Ukraine." I suspect he's not a Russian living in Crimea if he still recognizes it as Ukraine. I may be wrong.

In any case, it shouldn't matter to us. I just point it out because it usually matters to them. I think his videos are rather excellent and I plan to go watch some more right now! Also, his English is apparently very good based on his posts on social media.

-Gerhard

Re: New videos by Andrey Yumanov

Posted: Sat Jan 20, 2018 2:05 pm
by Indianer
Hey guys. His backplate has 3 lames between the topmost and the bottom part. Are they attached via sliders? Mac, in that youtube recording of your lecture you told somewhere at the start, that this lames-principle was overexaggerated and then suddenly completely dropped...certainly for a purpose. I´d be glad on a quick thought on that, or two :)

Anyway, thanks for bringing this to attention. Btw...do you guys know his gorget (Edit: Bevor) video? A fascinating and fascinatingly simple way to produce a compound curve, so much unlike the Dubé way. I was stunned...though I really don´t understand how it works. Guess, it´s enough to know that it does :)

Edit: Here, the Dubé-video on a bevor (not gorget, sry), but also with a main plate on the sternum. He hammers that main plate form 2.27 to 3.40.
https://www.youtube.com/watch?v=OZoPRKsfZEM

Dubé composes the entire curvature of the main plate of smaller curves, introduced with a raising hammer along the entire piece. He angles the plate somehow while striking on air me thinks, imprinting local bends in a radiant fashion with the finished pieces center as the midpoint - assuming it were completed to a dome, not only the main plate. Sry...can´t describe it better :(
Main Plate-Dube.JPG
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Andrey on the other hand just dishes the main plate into a U-stake - Wade described it farther below. Here is a screenshot of my "pattern" the way I understood it.
4.JPG
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Andrey Main Plate 2.JPG
(41.65 KiB) Not downloaded yet
Best, Indi

Re: New videos by Andrey Yumanov

Posted: Sat Jan 20, 2018 3:36 pm
by Mac
Indianer wrote: His backplate has 3 lames between the topmost and the bottom part. Are they attached via sliders?
Sliders do not seem to be involved. If you look at the way the armscyes are hemmed, you can see that they did not expect any telescopic movement. Each of the hems overlaps the previous lame just a bit. This sounds hard to do, but it's really quite easy and natural once you understand what's happening.

Here is the first pic I could find that illustrates the thing about the hem. I'll come back and post more if I find any.

Image

Now, that said... There is some movement possible of the upper back assembly. The shoulders can move in and out just a bit. It's a springy, creaky sort of movement, but it's more than you would get out of a solid plate. This may be about accommodating the hinged juncture of the breast and back. If the shoulders can move a bit, it makes them sit better on the wearer's back when the straps are adjusted.
Indianer wrote:Mac, in that youtube recording of your lecture you told somewhere at the start, that this lames-principle was overexaggerated and then suddenly completely dropped...certainly for a purpose. I´d be glad on a quick thought on that, or two :)
I just skimmed that video till I found the place in question. It's around 25:47. My purpose there was just to point out the historic trend. I didn't speculate about the function or purpose.
Indianer wrote: Btw...do you guys know his gorget video? A fascinating and fascinatingly simple way to produce a compound curve, so much unlike the Dubé way. I was stunned...though I really don´t understand how it works. Guess, it´s enough to know that it does :)
I can't find that video on his page. Do you have a link?

Mac

Edited to insert pic.

Re: New videos by Andrey Yumanov

Posted: Sat Jan 20, 2018 3:53 pm
by MediumAevum
Gerhard von Liebau wrote:
MediumAevum wrote:Just because someone lives in Ukraine or was born in Ukraine doesn't make them Ukrainian. Same is true for Russia. In fact the majority of people who lived in the Crimea in 2014 identified as Russian.
Well, on his Facebook he says he lives in "Simferopol, Ukraine." I suspect he's not a Russian living in Crimea if he still recognizes it as Ukraine. I may be wrong.

In any case, it shouldn't matter to us. I just point it out because it usually matters to them. I think his videos are rather excellent and I plan to go watch some more right now! Also, his English is apparently very good based on his posts on social media.
This may sound odd but your one of only a few people on the AA I actually like because you are smart, unfortunately you also think that you are smart and that causes you to sometimes end up being too big for your britches.

Firstly if it doesn't matter and by and large in this case your right it doesn't then don't bring it up.
Secondly if you are going to refer to someone of unknown ethnicity from that part of the world you should refer to them as Russian because Ukrainians and others from the former Soviet Union are used to being called Russian and while they might correct you won't likely offend in the long term, whereas if someone is Russian and you call them Ukrainian you are much more likely to cause real offense.
Thirdly, ironically you fell into the very trap you were warning about. He didn't choose on Facebook what country he lives in, Facebook dictated that too him. Or perhaps just tells that to us as it may say that Simferopol is in Russia when you access Facebook from Russia.
Fourthly, many people who live in Crimea are very happy to be part of Russia again, despite the issues that may cause them.

Re: New videos by Andrey Yumanov

Posted: Sat Jan 20, 2018 4:30 pm
by wcallen
Indianer wrote:Hey guys. His backplate has 3 lames between the topmost and the bottom part. Are they attached via sliders? Mac, in that youtube recording of your lecture you told somewhere at the start, that this lames-principle was overexaggerated and then suddenly completely dropped...certainly for a purpose. I´d be glad on a quick thought on that, or two :)

Anyway, thanks for bringing this to attention. Btw...do you guys know his gorget video? A fascinating and fascinatingly simple way to produce a compound curve, so much unlike the Dubé way. I was stunned...though I really don´t understand how it works. Guess, it´s enough to know that it does :)

Best, Indi
He has a video on a bevor/gorget. It shows how he puts some curve into the lower plate. Maybe that is what you are thinking of?

It is this one:

https://www.youtube.com/watch?v=4sbqkXzUNrk

He is just bashing in a curved piece of huge pipe - a big version of what many people call an anti-clastic stake. I have never made one of those... I just end up using a pipe stake, RR track or bickhorn and tipping the piece. It does the same thing, but this takes some of the stress off of your hand.

Wade

Re: New videos by Andrey Yumanov

Posted: Sat Jan 20, 2018 7:29 pm
by Gerhard von Liebau
MediumAevum,

You're right, he can probably only choose "Simferopol, Ukraine" on Facebook! I think you could have left it at that.

And, by the way, he is speaking Russian. My wife was available just now for me to show the video to and she confirmed that. I ran some text from his Facebook through Google Translate earlier and it looked great in both Russian and Ukrainian, so I went with my gut feeling. My apologies for the earlier assumption. Cheers!

-Gerhard

Re: New videos by Andrey Yumanov

Posted: Sun Jan 21, 2018 9:18 am
by Indianer
Hello guys, I just edited my above post for some completeness. Should have done it that way right away. Wade, thank you for jumping in and answering Mac in my stead! :) That´s been kind. Haven´t been online to do it in time myself.

Mac, I´ll ponder about your revelations right now :)

Re: New videos by Andrey Yumanov

Posted: Mon Jan 22, 2018 11:04 am
by Mac
Indianer wrote: Anyway, thanks for bringing this to attention. Btw...do you guys know his gorget (Edit: Bevor) video? A fascinating and fascinatingly simple way to produce a compound curve, so much unlike the Dubé way. I was stunned...though I really don´t understand how it works. Guess, it´s enough to know that it does :)

Edit: Here, the Dubé-video on a bevor (not gorget, sry), but also with a main plate on the sternum. He hammers that main plate form 2.27 to 3.40.
https://www.youtube.com/watch?v=OZoPRKsfZEM

Dubé composes the entire curvature of the main plate of smaller curves, introduced with a raising hammer along the entire piece. He angles the plate somehow while striking on air me thinks, imprinting local bends in a radiant fashion with the finished pieces center as the midpoint - assuming it were completed to a dome, not only the main plate. Sry...can´t describe it better :(


Andrey on the other hand just dishes the main plate into a U-stake - Wade described it farther below. Here is a screenshot of my "pattern" the way I understood it.
Pretty much any plate that covers the throat and shoulders will need to have "anticlastic" curvature. The important difference between the finished plate and the starting piece is that the edges have to end up a bit "longer" than the middle of the plate. This it the thing that gives a potato chip its shape.

There are two basic ways to achieve this....
--you can stretch the edges.
--you can compress the middle.

Eric is stretching the edges by hacking at the inside of the plate with a cross peen hammer, while the plate is supported at an appropriate angle on an anvil.
Andrey is compressing the middle by hammering the outside of the plate over a saddle stake.

Either way will work, and it all depends on what tools you have and how you want to use them. Most of the time I do a bit of each, with an eye toward getting the results I want while producing the fewest hammer marks to be cleaned up.

That "cow tongue" you were grinding on your rail road track will make a good saddle shape for this sort of work.

Mac

Re: New videos by Andrey Yumanov

Posted: Mon Jan 22, 2018 6:27 pm
by Indianer
Hey Mac, thanks for your kind explanation. But I need to ask, do you mean I could use that cow tongue to dish like Andrey did on a U-stake? It is pretty shallow in comparison, isn´t it? The depth is ~6mm, as on yours. Have a good day all!

Re: New videos by Andrey Yumanov

Posted: Mon Jan 22, 2018 8:00 pm
by Mac
Indianer wrote:Hey Mac, thanks for your kind explanation. But I need to ask, do you mean I could use that cow tongue to dish like Andrey did on a U-stake? It is pretty shallow in comparison, isn´t it? The depth is ~6mm, as on yours. Have a good day all!
If the curvature of the stake is greater than the curvature that you need, then the stake will work for the type of forming that Andrey demonstrated. If the curvature is less than that, the stake will serve as a planishing surface.

Mac

Re: New videos by Andrey Yumanov

Posted: Tue Jan 23, 2018 4:45 pm
by Indianer
btw, here is the making of the cuirass he lectures about:
https://www.youtube.com/watch?v=efCPL4EYuic

He again demonstrates the habbit of condensing an area with that U-stake. He uses it to introduce the bend at the waistline of the 1st and 2nd lowest backplate lames. Curiously, for the lower plate with the fauld rest he dishes the waistline (4.24), and for the adjacent upper lame he dishes the top edge (5.56).

I guess he just dishes the edge that needs to be tightened more.

Greetings.

Edit: For the fellow readers:
Anticlastic Neck Lame.JPG
Anticlastic Neck Lame.JPG (36.28 KiB) Viewed 263 times