# Assembly Instructions

Step-by-step guide for assembling the PQN polarimeter optomechanics.

## 1. Attach magnet to base

```{image} ../_static/hardware/Magnet+Base.gif
:alt: Attaching adhesive magnet to base
:width: 250px
:align: center
```

Apply an adhesive magnet to the bottom of the base.

---

## 2. Insert post into base

```{image} ../_static/hardware/Post+Base.gif
:alt: Merging post with base
:width: 250px
:align: center
```

Apply gentle force to press the post into the base until it friction-fits securely.

---

## 3. Load polarizer or retardation film into mount

```{image} ../_static/hardware/film-mount.gif
:alt: Loading film into mount
:width: 250px
:align: center
```

Cut the film to a 1-inch diameter. Slide it into the slot on the mount — the crack is sized to accept the film snugly.

> **Note:** Characterize the optics to the desired polarization basis before mounting.

---

## 4. Load Fresnel lens into mount

```{image} ../_static/hardware/lens-mount.gif
:alt: Loading lens into mount
:width: 250px
:align: center
```

Open the mount slot and gently slide the lens in. The clamping filament holds the lens in place once seated.

---

## 5. Attach mirror to mount

```{image} ../_static/hardware/Mirror.gif
:alt: Attaching mirror to mount
:width: 250px
:align: center
```

Press the adhesive side of the mirror against one face of the mount, then peel off the protective cover.

---

## 6. Insert laser into mount

```{image} ../_static/hardware/laser.gif
:alt: Inserting laser into mount
:width: 250px
:align: center
```

Push the laser (11 mm diameter) into the mount hole.

> **Tip:** Apply a small amount of superglue for extra stability.

---

## 7. Attach beam splitter to mount

```{image} ../_static/hardware/BS.gif
:alt: Inserting beam splitter into mount
:width: 250px
:align: center
```

Slide the 1 mm beam splitter into the dedicated mount slot.

---

## 8. Attach any mount to a post

```{image} ../_static/hardware/mount-to-post.gif
:alt: Attaching mount to post
:width: 250px
:align: center
```

Press the mount's hole onto a post with enough force until it seats firmly. This works with all mount types.