Academy / Introduction to 3D Printing / Sending Your First Print

Sending Your First Print

10 min read

This is the moment. Your model is sliced, your preview looks good, and your printer is waiting. Let's send that file over and make something real.

Before You Print: Quick Checklist

Before hitting the print button, take 30 seconds to verify these things:

On your printer:
- Is the printer powered on and connected to your network?
- Is filament loaded? (Check that the spool is on the holder and fed into the extruder)
- Is the build plate clean? (Wipe it with a dry cloth or isopropyl alcohol if it looks greasy or dusty)
- Is the build plate properly seated on the heated bed?

In Bambu Studio:
- Does the preview look correct? (No obvious errors, the shape matches what you expect)
- Is the correct printer selected?
- Is the correct filament selected?
- Does the estimated print time seem reasonable?

If everything checks out, you're ready to go.

This is the easiest and most common way to print with a Bambu Lab printer:

  1. In the Bambu Studio preview, click "Print plate" in the upper right corner
  2. A pop-up window appears showing:
  3. A preview of your model
  4. A dropdown to select which printer to send to (if you have more than one)
  5. Options for pre-print checks
  6. Make sure your printer is selected in the dropdown
  7. Leave the pre-print options at their defaults for now (we'll explain them below)
  8. Click "Send"

Bambu Studio will upload the file to your printer, and the print will start automatically. You'll see the progress in the Device tab of Bambu Studio, and you can also monitor it on the Bambu Handy app.

Note: Your computer and printer must be on the same local network for this to work. If they're not, you'll need to use the SD card method below.

Method 2: Print via Micro SD Card

If your printer isn't connected to the network, or if you prefer to transfer files physically:

  1. Insert a micro SD card into your computer (you may need an adapter)
  2. In Bambu Studio, click the small arrow next to "Print plate" in the upper right corner
  3. Select "Export plate sliced file"
  4. Choose the SD card as the save location and click Save
  5. Eject the SD card safely from your computer
  6. Insert the SD card into the slot on the right side of your printer's display screen
  7. On the printer's touchscreen, tap the Home icon, then "Print Files"
  8. Select "SD Card" from the top menu
  9. Tap your file to start printing

Both methods get you to the same result - the SD card method just skips the network step.

What is the easiest way to send a print job to your Bambu Lab printer?
Over the network directly from Bambu Studio
By exporting to a USB drive and plugging it in
By emailing the file to the printer
By using Bluetooth from your phone

What Happens When the Print Starts

Once you hit send, your printer comes to life. Here's what happens, in order:

1. Heating up - The printer heats the nozzle and the build plate to the right temperatures for your filament. For PLA, the nozzle heats to around 200-220 degrees C and the bed to around 55-60 degrees C. This takes 1-3 minutes.

2. Auto bed leveling - Bambu Lab printers can automatically check that the build plate is perfectly level. This is done using a sensor that probes multiple points on the plate. A level bed is critical for good first-layer adhesion.

3. Flow calibration (optional) - Some Bambu Lab printers can calibrate the exact amount of filament being extruded to ensure consistency. This helps prevent over or under-extrusion.

4. Purge line - The printer draws a thin line along the edge of the build plate to prime the nozzle and make sure filament is flowing consistently before it starts on your model.

5. Printing begins - The printer starts building your model, layer by layer, from the bottom up. The first layer is printed slowly and carefully because it's the foundation for everything above it.

Watching Your First Layer

The first layer is the most important layer of the entire print. If the first layer goes down well, the rest of the print will almost certainly succeed. If the first layer fails, everything above it will too.

Here's what a good first layer looks like:
- The filament lines are squished slightly flat against the build plate (not round like spaghetti)
- The lines are connected to each other without gaps
- The filament sticks firmly to the plate and doesn't peel up at the corners
- The layer looks even and consistent across the entire surface

If you see the filament not sticking, curling up, or looking stringy and disconnected, something might be wrong. The most common causes are:
- The build plate is dirty (clean it with isopropyl alcohol)
- The nozzle is too far from the plate (the auto-leveling usually handles this, but you can adjust the Z-offset in the printer settings)
- The bed temperature is too low

For your first print, the defaults should work well. But keep an eye on that first layer - once it's down solid, you can relax and let the printer do its thing.

Monitoring Your Print

While the printer works, you can monitor its progress in several ways:

In Bambu Studio: Click the Device tab to see a real-time view of your printer's status - current layer, estimated time remaining, temperatures, and more. If your printer has a camera (standard on the X1C and some other models), you can watch a live video feed of the print.

On the Bambu Handy app: The same monitoring features are available on your phone, so you can check on your print from anywhere.

On the printer's screen: The touchscreen shows the current progress, including a percentage and estimated time remaining.

You don't need to babysit the printer for the entire print. Once the first few layers look good, it's safe to walk away and check back periodically.

Your Print is Done!

When the print finishes:

  1. Wait for the build plate to cool down. This is important - the print is easier to remove when the plate is cool, and you avoid burning yourself. Wait until the bed temperature drops below 30-35 degrees C. Most Bambu Lab printers will display "Print Complete" and begin cooling automatically.

  2. Remove the build plate. Lift the flexible build plate off the heated bed using the tabs.

  3. Flex the plate to pop off your print. This is one of the best features of Bambu Lab's textured PEI plates - gently flex the plate and the print pops right off. No scraping, no tools, no struggle.

  4. Inspect your print. Hold it up, look at it from different angles. How do the surfaces look? Are the layers clean? Does the shape match what you expected from the preview?

  5. Put the build plate back. Set it back on the heated bed so it's ready for the next print.

Congratulations - you just 3D printed an actual physical object. Take a moment to appreciate that. A few minutes ago, this was a file on your computer. Now it's something you can hold in your hands.

What should you do when your print finishes?
Immediately pull the print off the hot plate
Turn off the printer and leave it overnight
Wait for the plate to cool, then flex it to pop off the print
Use a scraper to force the print off the plate right away
Have you finished this lesson?