3D printing FAQ

3D Print FAQ

Questions and answers on the theme of 3D printing

  • No or bad Extrusion at start of print

This problem is most common in novice 3D Printers, and is therefore easy to solve!

The printer does not extrude filament at the first layer.

Possible causes:

  1. Nozzle temperature set incorrectly
  2. Nozzle too close to the build plate when printing starts
  3. Extruder gears dirty due to "Filament-Grinding"
  4. Extruder is clogged
  • What is 3D printing?

3D printers apply material from layer to layer. Control is done by a special 3D printer software. The basis for this is a 3D model that can be constructed or downloaded.

A fundamental difference in quality lies in the smallest layer thickness of the model. The thinner the layer, the finer the surface. This can vary between a few micrometers and a few millimeters.

  • What do you buy a 3D printer for?

The 3D printer is versatile. Unlike mass production, you can also produce individual functional parts with it.

3D printers are often used by modellers, hobbyists, and technology fanatics, for example.

You can print complex models or spare parts effortlessly.

  • Which 3D-Print methods are there?

There are many different 3D printing methods. The most common methods for home and desktop printers are FDM printers, as they are relatively inexpensive to buy and use.

FDM means: Fused Deposition Modeling.

  • What materials can FDM printers handle?

The most popular materials for FDM 3D Printers are PLA, ABS and PETG.

There are many more materials available for these printing methods, which materials you can use depends on your 3D printer.

  • Which material is better? ABS or PLA?

It is difficult to say. Each material has its advantages and disadvantages.

With PLA, the advantage is that no unpleasant odors arise during printing, and printing is simple.

In contrast to PLA, ABS has a higher temperature resistance, and therefore you need a heated build plate or a heated building space for processing.

  • Which filament diameter should I use?

A distinction is made between two diameters of the filament: 1.75 mm and 2.85 mm.

In general there are no right or wrong diameters, every 3D printer needs a different filament diameter. You can find exactly which one you need in the description of the device.

A few printers as an example:

1.75mm filament:

    • Wanhao
    • Creality
    • Zortrax
    • Raise3D

2.85mm filament:

    • Ultimaker
    • BCN3D


  • Where can I download free 3D models from the internet?

There are many 3D model databases. Here are a few: