Step-by-Step Guide

Bambu Lab P2S Pen Plotter Setup Guide

Everything you need to go from unboxing to your first plot. With a Stabilo Point 88 and Falu or Sebas pen holder, use the presets below and skip straight to plotting — calibration is optional.

~45 minutes total
No experience required
Z-Draw: 17, Z-Lift: 25

Before You Start

Printed Pen Holder

Print the Falu Series X & P or Sebas P2S pen holder STL on your printer (included with purchase)

USB Stick

Copy the G-code file onto a USB stick and plug it into your P2S (no SD card slot)

Pen or Marker

Stabilo Point 88 recommended (8–12 mm diameter pens also work)

Paper

Secured to the bed with tape or clips

1

Login & Create Your Design

Start by logging into your 3DPlotter account. Once in the app, you can create designs using:

  • Text tool - Type with 50+ single-stroke Hershey fonts
  • Image upload - Convert photos to plottable vector paths
  • Drawing tools - Freehand drawing and shapes

Select Your Printer:

Choose P2S from the printer dropdown. This automatically sets the correct bed size (256×256mm) and attachment offsets.

3DPlotter printer selection dropdown showing Bambu Lab P2S selected with bed dimensions 256x256mm
Select P2S from the printer dropdown to set correct bed dimensions

Enable Pen Plotter Mode:

Make sure the Pen toggle is enabled in the top toolbar. This activates pen plotter mode with the correct settings for your printer.

3DPlotter app pen toggle switch enabled in the toolbar for Bambu Lab P2S pen plotting mode
Enable the Pen toggle to activate pen plotter mode
3DPlotter app canvas interface showing a map design ready for plotting on Bambu Lab P2S with 256x256mm bed area
The plotter canvas with P2S selected, showing your design on the effective plotting area

Download the Pen Holder STL:

Click Resources in the top toolbar, then open 3D Pen Models. Two pen holders work on the P2S:

  • P2S Pen Plotter Toolhead by Sebas — purpose-built for the P2S (also on MakerWorld)
  • Head Mount V1 - Series X & P by Falu — the same modular holder used on P1S and X1 series printers
3DPlotter Resources button in the top toolbar for accessing 3D Pen Models
Open Resources from the top toolbar to find 3D Pen Models
3DPlotter 3D Pen Models page showing P2S Pen Plotter Toolhead by Sebas and Head Mount V1 Series X and P by Falu
Download the Sebas P2S toolhead or Falu Series X & P head mount from 3D Pen Models
2

Configure Plotter Settings

Select your printer and configure the Z-height settings. These values control how high the pen lifts and how low it draws.

Recommended Settings for Falu & Sebas Pen Holders

Z-Draw (pen down)

17 mm

Z-Lift (pen up)

25 mm

These values were calibrated with the Falu (Series X & P) and Sebas (P2S) pen holders and a Stabilo Fineliner Point 88 (0.4 mm) — the same pen shown in the position reference at the end of this guide. Seat the pen so about 4 cm protrudes above the holder. You may need to adjust slightly for other pens.

With this pen and holder combo, calibration is optional — you can skip to Step 4 and start plotting.

Configuration steps:

  1. 1Open the Settings panel in the app
  2. 2Select "Bambu Lab P2S" from the printer dropdown
  3. 3Set Z-Draw to 17 and Z-Lift to 25 (Stabilo Point 88 with Falu or Sebas pen holder, ~4 cm pen protrusion)
3

Pen Height & Speed Calibration (Optional)

Using a Stabilo Point 88 with the Falu (Series X & P) or Sebas (P2S) pen holder at Z-Draw 17 and Z-Lift 25? Calibration is optional — apply those presets in Plotter Settings and start plotting. Run calibration only if you switch pens, use a different holder, or want to fine-tune line quality.

Calibration finds your optimal Z-Draw (pen-down height) and Draw Speed by printing labeled test lines at different combinations. Pick the row that looks darkest, smoothest, and most consistent — then enter those values in Plotter Settings.

Test lines run from Z High down to Z Low (high to low, default 16→4 mm) so the printer starts with lighter contact and gradually presses harder. Adjust Z High / Z Low in this panel if your pen sits lower in the holder.

When a row looks ideal, stop the print on your printer immediately. The file keeps going to lower Z values — continuing past your best line can press too hard and damage your pen tip or pen holder.

Dry run before calibrating

You must run the calibration G-code without the pen holder attached first. Watch the homing and travel paths to confirm nothing collides with the bed or frame.

  • Attaching the pen holder too early can drag the pen across the bed during homing.
  • A crooked or loose mount can crash the nozzle into the bed or tear your paper.
  • Always dry-run first, then attach the pen only when the file is ready to draw.

How to calibrate in the app

  1. 1Download the calibration G-code (Full or Compact test).
  2. 2Dry run: start the file on your printer WITHOUT the pen holder. Verify homing and movement look safe.
  3. 3Secure paper to the bed and attach the pen holder correctly (pen vertical, mount tight).
  4. 4Run the calibration again with the pen. The file draws labeled rows from your Z High down to Z Low at three speeds each (default Z16→Z4).
  5. 5As soon as a row looks ideal, stop the print — do not let it continue to lower Z values (risk of pen or holder damage).
  6. 6Note the Z-Draw and Draw Speed on that row (e.g. Z12 D45) and enter them in Plotter Settings.
  7. 7Optionally run a Fractal test to confirm on curves.

Open the Calibration panel at the bottom of the plotter sidebar and download a Full or Compact test. A confirmation dialog explains the full procedure before the G-code downloads. Open the plotter app.

4

Generate & Download G-code

Once your design is ready and settings are configured, generate the G-code file that your P2S will execute.

  1. 1Click the "Download G-code" button at the bottom of the settings panel
  2. 2Review the export dialog showing path count, layers, and plotter settings
  3. 3Enter a filename and click "Download" to save the .gcode file
3DPlotter G-code export dialog showing pen attachment mode, path count, and download button for Bambu Lab P2S
The Export G-code dialog shows your design stats and pen attachment instructions
5

Transfer to Your P2S

The P2S has no SD card slot — copy your G-code to a USB stick and plug it into the printer.

  1. 1Plug a USB stick into your computer and copy the downloaded .gcode file onto it
  2. 2Eject the USB stick safely, then plug it into your Bambu Lab P2S
  3. 3Secure your paper to the print bed using tape or clips

Important: When selecting the file on the printer screen, choose the file WITHOUT the underscore (_) prefix. Files starting with _ are thumbnails/metadata and will not print.

6

Dry Run Test (Required)

Why a Dry Run Is Required

  • You must verify homing, firmware calibration, and travel paths before attaching the pen holder
  • Never skip this step — attaching the pen too early can drag it across the bed or damage your P2S
  • Confirm the design fits within your paper boundaries

Dry Run Steps:

  1. 1

    Start WITHOUT the pen holder attached

    Select your G-code file on the P2S screen and start the print job. Do not attach the pen holder yet.

  2. 2

    Watch the calibration sequence

    The printer will run its calibration routine. This is normal.

  3. 3

    Printer moves to back center and waits 10 seconds

    After calibration, the toolhead moves to the back center of the bed and waits for 10 seconds. This is your window to attach the pen holder on a real plot. For the required dry run, you must let it continue without attaching anything.

  4. 4

    Observe the toolhead movement

    Watch as the toolhead traces through all the paths. Verify it stays within your paper area and follows the expected design.

7

Attach Pen Holder & Plot

Now that you've completed the required dry run, it's time to create your actual plot.

  1. 1

    Start the same G-code again

    Run the print job just like before.

  2. 2

    Wait for the toolhead to move to the back center

    Let the calibration complete. The toolhead will move to the back center of the bed.

  3. 3

    Quickly attach the pen holder (10 second window)

    You have 10 seconds to clip the pen holder onto the toolhead and insert your pen. The printer will beep and then automatically start drawing.

  4. 4

    Watch the magic happen

    After the 10-second wait, your P2S will automatically start drawing your design on the paper!

Pen Holder Attached to P2S

The Falu or Sebas pen holder clips securely onto the P2S print head.

3DPlotter P2S pen plotter toolhead attached to Bambu Lab P2S print head showing a Stabilo Point 88 mounted and ready for plotting

The pen holder attaches to the P2S print head — photo shows a Stabilo Point 88 installed.

Correct Pen Position in the Holder

Important: The reference photo below uses a Stabilo Fineliner Point 88 (0.4 mm). The Falu (Series X & P) and Sebas (P2S) pen holders were calibrated with this pen. This matches the app settings (Z-Draw: 17, Z-Lift: 25) with ~4 cm of pen protruding above the holder. Seat the pen so about 4 cm protrudes above the holder — longer pens may reduce the usable bed area.

Pen holder showing correct Stabilo pen tip position and offset alignment for accurate plotting on Bambu Lab P2S

Stabilo Point 88 in the Falu or Sebas pen holder — ~4 cm protrusion above the holder, tip aligned for accurate plotting

The only precaution worth mentioning is that these margins take into account that the pencil does not protrude more than 4 cm beyond the tool holding it.

See the P2S in Action

Watch the complete plotting process on the Bambu Lab P2S.

Bambu Lab P2S pen plotter attachment in action

Troubleshooting Tips

Paths are offset from expected position

Check that you selected "Bambu Lab P2S" in the printer dropdown. The attachment offset is automatically calculated.

Pen doesn't touch the paper

Decrease the Z-Draw value (e.g., from 17 to 15). Each pen has slightly different dimensions.

Pen drags too hard on paper

Increase the Z-Draw value (e.g., from 17 to 19). Seat the pen so about 4 cm protrudes above the holder.

Lines are broken or inconsistent

Ensure your pen has enough ink. Try a slower draw speed in the settings.

Ready to Start Plotting?

You now have everything you need to create amazing pen plots on your Bambu Lab P2S.

Get 3DPlotter - €29.90Back to P2S Overview

Related Resources

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