What are some of the most common 3D printing post processing challenges and how do you overcome them?

1 Support removal

One of the most common post processing challenges is removing the support structures that are used to hold up the 3D printed parts during printing. Support structures can leave marks, scars, or gaps on the surface of the printed parts, affecting their aesthetics and accuracy. To remove the support structures, you can use various tools and methods, such as pliers, knives, sandpaper, heat, water, or chemicals. Depending on the type and material of the support structures, you may need to apply different levels of force and care to avoid damaging the printed parts.

2 Surface finishing

Another common post processing challenge is improving the surface quality of the 3D printed parts. 3D printing often results in visible layer lines, rough textures, or uneven colors on the surface of the printed parts, which can affect their appearance and performance. To smooth and polish the surface of the 3D printed parts, you can use various techniques, such as sanding, filing, scraping, buffing, or coating. Depending on the material and shape of the printed parts, you may need to use different grits, tools, and materials to achieve the desired level of smoothness and glossiness.

3 Dimensional accuracy

A third common post processing challenge is ensuring the dimensional accuracy of the 3D printed parts. 3D printing can introduce errors and deviations in the size, shape, and fit of the printed parts, due to factors such as printer calibration, material shrinkage, warping, or deformation. To measure and correct the dimensional accuracy of the 3D printed parts, you can use various instruments and methods, such as calipers, micrometers, gauges, or software. Depending on the tolerance and specification of the printed parts, you may need to adjust the printer settings, modify the design, or re-print the parts to achieve the required accuracy.

4 Strength and durability

A fourth common post processing challenge is enhancing the strength and durability of the 3D printed parts. 3D printing can create parts that are weak, brittle, or prone to cracking, breaking, or wearing out, due to factors such as material properties, printing parameters, or environmental conditions. To increase the strength and durability of the 3D printed parts, you can use various treatments and methods, such as annealing, curing, gluing, welding, or reinforcing. Depending on the application and function of the printed parts, you may need to apply different temperatures, pressures, or materials to improve their mechanical and physical properties.

5 Color and appearance

A fifth common post processing challenge is modifying the color and appearance of the 3D printed parts. 3D printing can produce parts that are dull, faded, or inconsistent in color, due to factors such as material quality, printer settings, or exposure to light. To change the color and appearance of the 3D printed parts, you can use various techniques and methods, such as painting, dyeing, staining, or printing. Depending on the desired effect and style of the printed parts, you may need to use different types, colors, and patterns of paints, dyes, stains, or prints to customize and enhance their visual appeal.

6 Safety and hygiene

A sixth common post processing challenge is ensuring the safety and hygiene of the 3D printed parts. 3D printing can involve materials that are toxic, hazardous, or allergenic, such as plastics, metals, or resins. These materials can pose risks to your health and environment, especially if they are not handled properly or disposed of safely. To ensure the safety and hygiene of the 3D printed parts, you can use various precautions and methods, such as wearing gloves, masks, goggles, or aprons, ventilating the workspace, cleaning the printer and tools, or recycling or disposing of the waste materials. Depending on the type and amount of materials used, you may need to follow different guidelines and regulations to protect yourself and others from potential harm.

7 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?