New filament from A to Z – quick guide

13 November 2026 · 2 min read

New filament from A to Z – quick guide

A short guide for every new spool – from unboxing to the first print. Print it out and hang it next to the machine.

  1. Unpack and check – the spool label and the manufacturer’s technical data sheet (TDS): temperatures, drying, bed. That is your starting point.
  2. Dry it – always. New does not mean dry: every spool picks up moisture in the factory, in transit and on the shelf. Dry it as the manufacturer recommends.
  3. The right nozzle – carbon or glass fibre filaments (CF / GF) only on a hardened steel nozzle. Change the nozzle only with the 7 mm wrench.
  4. Load in Revo OS – machine screen → Filament → Load. Wait until clean, even material comes out of the nozzle.
  5. Clean plate – no fingerprints. Choose the smooth or textured plate and set the same one in the slicer.
  6. Wizard in [r]evo Slicer – Calibration → New Filament Wizard: temperature, flow, max flow, pressure advance, retraction. At each step you click whatever looks best on the print.
  7. Save the profile – brand + material + colour. Each colour separately: the pigment changes how the filament melts.
  8. First print – select the new profile before slicing. After the job, store the spool airtight with a desiccant.

Before you start

  • Manufacturer’s recommendations first. Every manufacturer has its own recipes – even the same PETG from two brands may need different settings. The wizard values are a starting point; the TDS and the spool label take priority.
  • One slicer. We prepare profiles for the machines we build and service in [r]evo Slicer and Orca Slicer. Copying settings “by eye” into another slicer changes the names and meaning of parameters.
  • Leave the printer profile alone. Kinematics, input shaping and limits are already calibrated – you calibrate the filament profile.

Order matters

Diagram: calibration order for a new filament – temperature, flow ratio, max flow, pressure advance, retraction
Five tests in the order of the [r]evo Slicer wizard.

Temperature affects flow, flow affects pressure advance, and pressure advance affects retraction. That is why the wizard always goes the same way: temperature → flow ratio → max flow → pressure advance → retraction. Details of every test: filament calibration step by step.

Related: drying filament, starting temperatures, first layer and Z offset.

If something goes wrong

Before you change several parameters at once, check the most common problems at the start. Change one thing at a time and write down what you changed – together with the calibration date and the nozzle.

Would you rather have someone who does this every day do it? We calibrate filaments and prepare ready profiles – get in touch.

Current versions of [r]evo Slicer are prepared for machines running Revo OS that we have commissioned. Do you have a machine from us or want Revo OS on your own? Write to us.

In what order should I calibrate a new filament?

Temperature, flow ratio, max flow, pressure advance and finally retraction – the same as in the [r]evo Slicer wizard.

Does new filament need drying?

Yes, always. New does not mean dry – a spool picks up moisture in the factory, in transit and on the shelf.

Does every colour need its own profile?

Yes. The pigment changes how the filament melts, so save each colour as a separate profile.

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