# Dispenser Assembly

With your material and substrate added from the materials library, the next step is to assemble your dispenser. The dispenser has a few moving parts, so you may want to follow this guide the first few times you assemble.

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## Assembling Your Smart Dispenser

#### Step 1: Mount the pressure sensor

Open the dispenser door and insert the couple with the pressure window facing the pressure sensing pin in the dispenser body.

<figure><img src="/files/ZVD5VLmjSsZh8wZ2oW93" alt=""><figcaption><p>Mounting the pressure sensor</p></figcaption></figure>

#### Step 2: Attach a nozzle

To attach your nozzle to the end of the coupler, hold the couple in place with your thumb, and twist the nozzle **clockwise**. Tightening by hand is all you need.&#x20;

{% hint style="danger" %}
**It’s very important to not overtighten the nozzle!**
{% endhint %}

<figure><img src="/files/Nsm1YQ2FdTs6t0vsVdJo" alt=""><figcaption><p>Attaching a nozzle</p></figcaption></figure>

#### Step 3: Secure the pressure sensor and nozzle

Close the dispenser door and secure it with the thumbscrew, tightening it **clockwise**.

<figure><img src="/files/Vp7hnJah8hXdoBaUI64z" alt=""><figcaption><p>Securing the pressure sensor</p></figcaption></figure>

#### Step 4: Insert a material

Remove the caps from both ends of your material’s cartridge and slide the cartridge into the dispenser body so it seats fully onto the coupler.

<figure><img src="/files/z0ljFYRlvPdACxQCnftV" alt=""><figcaption><p>Inserting a material</p></figcaption></figure>

#### Step 5: Mount the motor plunger

Gently insert the motor plunger into the top of your material cartridge, aligning the notch on the motor body to the Voltera logo on the dispenser body. Once it bottoms out, twist the motor **90° clockwise** to lock it in place.

<figure><img src="/files/g4iQDTtg62P7CRICdEqD" alt=""><figcaption><p>Mounting the motor plunger</p></figcaption></figure>

You now have a fully assembled smart dispenser that is ready to be mounted to NOVA.

<figure><img src="/files/7rHvOfETtdiNo2ebdOr1" alt=""><figcaption><p>Fully assembled smart dispenser</p></figcaption></figure>

You're all set to move move to the next step [Printing](/docs/nova/getting-started/starter-project/legacy-first-print-project-terra-nova/printing.md).


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