Sinosword / Jkoo Custom Nodachi
Mar 11, 2019 7:05:53 GMT
Post by van680 on Mar 11, 2019 7:05:53 GMT
I'm Van Yang from Jkoo Sword, it is my first time to comment in SBG because I saw many people worried about our blade heat treated. I have to say it was a big challenge for us to make Mr.Chan's Nodachi.
The first notachi with detailed specs as below ,
blade length 120cm, 4.2cm the same width from motohaba to sakihaba. 0.7cm to 0.25cm blade thickness.40cm tsuka length. the size which is similar as his Longship custom odachi which costed around US$3000, this is also our first time to forge a 120cm blade for Notachi and with the same width . He told us mostly of forges in Longquan are dared not to make such size blade for cutting.
We made similar blade size as requested,2500g sword weight without saya, around 25cm balance point. But it is too heavy to use for him and with bad balance point, He was very disappointed, maybe there had misunderstanding about the thickness between us when forge the sword, But the main reason is this sword was designed wrong for fast and heavy cutting. the result that he like the blade of heat treated and introduced his friends to order custom sword from us.We are still making a Chinese dao for his friend until now.
He accepted our advice to reduce blade width,Then we re-forged a new nodachi for him in half price. the detailed specs as below
blade length 120cm, 3.5cm the same width from motohaba to sakihaba. 0.6cm to 0.27cm blade thickness.40cm tsuka length. blade added bohi to reduce blade weight.
He also ordered a notachi for his student ,blade length 90cm, 4cm the same width from motohaba to sakihaba. 0.6cm to 0.2cm blade thickness.40cm tsuka length. blade added bohi to reduce blade weight.
We worried about there maybe a big risk for us to make a thin blade and long blade, We took blade pictures with measured and take a video to show the flexible blade.Mr.chan upload the video the blade not bent on that time.
We also did test cutting for the blade by ourself. Anyway ,the results he received bent blade and tip damaged. It is really disappointed for us because our blade made always got positive response so many years. we didn't protect the thin tip well before packing, We also can't exclude the problem on the shipping way, the package might be gotten rude treated.
I have to admit that we are lacking of experience to make thin and long blade for cutting purpose, Maybe the blade with bad heat treated ,maybe the blade hardness just 40 HRc as he said, the challenge is failed, The results is Mr. Chan have gotten full refund once he sent pictures to us, and Mr.Chan have fixed bent blades and showed us his skilled cutting with smile.
I appreciate Mr. Chan's hard work and helping all the time, We have to pay more attention on QC before packing and learn more for unusual cutting blade made. We always have confidence to make well heat treated for normal size blades.
The first notachi with detailed specs as below ,
blade length 120cm, 4.2cm the same width from motohaba to sakihaba. 0.7cm to 0.25cm blade thickness.40cm tsuka length. the size which is similar as his Longship custom odachi which costed around US$3000, this is also our first time to forge a 120cm blade for Notachi and with the same width . He told us mostly of forges in Longquan are dared not to make such size blade for cutting.
We made similar blade size as requested,2500g sword weight without saya, around 25cm balance point. But it is too heavy to use for him and with bad balance point, He was very disappointed, maybe there had misunderstanding about the thickness between us when forge the sword, But the main reason is this sword was designed wrong for fast and heavy cutting. the result that he like the blade of heat treated and introduced his friends to order custom sword from us.We are still making a Chinese dao for his friend until now.
He accepted our advice to reduce blade width,Then we re-forged a new nodachi for him in half price. the detailed specs as below
blade length 120cm, 3.5cm the same width from motohaba to sakihaba. 0.6cm to 0.27cm blade thickness.40cm tsuka length. blade added bohi to reduce blade weight.
He also ordered a notachi for his student ,blade length 90cm, 4cm the same width from motohaba to sakihaba. 0.6cm to 0.2cm blade thickness.40cm tsuka length. blade added bohi to reduce blade weight.
We worried about there maybe a big risk for us to make a thin blade and long blade, We took blade pictures with measured and take a video to show the flexible blade.Mr.chan upload the video the blade not bent on that time.
We also did test cutting for the blade by ourself. Anyway ,the results he received bent blade and tip damaged. It is really disappointed for us because our blade made always got positive response so many years. we didn't protect the thin tip well before packing, We also can't exclude the problem on the shipping way, the package might be gotten rude treated.
I have to admit that we are lacking of experience to make thin and long blade for cutting purpose, Maybe the blade with bad heat treated ,maybe the blade hardness just 40 HRc as he said, the challenge is failed, The results is Mr. Chan have gotten full refund once he sent pictures to us, and Mr.Chan have fixed bent blades and showed us his skilled cutting with smile.
I appreciate Mr. Chan's hard work and helping all the time, We have to pay more attention on QC before packing and learn more for unusual cutting blade made. We always have confidence to make well heat treated for normal size blades.