Your work looks fantastic - I wish you could share more photos with us. Very elegant solution for the pull knob. Did you fabricate the parts or are they off-the-shelf? It looks like the pull-pin has an inset on top to accommodate a wood insert, is that right? However you did it - very nice.

Ross

: Hi everyone,

: Thanks to Addison for posting the pictures of the pull knob. The assembly
: consists of 6 pieces: Pull pin
: Wood insert for pull pin
: Nut
: O-ring
: Hatch mount (consists of two pieces which are pressfitted to from a O-ring
: groove)

: The shaft diameter of the pull pin is 5 mm and the top section has a diameter
: of 12.5mm. The top section is only 1.5 mm thick, i.e. nearly a flush
: fitting. The hatch is in my case about 6.5mm thick . The hatch mount is a
: close fit for the 5 mm shaft and contains an O-ring for sealing. The mount
: was made of two components to allow for an O-ring groove. There is no tool
: small enough to cut the groove otherwise. The nut was also specially made
: to allow a larger contact area. Everything is made from 316 stainless
: steel to ensure optimum rust resistance.

: The first picture shows the knob in the retracted position, i.e. you don't
: see much. I placed the knob in the walnut ascent strip to minimize visual
: impact.

: The second picture shows the nut from the bottom side. Note that the square
: section next to it is the bonding area for one of the four hooks for the
: bungees.

: The third picture shows the pull knob from the top in the extended position.

: Let me know if you have further questions.

: Andreas