Jump to content

The Fountain Pen Network uses (functional) cookies. Read the Privacy Policy for more info.  To remove this message, please click here to accept the use of cookies






Photo

Wahl Eversharp Adjustable Nib Slider Repair Technique

wahl eversharp slider repair technique

  • Please log in to reply
18 replies to this topic

#1 Hardy08

Hardy08

    NOS (New Old Stock)

  • Member - Gold

  • PipPip
  • 19 posts

Posted 19 December 2016 - 16:58

I recently bought a second generation Doric oversize with gorgeous No 9 nib.

When I disassembled the pen for cleaning, I was disappointed to find that the slider was broken and that the little tabs which kept the slider in place was missing:

1.jpg

 

I decided to sen it to a nibmeister I know in Spain but he told me that it was impossible to repair, I then tried to send it to very famous nibmeisters in the USA but it was the same answer...

 

So I decided to repair it myself.

 

The first thing I did was to weld little pieces of 900 silver just on the little prongs that hold the nib in place, but the repair was not solid enough and broke.

 

Then I tried this technique which worked for me resulting in a working slider which does not breaks (after a month of use): here is the result:

32.jpg

 

Technique:

The first step was to "re-create" the little prongs that hold the nib in place. I decided to laminate a silver coin in 900/1000 silver to a thin sheet: here are the steps, I used the gas torch to soften the silver to roll it to a thin sheet:

3.jpg

4.jpg

I then cut the sheet with office scissors to a little rectangle and then to a thin stripe:

5.jpg

6.jpg

I then cut this strip again with office scissors in 4 and checked if they fitted into the original little tabs which were underside the nib which secures the slider in place (seen at the right in the pic):

7.jpg

 

The second step was to prepare those strips to be welded to the original slider. For that I decided to glue the tabs to a piece of fire brick. This piece of firebrick should be of the same width of the gap between the two slits of the nib:

11.jpg

To cut the brick I smashed it with a hammer first:

8.jpg

Then I used a rock file (tungsten carbide file) to shape it:

10.jpg

Here is the result:

11.jpg

Then I temporary glued the 4 little strips I made in the first step to the piece of shaped brick, the distance between the strips must be the same between the prongs of the slider:

12.jpg

13.jpg

To allow the strips to stay in place when using heat (when welding) I put some plaster around the base of the piece of fire brick using a cut "bottle cap":

14.jpg

15.jpg

16.jpg

When the plaster was dry I removed the plastic cap:

17.jpg

I the left this rest for 5 days to let the plaster completely dry.

 

The Third step was to prepare the slider to be welded to the little strips: I filed it down with a narrow file to create a shallow depression of the thickness of the strips:

18.jpg

19.jpg

I then checked if those "depressions" fitted the gap between the 4 stripes I glued to the piece of firebrick:

20.jpg

 

The Fourth step was to hold my breath and prepare myself to welding with a little gaz torch arghhh !!:

I put some solder flux on the place where the slider touches the strips (not too much and not underside the slider):

22.jpg

I then put on the droplets of solder flux some extra thin tabs of brazing material:

23.jpg

I used the little gaz torch to weld everything... and here is the result!:

24.jpg

I cleaned the oxidyzation with steel wool.

 

The Fith step was to recreate the missing little tab that secured the slider under the nib: I used the same laminated sliver sheet I already used for the strips that I cut with office scissors. To create the holes in this little piece of metal it was impossible to drill because the drill bit were too thick. I used a chisel narrowed to the width of the strips to create the holes:

26.jpg

27.jpg

28.jpg

30.jpg

I then filed down the piece of metal to the size of the original tab and created nicer holes with a thin jeweler saw:

31.jpg  

 

The final step was to get everything together:

I cut the excess of length of the strips and adjusted them to fit into the slits of the nib, and I folded the freshly made prongs underside the freshly made tabs and here we go!!!

Be careful you can fold the metal only once or twice, when you try to do more it breaks!!!

32.jpg

 

Thank you, hope this will help doric lovers!

 

Jeremy Hardy.

 

 

 

 

 

 

 

 

 

 

 

Attached Images

  • 21.jpg


Sponsored Content

#2 farmdogfan

farmdogfan

    Collectors Item

  • Member - Gold

  • PipPipPipPipPipPipPipPip
  • 1,329 posts
  • Flag:

Posted 19 December 2016 - 17:04

Very impressive job.



#3 Hardy08

Hardy08

    NOS (New Old Stock)

  • Member - Gold

  • PipPip
  • 19 posts

Posted 19 December 2016 - 19:09

Thank you Farmdogfan, the repair took some time but I think it will hold for long.



#4 joss

joss

    Vintage

  • Member - Gold

  • PipPipPipPipPipPipPip
  • 682 posts
  • Location:Belgium, Europe
  • Flag:

Posted 20 December 2016 - 11:24

Impressive repair indeed! Many thanks for the pictures also, great to see the different steps in the repair process.

 

Which brazing material do you use to weld silver to gold (I guess that the slider is solid gold)? Is it different from what is used in electronic engineering? 



#5 Hardy08

Hardy08

    NOS (New Old Stock)

  • Member - Gold

  • PipPip
  • 19 posts

Posted 20 December 2016 - 13:42

Thank you joss !
The brazing material is silver 40 % it melts at around 600 degrees and is much stronger than what is used in electronics.

#6 drop_m

drop_m

    Rare

  • Member - Gold

  • PipPipPipPipPip
  • 125 posts
  • Flag:

Posted 21 December 2016 - 13:10

woah, impressive work. Thank you for the in-deep explanation of the process!
Very interesting.


#7 Hardy08

Hardy08

    NOS (New Old Stock)

  • Member - Gold

  • PipPip
  • 19 posts

Posted 21 December 2016 - 13:35

Thank you drop_m !
Next step is to completely re-create a slider in silver... I'm waiting for a broken doric from ebay...

#8 Wandering Man

Wandering Man

    Vintage

  • Member - Gold

  • PipPipPipPipPipPipPip
  • 404 posts
  • Location:Victoria, Texas
  • Flag:

Posted 21 December 2016 - 13:48

Wow! That is impressive!

Never argue with drunks or crazy people.
 
Check out my blog:

Life Lessons from Dogs, Bees, and Others

 

Sex Offenders: Myths and Stories


#9 Aristosseur

Aristosseur

    Mint

  • Member - Gold

  • PipPipPipPip
  • 52 posts
  • Flag:

Posted 21 December 2016 - 14:47

Another breakthrough is made, this thread will be referenced for the days to come, congratulations!



#10 joss

joss

    Vintage

  • Member - Gold

  • PipPipPipPipPipPipPip
  • 682 posts
  • Location:Belgium, Europe
  • Flag:

Posted 21 December 2016 - 14:53

Thank you drop_m !
Next step is to completely re-create a slider in silver... I'm waiting for a broken doric from ebay...

 

just another question out of interest: is it an option to use gold instead of silver tabs for the repair? I guess you would need gold brazing material too, if that exists (and if that is financially affordable).


Edited by joss, 21 December 2016 - 14:53.


#11 Hardy08

Hardy08

    NOS (New Old Stock)

  • Member - Gold

  • PipPip
  • 19 posts

Posted 21 December 2016 - 22:19

Thank you wandering Man and Aristosseur !
Hope this will help doric lovers to save their nibs !
@ Joss I don't know much about goldsmith... I usually work with silver (less expensive and better mechanical qualities in my opinion...)
A solid silver slider would mimics the white gold sliders in some Dorics.
Nevertheless a repair using gold should be possible but I have no experience yet....

#12 Wahlnut

Wahlnut

    Collectors Item

  • FPN Super Moderators

  • PipPipPipPipPipPipPipPip
  • 1,319 posts
  • Location:Scottsdale, AZ
  • Flag:

Posted 08 January 2017 - 21:26

Very impressive and neat solution and thanks for the great step by step photos.  

Syd


Syd "the Wahlnut" Saperstein
Pensbury Manor
Vintage Wahl Eversharp Writing Instruments
Pensbury Manor

The WAHL-EVERSHARP Company
www.wahleversharp.com
New WAHL-EVERSHARP fountain and Roller-Ball pens

#13 fountainbel

fountainbel

    fountainbel

  • Premium - Emerald

  • PipPipPipPipPipPipPipPipPipPip
  • 3,436 posts
  • Flag:

Posted 13 January 2017 - 21:45

You surely are a clever and gifted repairer, my sincere congratulations for a perfect repair !

Francis



#14 Hardy08

Hardy08

    NOS (New Old Stock)

  • Member - Gold

  • PipPip
  • 19 posts

Posted 16 January 2017 - 07:10

Thank you Syd and fountainbel !

#15 billy1380

billy1380

    Mint

  • Member - Gold

  • PipPipPipPip
  • 80 posts
  • Location:Nottingham, UK

Posted 16 January 2017 - 19:30

Looks amazing... Well done! and thanks for sharing.



#16 sidthecat

sidthecat

    Antique

  • Member - Gold

  • PipPipPipPipPipPipPipPipPip
  • 1,906 posts
  • Location:Los Angeles
  • Flag:

Posted 17 January 2017 - 00:43

You've gone above and beyond the call of expediency.

#17 Mojibacha

Mojibacha

    Dipped Only

  • Member - Silver

  • Pip
  • 8 posts
  • Flag:

Posted 02 April 2017 - 00:31

This must have taken huge dedication. Props to you friend.



#18 jmnav

jmnav

    Mint

  • Member - Gold

  • PipPipPipPip
  • 54 posts
  • Flag:

Posted 13 May 2017 - 07:21

Just wonderful.  A very nice perseverance and acumen exercise!



#19 GAtkins

GAtkins

    Collectors Item

  • Premium - Emerald

  • PipPipPipPipPipPipPipPip
  • 849 posts
  • Location:Springdale, Arkansas
  • Flag:

Posted 10 July 2017 - 02:21

Truly awesome.

 

Glenn







Also tagged with one or more of these keywords: wahl, eversharp, slider, repair, technique



Sponsored Content




|