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difference in color between PEEK Black and conventional black resin Hello, this is Fountain Pen Research.This is the color difference between PEEK black vs conventional black resin (general-purpose plastic such as PP, acrylic (plexiglass), ABS, PC, etc.).Unlike the black color of regular pastics that usually comes to mind when thinking of black,I found that the PEEK black was different.I didn't notice when it was in rod form (unmachined).As I machined the materi..
PEEK (Black) grip section 8 types development inititated Hello, this is Fountain Pen Researcher.While developing PEEK (tan) and Ultem grips,I decided to try the PEEK black material.Although the material color is black,It is somewhat unusual in that it is silvery black. Since the design of the grip section is nib-housingless type,Precision is very important.Normally, 0.01mm precision is optimal.0.02mm precision in the minus direction is not acceptible...
Ultem grip sections (8 types) developed. Ultem grip section (8 types) have been developed. I wanted to develop 14 types like Peek, butDue to a shortage of materials, only 8 types were selected and developed.Ultem is a transparent material so you can see the inside.It was more difficult than usual, because internal areas must be machined as clean as possible.Due to the transparent nature of the material, you can see,Depth at which the n..
Ebonite Feed compatible Ultem grip section, development initiated Following the last 14 types of peak grip parts, I also started developing the Ultem grip section (ebonite feeder compatible). Because of limited materials this time, I will limit the types to less than 10. The grip part below is unpolished. This is how it looks like without ink. Below is what it looks like after it's filled. I think the internal appearance will change over time, but this is roug..
What is PEEK ? (Material) PEEK is used in Semiconductor equipments, medical devices, and extreme situations where all other general plastics fail. PEEK is a super engineering plastic, with the following characteristics:1) superb chemical resistance (not affected by Acids, alcohol, acetone, and other harsh chemicals)2) high temperature resistance (max continuous use 260C) (general plastics will get distorted even at Sub 1..
O-Ring for Ebonite feed compatible Grip section ◆ contact:  beatmaster90@naver.com1. Please send the URL (current page web address)     or the title of this page2. include your name (for easier email management)(may not respond fast, depending on order status, etc. but will respond eventually. processing request mails by chronological order.)  ◆payment methods: Paypal(contact me via email)  ◆ Please check the following page for detail:https:/..
No. 1~14 PEEK Grip sections Development Completed ! No. 1~14 PEEK Grip sections Development Completed ! these are ebonite feeder (11 types) compatible grip sections11+ different kinds of nibs can be installed if matching ebonite feeder is used.Con70 / 40 / eyedropper compatiblecompatible with all pen models, developed since 2023.there may be some variation of color difference with existing models(PEEK manufacturer told me, PEEK color varies a bit..
No. 10~12 PEEK Grip sections have been developed 10. Vintage Taper 11. Vintage Arc 12. Pipe
No. 7~9 PEEK Grip sections have been developed 7. One-Piece 8. Shift Arc 9. Hourglass Short
Sealing of Con-70 has been enhanced by using an O-ring *** We no longer officially recognize Con-70 / Con-40 as converter for Eureka fountain pen models.We only officially accept Eureka ultem ink cartridge as ink storage device for our pens. there has been several feedbacks regarding ink leak @ Con-70 & grip section end. most of these feedbacks were solved by following my instruction tutorials regarding con-70. so, most of the time the leaking is du..
No. 4~6 PEEK Grip sections have been developed 4. Full Arc Pipe 5. Hourglass Arc 6. Shift
No. 1~3 PEEK Grip sections have been developed No. 1~3 PEEK/ULTEM Grip sections have been developed 1. Full Arc2. One-Piece Thick Arc3. super grip fine
13 types of grip sections development for PEEK/ULTEM pens I just started the development of 13 types of grip sections, for PEEK/ULTEM fountain pens. i started off with "One-Piece Thick Arc" this will take quite a while, because these designs are all thicker than Urushi grip (13 types). so i am starting everything over again. in the end, it will be worthwhile though...
How to install Pilot Cartridge for your Eureka (ebonite feeder only) *** We only officially accept Eureka ultem ink cartridge as main ink storage device for our pens. We no longer officially recognize Con-70 / Con-40 as converter for Eureka fountain pen models.Although they are still compatible, you must read con-70 related manuals / tips before using them. It is tricky to get it right, although if you are skilled / experienced with the system, it should be fine...
O-ring related research for eureka pens there's has been a feedback regarding ultem grip section when charging ink, some bleeding happens. so far, periodic cleaning is the only way deal with this, or just ignore it. i could install oring @ inside wall of the grip section, like some brands. however, this would sacrifice wall thickness by 30~50%. so this means i would have to give up the good long term durability. recently i discovered ..
All 13 types of urushi grip section development Completed ! All 13 types of urushi grip section development are completed.As of now, I will end the urushi grip development. grip section for Urushi is designed in such way,urushi process is easier & urushi durability is better,compared to a regular grip section design. also, urushi grip section is thinner than a regular one.because, urushi layers will make the part thicker.even thread size is carefully con..
"One-Piece Thick Arc" urushi grip section developed "One-Piece Thick Arc" urushi grip section has been developed. grip section for Urushi is designed in such way, urushi process is easier & urushi durability is better, compared to a regular grip section design. also, urushi grip section is thinner than a regular one. because, urushi layers will make the part thicker. even thread size is carefully considered for urushi process tolerance. I will be..
"super grip fine" urushi grip section developed "super grip fine" urushi grip section  has been developed. grip section for Urushi is designed in such way,urushi process is easier & urushi durability is better,compared to a regular grip section design. also, urushi grip section is thinner than a regular one.because, urushi layers will make the part thicker.even thread size is carefully considered for urushi process tolerance. I will be creati..
"super grip coarse" urushi grip section developed "super grip coarse" urushi grip section  has been developed. grip section for Urushi is designed in such way,urushi process is easier & urushi durability is better,compared to a regular grip section design. also, urushi grip section is thinner than a regular one.because, urushi layers will make the part thicker.even thread size is carefully considered for urushi process tolerance. I will be crea..