Replicating a tattered focussing hood of a RB Graflex B 4x5

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    Replicating a tattered focussing hood for a R.B. Graflex B 4x5 camera.

    As can be seen, the original hood was cracked beyond repair. The above image shows the surviving leather stiffening boards put back into the location where they belong. The pattern of the folds and stiffeners is plain to see. Note that for visual effect the brown inside of the boards is shown (the back has a thin canvas covering that held them in place); this means that the boards on the sides (the complex pattern of six parallelogram and triangle shapes) has been swapped over.

    © Dirk HR Spennemann 2010, All Rights Reserved

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    1. heritagefutures 65 months ago | reply

      The focussing hood of the RB Graflex B was totally torn at almost every single fold. Initial hopes of stabilising the original hood were quickly dashed.
      Graflex B 4x5 Chimney Repair 1 Before
      Graflex B 4x5 Chimney Repair 2 Before

      The hood partially unfolded:
      Graflex B 4x5 Chimney Repair 3 Before

      The outer part of the bottom frame removed
      Graflex B 4x5 Chimney Repair 4 Bottom frame removed

      Bottom frame completely removed
      Graflex B 4x5 Chimney Repair 5 Bottom frame removed

      Metal bar to hitch the hood to the lid
      Graflex B 4x5 Chimney Repair 6 metal bar

      Detail of stitching of the rim of the face piece
      Graflex B 4x5 chimney Repair 9 stitching detail
      Graflex B 4x5 chimney Repair 10 stitching detail

      Hood leather tally unfolded
      Graflex B 4x5 chimney Repair 7 chimney unfolded

      Hood leather unfolded with surviving stiffening boards put back in place:
      Replicating a tattered focussing hood of a RB Graflex B 4x5

      Measuring and tracing the pattern
      Graflex B 4x5 Chimney Repair 11 - creating the pattern
      Graflex B 4x5 Chimney Repair 12 - creating the pattern

    2. heritagefutures 65 months ago | reply

      The completed pattern:
      Pattern for a RB Graflex B Focussing Hood

      the same with measurements:
      RB Graflex B Hood Pattern w Measurements

      and print-ready templates for the stiffeners:
      RB Graflex B Hood Pattern - Template 1 RB Graflex B Hood Pattern - Template 2 RB Graflex B Hood Pattern - Template 3

    3. fulvue 65 months ago | reply

      Nice project, Dirk.

    4. heritagefutures 65 months ago | reply

      PART 2: BUILDING A NEW HOOD

      The materials:
      The Raw Materials

      Caliper measurements of thickness of materials:
      Stifferners:
      original: leather 0.6mm
      replacement: cardboard 1mm
      Cover
      original: leather 0.4mm
      replacement: roofing vinyl 0.51mm

      Cutting out the cardboard stiffeners:
      Cutting out the Stiffereners 1

      For the rounded sections, look for crockery with the same diameter:
      Cutting out the Stiffereners 2 Rounded Sections
      Cutting out the Stiffereners 3 Rounded Sections

      comparison of the original pieces with the replacements
      Cutting out the Stiffereners 4 Comparisons
      I am reluctant to use the original pieces because a) something can go wrong with my replica hood, thus wasting the originals, and b) as the hood was so decayed that proper restoration was not possible, the normal conservation ethics of minimal intervention and respect for the historic fabric do not apply. This is totally new hood, but I am saving all pieces of the original hood.

      Checking the size of the pieces against the template:
      Cutting out the Stiffereners 5 Size Check

      Tracing the pattern onto the fabric using old-fashioned carbon paper
      Tracing the Pattern 1
      Tracing the Pattern 2

      The completed trace:
      Tracing the Pattern 3

    5. heritagefutures 65 months ago | reply

      Part 3 : ASSEMBLY

      Pre-piecing holes into the rear stiffener (for the metal bar that fastens the hood to the lid of the camera):
      Piercing Holes
      While this may not be necessary, I felt it would make matters easier when completed.

      Positioning the stiffeners on the fabric:
      Gluing down the stifferners 1 Positioning

      Glueing down the stiffeners:

      Gluing down the stifferners 2 Glue

      Gluing down the stifferners 3 Glue

      LET IT DRY PROPERLY

      The inner lining of the hood is a very thin black fabric that is translucent when held against the light:
      Translucent backing fabric

    6. Contrabass 64 months ago | reply

      This is fantastic. Fortunately, my 3x4 RB Super D's focussing hood is in excellent condition; otherwise I'd be following your lead. Great project!

    7. heritagefutures 64 months ago | reply

      Thanks for that.
      Will be adding the remaining steps soon...

    8. RaúlM. 64 months ago | reply

      Very nice work Dirk.
      That reminds me of something, what about the curtains for the Gallus?

    9. heritagefutures 64 months ago | reply

      The Gallus is next!
      ;-)

    10. RaúlM. 64 months ago | reply

      I'll be waiting for another of your amazing tutorials.

    11. mhcfires 64 months ago | reply

      Great Job! Thanks for sharing!

    12. RA Friedman [deleted] 63 months ago | reply

      This is fantastic. Is there a photo of the final hood. DId you tool the Graflex name on it?

    13. heritagefutures 63 months ago | reply

      No, not yet... the card may have been a tad too thick..was flat out , will get it finished this weekend.. and no, did not tool the name and don't plan on doing it either....
      d

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