Can you use 1.75 mm filament in a 3mm printer?

Heads up, tech enthusiasts! If you’re engrossed in the world of 3D printing, you’d be familiar with the two dominant filament dimensions – 1.75mm and 3mm. Now, if you’re itching with curiosity about transforming 3mm filament into the slimmer 1.75mm variant to pair with your 3D printer, you’ve landed on the right page! Dive right in as I, Carolina – your tech trainee, guide you through this intriguing venture.


The optimal technique to morph 3mm filament to 1.75mm is by fragmenting the filament into minuscule bits, and then employing them as granules in a specialized filament creator. Alternatively, harness the power of a bespoke machine tailored for this transformation, flaunting a 3mm inlet and 1.75mm output.

However, let’s be honest, the pathway from 3mm to 1.75mm isn’t strewn with roses. It can be a tad cumbersome. But if you’ve got the tech-fire burning in you, sail forth and delve deeper.

Exploring the Conversion:
How to Adapt a 3mm 3D Printer for 1.75mm Filament
One of the driving reasons behind this switch is the expansive assortment of exclusive, composite, and avant-garde materials predominantly crafted in the 1.75mm diameter. To harness their potential, your 3D printer needs to befriend the 1.75mm filament.

Making the Switch: Fret not, as the transformation isn’t inundated with complexities. The pivotal component you’ll need is a hot end tailored for 1.75mm filament. Here’s a handy toolkit to assist:
– A 4mm drill
– 13mm Wrench
– Spanner
– Pliers
– Hex or L-key (3mm & 2.5mm)
– PTFE tubing (1.75mm)

You’d likely possess these tools, given their necessity in assembling 3D printers. Don’t forget the 4mm PTFE tubing – an essential for 1.75mm extruders.

Strategies to Switch from 3mm to 1.75mm Filament:
1. Construct a Machine with 3mm Input & 1.75mm Output: This demands technical prowess. Venturing into this without expertise might lead to unwarranted hiccups.
2. Fragment Filament into Granules for Filament Creator: This is relatively straightforward. Segment the filament, toss it into the creator, initiate the process, and await your filament!

Filastruder emerges as a remarkable platform for 3D printing fans. It’s a treasure trove of conversion tools, slice apparatuses, electronics, and more. Their kit offers on-the-fly filament creation, flaunting an upgraded motor and a selection of filaments.

Trading or Selling Your 3mm Filament: If you’re pondering an easier route, trading or auctioning your 3mm filament might be the answer. Platforms like eBay offer a space to monetize your unused spools, allowing you to invest in 1.75mm variants.

Pros & Cons of the Transition:
While 3mm filaments boast of stiffness optimal for Bowden setups, they might compromise on extrusion flow control. On the other hand, a few niche filaments are exclusive to the 1.75mm variant.

A Few Last Words:
Though filament conversion appears straightforward, the devil is in the details. There might be a need for additional components. The insights above, however, should provide a solid foundation for your filament transformation journey.