Flow - 3Doodler

Flow Manuals

Ross Downey — Thu, 05 Feb 2026 16:19:56 +0000

Flow 3D Pen Manual

English

Alternate Languages (A-Z)

The post Flow Manuals first appeared on 3Doodler.

Flow Troubleshooting Guide

Ross Downey — Wed, 04 Feb 2026 10:49:55 +0000

3Doodler Flow Troubleshooting Guide (PDF)

Flow Frequently Asked Questions

What type of filament can be used with the 3Doodler Flow pen?

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The 3Doodler Flow is designed to use 1.75mm spooled filament. However, as the Flow’s temperature is adjustable, this opens up the ability to use 3Doodler Flow refills OR your favorite brand of 1.75mm spooled filament that prints/melts within the range the Flow provides (160° to 220°C).

Please note that we are unable to guarantee the quality, safety, or compatibility of any third-party filament.

Why is my 3Doodler Flow pen not heating up? I just see one Flashing Green LED and one Solid Red LED

What are the “+” and “-” buttons for on the 3Doodler Flow?

My 3Doodler Flow sometimes makes a slight crackling sound while extruding. Is this normal?

The filament is moving slowly. What do I do?

Why is my 3Doodler Flow having difficulty feeding/gripping a new strand?

My Flow 3D Pen is broken. How do I fix it?

The post Flow Troubleshooting Guide first appeared on 3Doodler.

Flow Getting Started Guide

Ross Downey — Thu, 12 Mar 2026 10:02:09 +0000

Getting Started with your 3Doodler Flow

Not sure where to begin with your new Flow pen? You’ve come to the right place. Let’s get started with a few of the basics. By the time you’re done reading, you’ll be ready to Doodle like a pro. If you’d just like to dive into the manual, you can download it here.

Watch Getting Started Video

Basics

Plug in Your 3Doodler

Ensure you set your temperature to ABS for ABS filament or PLA for PLA filament.

Press Fast / Slow & Insert a Strand

Press either button to put your pen in drive mode, then insert the tip of a filament spool into the back of the pen. Push gently to ensure it engages with the gears and grips properly.

Ready, Set, Doodle

It will take a few seconds for your filament to extrude.

The Buttons

Fast / Slow Button

Single-click either the fast or slow buttons to start a continuous flow of filament. Extruding filament can be stopped by clicking either button at any time. The pen may sound like it is still extruding for a few seconds after — this is normal and is simply the motor reversing the strand slightly.

Reverse Feature

Double click either button to reverse filament. The pen will pulse slightly as it reverses. If the filament is too short to reverse, carefully remove the nozzle and use the unblocking tool to push the filament out.

Feeding Spools

First, try pushing your filament gently into the pen to ensure it engages with the gears. If the filament is too short to grip, use another piece of filament or the unblocking tool to push it into the gear system.

Watch How to Change Filament Video

Jammed Filament

The unblocking tool is included to help push filament out of the pen. While the pen is on and the nozzle is hot, unscrew the nozzle, double-click either speed button to reverse, then gently push filament out using the tool.

Watch How to Clear Jams Video

A Few Reminders

Follow the step-by-step user manual at all times.
Never force anything into place.
Ensure no filament is inside when replacing the maintenance cover.
Align tabs carefully when reattaching the cover.

Still Struggling?

Don’t worry, our support team is here to help. Please reach out to us here.

Pressing on Surface

Push the nozzle firmly onto the paper and allow filament to extrude for a couple of seconds, then lift. The extra pressure helps the filament stick. We call this “anchoring.”

Incorrect

Filament bunches when not properly anchored to the surface.

Correct

Press the nozzle firmly onto the surface and hold briefly before lifting.

Nozzle Removal

Use the nozzle removal tool to gently unscrew the nozzle while the pen is on and fully heated (LED blue or green). Do not over-tighten the nozzle and keep the tool centered to avoid damage.

Tips

Keep Your Filament Clean

Use clippers or scissors to snip melted filament ends to avoid jams.

Welding Filament

While extruding, touch the tip to both pieces to weld them together.

The post Flow Getting Started Guide first appeared on 3Doodler.