The Smell of Molten Projects in the Morning

Ed Nisley's Blog: Shop notes, electronics, firmware, machinery, 3D printing, laser cuttery, and curiosities. Contents: 100% human thinking, 0% AI slop.

The New Hotness

  • Smithsonian’s Apollo 11 Command Module

    An old friend asked for a copy of the Smithsonian’s Apollo 11 Command Module. I started with a tiny 1:80 version to check feasibility:

    Apollo 11 CM - 1-80 scale
    Apollo 11 CM – 1-80 scale

    It’s obviously not printable in one piece without a ton of support, so I chopped off the heatsink and printed the parts separately in the obvious orientation:

    Apollo 11 CM - 1-80 scale - split - Slic3r preview
    Apollo 11 CM – 1-80 scale – split – Slic3r preview

    And glued them back together:

    Apollo 11 CM - clamping
    Apollo 11 CM – clamping

    That worked well enough, even without locating pins, to give me confidence that it’d come out all right.

    There’s plenty of gimcrackery surrounding the upper airlock:

    Apollo 11 CM - 1-40 scale - top - Slic3r preview
    Apollo 11 CM – 1-40 scale – top – Slic3r preview

    Most of which simply vanished at 1:80 scale:

    Apollo 11 CM - 1-80 scale - top detail
    Apollo 11 CM – 1-80 scale – top detail

    I made another cut just below the top of the capsule and ran off a 1:40 scale version that came out somewhat better, but it was still ugly:

    Apollo 11 CM - 1-40 scale - mortar detail
    Apollo 11 CM – 1-40 scale – mortar detail

    Much to my astonishment, the grab rail over the side hatch, between the two parachute motars, came out well every time.

    The giant 1:20 scale version would require something over 24 hours of printing, so I went with 1:30 in three pieces:

    Apollo 11 CM - 1-30 scale - sections
    Apollo 11 CM – 1-30 scale – sections

    The top had pretty good detail:

    Apollo 11 CM - 1-30 scale - top section - 1
    Apollo 11 CM – 1-30 scale – top section – 1

    Another view:

    Apollo 11 CM - 1-30 scale - top section - 2
    Apollo 11 CM – 1-30 scale – top section – 2

    Gluing the parts together made it ready for cleanup / finishing / painting:

    Apollo 11 CM - 1-30 scale - assembled
    Apollo 11 CM – 1-30 scale – assembled

    Which he’s better at than I ever will be…

    Natural PETG probably isn’t the right plastic for that kind of model, but it’s what I had on hand.

    Enjoy!