Print Queue

The print queue lets you schedule prints in advance and send them automatically to available printers when they become idle.

Go to: https://localhost:3443/#queue

Creating a queue

1. Go to Print Queue in the navigation menu
2. Click New job (+ icon)
3. Fill in:
   • Filename — upload .3mf or .gcode
   • Target printer — select a specific printer or Automatic
   • Priority — Low / Normal / High / Critical
   • Scheduled start — now or a specific date/time
4. Click Add to queue

Drag and drop

You can drag files directly from the file explorer onto the queue page to add them quickly.

Adding files

Upload file

1. Click Upload or drag a file to the upload field
2. Supported formats: .3mf, .gcode, .bgcode
3. The file is saved in the file library and linked to the queue job

• 3D preview — click the 3D button to view the model before printing

From the file library

1. Go to File Library and find the file
2. Click Add to queue on the file
3. The job is created with default settings — edit if needed

From history

1. Open a previous print in History
2. Click Print again
3. The job is added with the same settings as last time

Priority

The queue is processed in priority order:

Priority	Color	Description
Critical	Red	Sent to the first available printer regardless of other jobs
High	Orange	Ahead of normal and low jobs
Normal	Blue	Default order (FIFO)
Low	Gray	Only sent when no higher jobs are waiting

Drag and drop jobs in the queue to change the order manually within the same priority level.

Automatic dispatch

When Automatic dispatch is enabled, 3DPrintForge monitors all printers and sends the next job automatically:

1. Go to Settings → Queue
2. Enable Automatic dispatch
3. Choose Dispatch strategy:
   • First available — sends to the first printer that becomes idle
   • Least used — prioritizes the printer with the fewest prints today
   • Round-robin — rotates evenly between all printers

Confirmation

Enable Require confirmation in settings if you want to manually approve each dispatch before the file is sent.

Staggered start

Staggered start is useful for preventing all printers from starting and finishing at the same time:

1. In the New job dialog, expand Advanced settings
2. Enable Staggered start
3. Set Delay between printers (e.g. 30 minutes)
4. The system distributes start times automatically

Example: 4 identical jobs with a 30-minute delay start at 08:00, 08:30, 09:00, and 09:30.

Queue status and tracking

The queue overview shows all jobs with status:

Status	Description
Waiting	Job is in queue and waiting for a printer
Scheduled	Has a scheduled start time in the future
Sending	Being transferred to printer
Printing	In progress on the selected printer
Completed	Done — linked to history
Failed	Error during sending or printing
Cancelled	Manually cancelled

Notifications

Enable notifications for queue events under Settings → Notifications → Queue to get notified when a job starts, completes, or fails. See Notifications.