Ultra Thin Lines..?

Discussion in 'Clock Case Restoration and Repair' started by gleber, Nov 17, 2019.

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  1. gleber

    gleber Registered User

    Jun 15, 2015
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    I'm looking for advice for what implement to use to create the finest (thinnest) black line possible (or any color). I'm looking for something that I can used to draw lines thinner than a hair.

    Thanks,
    Tom
     
  2. John Arrowood

    John Arrowood Registered User
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    Have you looked at pens for drafting (draughting) as used in mechanical drawing classes way, way back, before computers?
     
  3. gleber

    gleber Registered User

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    Thanks, I have a set from way back (somewhere). I'll have to do some digging. I was hoping for a better modern answer. I also meant to post this in the Reverse glass and dial painting section.

    Tom
     
  4. PatH

    PatH National Program Chair
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    With the current interest in drawing, the major craft stores carry some pens that are quite fine. The issue with some of the pens that might be used is the ink with which they are loaded. Although Rapidograph pens are pricey and require loading the ink and cleaning after use, they do offer a variety of sizes and can be filled with various permanent ink colors if needed. There are likely other drafting pens that will also serve the purpose. Even better if you already have a set. Looking forward to seeing what you find.
     
  5. gleber

    gleber Registered User

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    Thanks. The best I've found in the general class of pens is 0.5mm. Google says a hair is 0.02 - 0.05mm. I guess I'll have to look a little deeper for specialty pens. I just found these fine line pens on Google, which have a smallest size of 0.05mm. Time to do a little more shopping.

    Tom
     
  6. PatH

    PatH National Program Chair
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    Just curious...what horological application requires a tip that fine? Repairs to a transferred lithograph is the only thing that I can think of - at least for a clock. Thx!
    Pat
     
  7. gleber

    gleber Registered User

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    At least a few applications...

    Touching up fine lines like chapter rings on dials.

    Drawing fine lines on reverse painted glass. Definitely an experiment for me, but I'd like to try my hand at reverse painting.

    Immediate need: I have a clock with veneer on a curved surface. There are a few small sections on the edge chipped away that would be difficult to replace. I plan to fill the missing sections with wood filler, stain it to match and then in this case the grain has fine black lines that I will try to recreate. The lines are part of an open grain, so I plan to scribe them first with a sharp knife, then color. I may be able to do it like incising where you cover the area, then clean off the surrounding surface. I'm about to depart for two weeks - work and Thanksgiving with the new grandson - so I can't post any photos now, but I plan to when I return.

    For me it's all about learning new techniques - very satisfying when it turns out well. I'm not allowed to use that language when it doesn't...:rolleyes:

    Tom
     
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  8. shutterbug

    shutterbug Moderator
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    You could probably invent a single hair brush using a short stiff hair like from a hog or a skunk. It wouldn't be thinner than a hair, but as thin as one ;)
     
  9. D.th.munroe

    D.th.munroe Registered User

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    I remember reading years ago about someone who did paintings on the heads of pins with a single hair from a fly.
     
  10. Andrew G.

    Andrew G. Registered User
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    I use airbrush for fine lines. 0.05mm should be no problem.
     
  11. woodlawndon

    woodlawndon Registered User
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    This sounds interesting. Could you please post some pics of what you have and perhaps some examples of what it's capable of performing. Thanks.
    Don
     
  12. gleber

    gleber Registered User

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    Yes, so is that with a stencil? I'm curious about the technique too.

    Tom
     
  13. Andrew G.

    Andrew G. Registered User
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    #13 Andrew G., Nov 28, 2019
    Last edited: Nov 28, 2019
    Hi Tom, Don,

    I just airbrushed two lines on a vienna clock inner ring chapter, as an example. It could be done way better if I had time, but it is OK to show you an idea. I generally use either a stencil that cut from a cigarette paper (or a thin film) or use a special masking tape, like in my example. A stencil can be made by cutting overlapped two pieces of paper. Then you separate them apart. The gap between is your line.

    Andrew.

    IMG_20191128_001_HDR.jpg IMG_20191128_002.jpg IMG_20191128_003_HDR.jpg IMG_20191128_004.jpg View attachment 559128 IMG_20191128_005_HDR.jpg
     
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  14. woodlawndon

    woodlawndon Registered User
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    Thank you Andrew, impressive. I'm going to look into this gear a little further.
    Don
     

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