3D Printed Case
===============

A 3D-printed enclosure keeps the overall build cheap and tidy. This page covers
the **PE-Edition** case; for the magnet-held variants see :doc:`variants`, and for
direct download links to every model file see :doc:`files`.

.. toctree::
   :maxdepth: 1
   :hidden:

   variants
   files

.. figure:: images/3d_printed_case.jpeg
   :width: 100%
   :alt: Finished 3D printed case

   The finished PE-Edition case.

All models can be printed **without supports**. This first version is designed to
use heat-set inserts to mount the coin acceptor and a Raspberry-Pi Zero:

- Coin acceptor: **M3** inserts (`Amazon <https://amzn.to/35eNkgj>`__)
- Raspberry-Pi: **M2.5** inserts (`Amazon <https://amzn.to/2HjF0Uo>`__)

The lids hold by friction fit.

Parts to print
--------------

The case needs three core parts plus an optional rim:

- **Shell** — the main body.
- **Back Lid** — two versions: *normal* (2 mm plate) or *thicker* (3 mm plate).
- **Top Lid** — two versions:

  - *with Lightning logo* — for a dual-colour print, add a **colour change at
    Z 3.00 mm**.
  - *without any logo*.

- **Mounting Rim** — optional but *recommended* to cleanly glue the Top Lid onto
  the Back Lid.

See :doc:`files` for the download links.

.. figure:: images/top_lid_with_logo.jpeg
   :width: 60%
   :alt: Top lid with Lightning logo

   The Top Lid with the Lightning logo (dual-colour print).

Assembly
--------

1. Print the **Shell**, **Back Lid**, **Top Lid** and (optionally) the
   **Mounting Rim**.
2. Use a soldering iron to set the heat-set inserts:

   a. **M3** inserts into the coin-acceptor holes.
   b. **M2.5** inserts into the Raspberry-Pi holes.

   .. figure:: images/shell_inserts.jpeg
      :width: 80%
      :alt: Installing heat-set inserts with a soldering iron

   .. figure:: images/shell_inserted.jpeg
      :width: 80%
      :alt: Shell with inserts installed

3. If you printed the **Mounting Rim**, place it around the Back Lid.

   .. figure:: images/lids_and_rim.jpeg
      :width: 80%
      :alt: Lids and mounting rim

   .. figure:: images/rim_and_backlid.jpeg
      :width: 80%
      :alt: Rim positioned on the back lid

4. Apply glue to the Top Lid and press the two halves together.

   .. figure:: images/mounting_rim.jpeg
      :width: 80%
      :alt: Gluing the top lid

5. Without the rim, the finished result should look like this:

   .. figure:: images/glued_lid.jpeg
      :width: 80%
      :alt: Finished glued lid