Twsbi Diamond 530 Piston Seal Leakage Report 2010/07/20

The Fountain Pen Network: Twsbi Diamond 530 Piston Seal Leakage Report 2010/07/20 - The Fountain Pen Network

Jump to conten

Posted Today, 07:57 AM

TWSBI Diamond 530 Piston Seal Leakage Report 2010/07/20

As you may have known that from the first 300 FPN pre-sale pens we found certain pen has seal leaking issue. Here in short are the explanations and solutions.

PISTON VERSION
Piston version 1.3 : The final version before mass production. The design of this version works fine without problem providing the parts dimension is within the spec. All of the early day samples were made by this version.

Piston version 1.3b1 : First mass production batch of version 1.3, but being found some parts are out of spec on sealing ring size.

Piston version 1.3g1 : version 1.3 piston made by harder material to enhance the contact force to the barrel inner wall.

Piston version 1.5 : new version design, sealing rings outer diameter and wall thickness be increased to enhance the contact force to the barrel inner wall. Aiming to eliminate 100% water test procedure during production.

BARREL VERSION
Barrel version 1 : Current version with large inner wall tapering angle to facilitate ejection of core pin during injection molding, so not to leave scratch mark on inner barrel wall.

Barrel version 2 : Future version with reduced inner wall tapering angle, if successful, will made piston design easier and even harder material can be used, this will make piston design and manufacturing easier.

STATUS
Phase 1 : Pen made with piston version 1.3b1 without water leak test.
Minor leak: small sign of ink pass through seal 1, no ink reaches seal 2
Medium leak: larger amount of ink pass through seal 1, did not break through seal 2
Major leak: ink passes through seal 1 and seal 2
Number of pen sold: 300 FPN pre-sale plus roughly 50 others, total around 350 pens. From customers' feedback around 110 leak pen, most of them are minor to medium leak, only 2 or 3 major leak. Twsbi will send replacement parts for repair.

Phase 2 : Pen made with piston version 1.3b1, but with water leak test, without pen tapping against desk top. A few feedback came in reporting still some leakage. Immediately we made house check on 10 completed pen (same batch from 160 speedy carry to LA) ink filled, drop test from 20cm high to desk top(blind cap head down), 1 out of 10 pen has minor leak, I estimate the leak rate can be 10%. If sold pen still found leakage, Twsbi will send replacement part for repair.
Number of pen: 160 pens speedy hand carry to USA plus roughly 20 pens sold by Taipei office. Total around 180 pens.

Phase 3 : Piston version 1.3b1, water leak test, pen tapping against desk top. Few pen left house already. These few days we are still confirming the result.

Phase 4 : Piston version 1.3g1, water leak test, pen tapping against desk top. We anticipate will have no leak issue.

Phase 5 : Piston version 1.5 + barrel version 1. I strongly believe this will permanently prevent seal leaking problem.

Phase 6 : Piston version 1.5 + barrel version 2. We will enter the real test soon, as I heard the barrel version 2 sample came out already. This will be the ultimate solution I wish to see it success.

I feel really sorry for the inconvenience that bring you and hope the solutions will bring back your trust to the TWSBI brand we try to establish.

Sincerely Yours
speedy

Twsbi Diamond 530 Piston Seal Leakage Report 2010/07/20

Where To Buy Twsbi Diamond 530, especially for International buyer - 好康優惠公告區 - 筆蘊人生 真價值 - Powered by Discuz!

As closer and closer to the launch date (estimate mid of July 2010), I got many inquiry asking where can they get the Diamond 530 pen, so I make a posting here again to make it easy for interested user.

for USA, we will have USA ebay store at
http://stores.ebay.com/twsbipenstore

for Taiwan, we have many online stores, major one are
http://store.pchome.com.tw/multipen/
http://tw.mall.yahoo.com/store/twsbi

for China, we have taobao at
http://twsbi.taobao.com/

Other countries, we do not have our won online stores now, my suggestion is, please email your inquiry direct to our Taipei office
info@twsbi.com
Please write down the pen, nib size, quantity you are interested
Your name, address, phone number
my people will check the shipping and handling cost for you and email you the final price; pen + shipping & handling
at the moment we can only accept paypal payment, if this is ok for you.

Wish all of you enjoy writing with Twsbi Diamond 530 and other pens to come.

Cheers
speedy

Notice To 300 Pre-sale Twsbi Diamond 530 Owners

Media_httpwwwfountain_zrtxf

We found some pens on first 300 pre-sale pen has minor leaking problem between line 1 and line 2 of the piston. This won't affect the writing performance of ink storage, but unpleasant to look.
Let me know by mail ( speedy@twsbi.com) if your pen has this issue and I will send you new piston part for replacement.

twsbi Diamond 活塞鋼筆進度報告2號樓 2010/06/02更新

2010/06/02 更新

http://www.bbs.twsbi.com/viewthread.php?tid=168&page=1&extra=#


好久沒報告進度了,唉!還不都是些試量產的收尾工作沒到位,持續修定所延誤。現大問題多以解決了,就是生產需點時間罷了。
最新時間表:第一批的 300支預定6/15完成(但這些都是要寄美國的,Mark 所處理的 FPN 預購案)。其餘的約4,700支要到六月底才可生產完成,屆時分發台灣,大陸,美國等。台灣不用運送所以六月底就可上架,大陸需最少兩星期(7/15),美國海運可能要一個月(7/30)。大致這樣了。
請各位看看外包裝盒吧。照片上這紙盒是打樣品,正式盒會更漂亮些。

It's been a while since last update, all due to some minor correction during small batch test run that caused the delay. Now all the major problem has been resolved, just need a little more time for production run.
Latest schedule: the first 300pcs pilot run will complete on June 15th (these pens are for FPN pre-sale). The rest 4,700 pens will be ready on end of June, by then these pens will go for Taiwan, China and USA. Taiwan need no shipment so end of June can be on market. China need about 2 weeks shipping, so about July 15th. USA need about 1 month shipping, end of July. 

Show you the final packaging (carton box out side the plastic box). Paper box in photo is sample, formal one will look nicer.

Diamond_530_paper_box

三文堂 Diamond 得獎公告,reddot award

Media_httpwwwbbstwsbi_bnjau

Dsc00502

得獎德榮耀是屬於參與這項計畫的廣大網友們。

恭賀本公司最新開發之產品 TWSBI Diamond 530 活塞上墨鋼筆榮獲世界三大設計獎之一,德國 reddot 產品設計大獎,reddot design award – winner 2010。
這是一款經由全新設計概念發想而形成的產品。主要是透過互連網上眾多鋼筆論壇與鋼筆愛好者間相互溝通以確實了解使用者需求據以形成產品規格而進行之開發計畫。施行期間亦就開發中之各項進度隨時透過互連網告知眾網友,使其參與過程的困難與喜樂。請參 筆蘊人生論壇 之 http://bbs.twsbi.com/forumdisplay.php?fid=6
本新筆開發計畫歷時幾近一年,目前已到最後完成階段,預計將於今年五,六月間正式上架銷售,屆時還望各位不吝參觀選購。

Congratulations! Our new product TWSBI Diamond 530 piston filling fountain pen won the German Reddot design award–2010.

This pen was developed by using a brand new design concept, by Internet interactive discussion with the fountain pen lover so to learn and confirm the final specification of the pen. The development stages were also posted on the Internet to let the people be more involved in the progress. For more information please refer http://bbs.twsbi.com/forumdisplay.php?fid=6

The pen is now on the final stage ready for mass production. It is scheduled be available in our web stores around May or June of this year.