# Purchase Items in the Store
**(on this page)**
How to: Buy a part or supply
How to: Buy 3D Printer OS Balance
#### **How to: Buy a part or supply**
From anywhere on the ITLL Website, click/tap on **Store** in the menu navigation bar (or mobile menu).
1. Find the item that you want to buy, and click/tap on its card (for example, Acrylic Sheet).
- Every item in the store has a **Cancel** button to go back to the main Store page if you happen to mis-click on the wrong item
2. Provide values for all input fields as appropriate (set desired quantity in the case of Acrylic Sheet), then click/tap on the **To Checkout** button.
3. On the next screen, your Name and Email will be prefilled, along with the Purchase Info. Verify that all information is correct.
4. If you have credit on your individual balance, using the toggle switch you can either opt to have it applied to the purchase, or pay the total amount with a credit or debit card.
- If your balance completely covers the purchase, you will see a **Confirm Purchase** button instead of a credit/debit card payment form.
5. Enter your credit or debit card info into the payment form (if applicable), then click the **Pay Now** button.
6. You will be redirected to a screen containing a confirmation receipt, which you can save for your records.
7. Click the **Home** button on the screen to return to the ITLL Website.
8. If you purchased an item that requires a pickup, please stand by and wait to receive a notification email when the item is ready for pickup. The notification email will provide information on the location to pick the item up from.
[](https://itll-wiki.colorado.edu/bookstack/uploads/images/gallery/2026-08/pHi6jYlR7YlI5AOP-store-buy-acrylic-10a.gif)
#### **How to: Buy 3D Printer OS Balance**
[3D Printer OS](https://www.3dprinteros.com/) is the name of an application that allows you to send print requests to 3D printers in the ITLL (such as the Prusa XL) through the [cloud](https://azure.microsoft.com/en-us/resources/cloud-computing-dictionary/what-is-the-cloud), and has a respective item in the Store called 3D Printer OS Balance. You can set your own individual balance for these print requests by purchasing this item whenever you need new or additional funds.
1. Find **3D Printer OS Balance** in the Store, and click/tap on its card.
- If you accidentally clicked on another item, you can go back to the main Store page by clicking/tapping on the **Cancel** button by the **To Checkout** button.
2. Provide a desired amount in the **Price** input field, and text for the **Description** input field (Description text will primarily be for your own reference, so it may be helpful to add a self-memo). Then click/tap on the **To Checkout** button.
3. On the next screen, your Name and Email will be prefilled, along with the Purchase Info. Verify that all information is correct.
4. If you have credit on your individual balance, using the toggle switch you can either opt to have it applied to the purchase, or pay the total amount with a credit or debit card. If your balance completely covers the purchase, you will see a **Confirm Purchase** button instead of a credit/debit card payment form.
5. Enter your credit or debit card info into the payment form (if applicable), then click the **Pay Now** button.
6. You will be redirected to a screen containing a confirmation receipt, which you can save for your records.
7. Click the **Home** button on the screen to return to the ITLL Website.
8. Your balance in the 3D Printer OS software will be updated after the purchase.
[](https://itll-wiki.colorado.edu/bookstack/uploads/images/gallery/2026-08/1GFzgV1X20uvQDjP-store-buy-3dpos-10b.gif)