Over time the AGC Block II DSKY had multiple versions. There's also different variants installed in the CSM and LEM.
For now, I am focusing on modeling the versions used in the Apollo 17 CSM DSKY (see https://www.ibiblio.org/apollo/2014999-181.html)
I'm collecting notes and questions regarding each drawing set that I used to create this model.
Dowel pins are generally not included in these models.
Holes for screw thread inserts are modeled as the actual screw hole.
Eight of these screws secure the Front Cover on the DSKY ASSEMBLY (in 2003994J). The latest specification drawing for these screws we currently have is 1001489 "C" - the highest screw suffix on that drawing
is "-57", not "-59". I did a bit of reverse engineering to reconstruct the "-59" part: #6 threads are used and the length I chose is 1.500 inches.
At some point I will try to locate a replacement off-the-shelf part from Grainger or Digikey.
The inner constructon of this assembly is not fully documented in the AGC drawings. I'm generating an "exact" version based on the drawing, and a "reconstructed" version that would be based on building a simulated version from modern parts.
Portions of the connector at the back of the part remain to be modeled.
On the back, there's a channel marked "0.615 MIN" (B3) - a more "to scale" value of 0.515 MIN has been used in the model.
There are apparently two variants of this part, but the drawing does not call these out. The drawing depicts a part with a "short window" -- intended for the Status and Warning light assembly, however a 2004699-001 version is also called out for the E/L & Cover Assembly (2003988B). The Status cover assembly(2003897C) calls for either part 2004699-000 or 2004699-001, depending on the variant of the assembly. Based on the two assembly drawing referencing 2004699, I'm inferring that the -000 variant has the "short window" and -001 is the "tall window". It's not difficult to reconstruct the part geometry for the tall window, but I'm wondering why it is missing in the source part drawing.
This is the E/L display indicator for the DSKY. The drawing indicated 2004647 is just a relabeled Block I part, 1006315-001. 1006315G includes dimensions of the E/L display elements and the outline of the assembly, but lacks details on the internals. The Gorton fonts used in this model originates from Eugene
[COMPLETE] Screw thread inserts are modeled as a hole for the intended screw. Dowel pins are not modeled. The drawing is slightly out of scale at the middle of the bottom face.
[COMPLETE] The arrays of holes for the pin insulators aren't explictly marked as laterally centered on the header, but that seems like a reasonable assumption. I have modeled it that way.
[COMPLETE] Both variants are modeled. The modeling of the threading at the tip of the screw isn't quite accurate.
[COMPLETE] This is easily the most complex component to model.