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# Printing a project: Add to print queue, Start print and AutoPrint

Projects in SimplyPrint lets you print a project as one thing: you choose what to make and how many, and SimplyPrint uses the print files that fit the printer. This guide covers adding a project to the print queue, starting it on a printer, and how AutoPrint and the queue treat it.

| Projects is included in the **Print Farm** and **Enterprise** plans. The print queue is part of the Pro plan and up.

This guide is part of the [Projects documentation](/en/article/projects-everything-for-one-thing-you-make-from-parts-to-print-files-eoo337/).

## Table of contents
- [Where to start printing from](#2-where-to-start-printing-from)
- [Adding to the print queue](#2-adding-to-the-print-queue)
- [Plates that aren't sliced yet](#2-plates-that-arent-sliced-yet)
- [One queue entry, any printer that fits](#2-one-queue-entry-any-printer-that-fits)
- [Starting a print straight away](#2-starting-a-print-straight-away)
- [AutoPrint and the queue](#2-autoprint-and-the-queue)
- [Printing again](#2-printing-again)
- [When the project changes after queueing](#2-when-the-project-changes-after-queueing)

## Where to start printing from
**Add to print queue** and **Start print** are offered in several places, and each queues something different:

| From | What it prints |
| ---- | -------------- |
| The project in **Files**, or the project's header | The whole project, or its default variant |
| A variant | That variant |
| A plate | That plate |
| A print file | That one print file |

When everything is [sliced](/en/article/plates-printer-setups-and-slicing-in-a-project-zftkhm/), the project header's main button is **Add to print queue** or **Start print**.

## Adding to the print queue
1. Click **Add to print queue**.
2. The add-to-queue form lists the project's [variants](/en/article/sizes-colors-and-variants-in-a-project-options-variants-sets-and-skus-1k299kb/) as rows. Choose how many of each variant to print.
3. Set the usual [queue options](/en/article/adding-items-to-the-print-queue-files-plates-custom-fields-and-the-api-5aht3p/), such as tags, allowed printers and deadline.
4. Confirm.

![The Add to print queue form for a project with 12 variants: tags, printers and a note, then the variant row Small · Terracotta (FW-PLT-S-TER) with a quantity of 0 and 1 plate, and Cancel and Add](https://storage.crisp.chat/users/helpdesk/website/-/f/f/2/2/ff22a914001c1000/05-projects-printing-and-queue_171r4mt.png)

## Plates that aren't sliced yet
The form shows each print file's state:

- **Sliced when added**: it isn't sliced yet and will be sliced when you add it.
- **Out of date**: the project changed since it was sliced.
- **Couldn't slice**: the last slice failed.
- **Slicing now**: it is being sliced.

When something still needs slicing, the button reads **Slice and add**. Pre-sliced plates are never resliced.

See: [Pre-sliced files in a project: sliced 3MF (.gcode.3mf) and G-code](/en/article/pre-sliced-files-in-a-project-sliced-3mf-gcode-3mf-and-g-code-2ulbhe/)

## One queue entry, any printer that fits
A project goes into the queue as **one queue entry**, not one entry per file. It isn't tied to one printer: a printer that can take some of the project's plates fits it, and the queue says how many, such as "4 of 6 plates", with what the others need. [1-Click Print](/en/article/1-click-print-batch-start-prints-across-your-printers-nwr2xn/) and AutoPrint can start a plate that printer takes.

What you asked for when you added it, the variants and how many of each, stays as it was. [Deleting the project](/en/article/downloading-exporting-and-deleting-a-project-1guiiy1/) afterwards doesn't delete queue work you keep.

## Starting a print straight away
**Start print** starts a project on a printer now, using only print files that are already sliced. When you pick a project in **Start print** on a printer, you see the print files that can print on it. When it is done, SimplyPrint says **Started on (printers)**, or **Nothing started** if no print file fit.

## AutoPrint and the queue
With [AutoPrint](/en/article/autoprint-put-your-printers-on-autopilot-1hssb9u/), a project's queue lines say what they are waiting for, for example "Ready on the Bambu Lab P1S: AutoPrint starts it on its next round".

If your account loses Projects, for example after a plan change, queue entries already made from a project still show, print and are taken by AutoPrint.

## Printing again
A plate that has printed can be printed again with **Put back**, which returns it to the queue.

## When the project changes after queueing
Copies not started yet print the plate's current print file. If a plate is sliced again after you queued it, the waiting copies use the newer slice, as long as it is for the same setup: the same printer model, nozzles and bed. A filament set on a print file also reaches its copies not started yet. Copies already printing are not touched.

## Related articles
### Projects
- [Projects: everything for one thing you make, from parts to print files](/en/article/projects-everything-for-one-thing-you-make-from-parts-to-print-files-eoo337/)
- [Plates, printer setups and slicing in a project](/en/article/plates-printer-setups-and-slicing-in-a-project-zftkhm/)
- [Sizes, colors and variants in a project: options, variants, sets and SKUs](/en/article/sizes-colors-and-variants-in-a-project-options-variants-sets-and-skus-1k299kb/)
- [Pre-sliced files in a project: sliced 3MF (.gcode.3mf) and G-code](/en/article/pre-sliced-files-in-a-project-sliced-3mf-gcode-3mf-and-g-code-2ulbhe/)
- [Downloading, exporting and deleting a project](/en/article/downloading-exporting-and-deleting-a-project-1guiiy1/)
- [Projects and the Shop: making a Shop product from a project or variant](/en/article/projects-and-the-shop-making-a-shop-product-from-a-project-or-variant-hkx3k8/)

### The print queue and AutoPrint
- [The print queue: manage, schedule and automate your prints](/en/article/the-print-queue-manage-schedule-and-automate-your-prints-1syc86o/)
- [Adding items to the print queue: files, plates, custom fields and the API](/en/article/adding-items-to-the-print-queue-files-plates-custom-fields-and-the-api-5aht3p/)
- [AutoPrint: put your printers on autopilot](/en/article/autoprint-put-your-printers-on-autopilot-1hssb9u/)
- [1-Click Print: batch start prints across your printers](/en/article/1-click-print-batch-start-prints-across-your-printers-nwr2xn/)
- [Why won't my printer print this queue item? Using the queue inspector](/en/article/why-wont-my-printer-print-this-queue-item-using-the-queue-inspector-1ue6woy/)