All manufactured and manufactured parts delivered by Creallo are shipped after basic processing (sanding or support removal). This is the most basic machining for the service level, and since it is processed by several workers, all parts are processed under the judgment of the operator. We have summarized the defective cases and exceptions below.

Defective Product Standards

In case there is a problem such as deformation, damage, or omission during delivery despite designing in compliance with the design guide presented by Creallo
Outside the manufacturing tolerance range guaranteed by Creallo
In case the quantity and contents of the order received by Creallo are different
In case it is judged not to be included in Creallo's 'exception for defective products

Exception for Defective Products

1. Features of the Production Technology Itself

In the case of the result without post-processing (unprocessed finish), the characteristics of the production technology itself are reflected as it is. The basic surface characteristics of 3D printing technology, which are delivered without processing, are summarized below. Raw materials are often difficult to use as the final result of parts where appearance is important. If the appearance is important, it is recommended to use the post-processing directly.

2. 3D Printing Technology Common Features

2-1 Post-processing / In case the support is not removed

When machining is not very important

If the operator judges that the part is a housing enclosing a certain product, the outer surface can be machined and the inner surface can be delivered without processing.

For parts that are too small or too thin

Thin and long parts such as hair and tail shapes, and thin and wide structures such as thin hemispheres and wide plates may be damaged or deformed during the shipping process. In this case, we can send without post-processing and without removing the support. It can be easily removed using basic tools such as knives, scissors and nippers.

If the tool is difficult to enter

We do not remove supports in locations where tools are difficult to enter.

2-2 If there are scratches, etc. on the surface

When detailed processing is required

Parts that require detailed processing, such as corners of parts that are difficult to work with tools or around small letters, may be shipped due to omission of surface processing, or coarse sanding marks may remain like scratches.

If the tool is difficult to enter

The inner surface of products with small openings, such as bottles, may also be in poor processing condition as tools are difficult to enter.

3. SLA 3D Printing Method

3-1 When powder remains

During basic processing, sanding may be performed using sand. At this time, the used sand may remain in the form of powder on the surface or between complex structures. In this case, you can shake off the powder or rinse it off with water once.

engraved letters or figures

If there is a engraved part, the powder from processing may get stuck. Depending on the angle of light, they may appear white or black, but most are easily removed by scrubbing with a brush or scraping with a pin.

Inside face of complex part

In some cases, raw materials or sand used for processing are trapped in the inner surface and cannot come out. In this case, you can easily remove it by shaking it gently.

3-2 If there is a hole in the surface

In the case of a hollow hollow structure like a ball, if you make a 3D model so that there are no holes on the surface and request to be printed, a hole is randomly made outside and then printed. Since the supporter cannot be removed from the inside and the material is trapped inside, to remove the inside material, you need to make a hole on the outside before printing. At the operator's discretion, drill a hole in the best location to remove the material inside. If the hole is closed again, depending on the material, there are problems such as internal expansion or deformation during delivery, so sometimes the hole is sent without filling. The best thing is to order it with a hole in a good location even if you make a hole.

3-3 Surface Scratch [Translucent / Black Resin / Brown Resin / Heat Resistant Resin]

In the case of the above resin, due to the nature of the material, scratches can easily be seen on the surface even with small friction.

4. FDM 3D Printing Method

4-1 FDM output characteristics

In the case of FDM output, post-processing is not performed except for removing supports (supports) and rafts (pedestals). Due to this, the following phenomena may be found in the output, but we inform you that this is a phenomenon caused by the FDM output characteristics, not a defective factor.

Output layer texture
Nozzle traces
Output debris that has accumulated on the surface

4-2 Traces of support removed

Depending on the shape of the 3D model, the material used, and the output direction, the quality of the surface with the support removed may be dirty.

4-3 When sticky adhesive remains on the surface

For FDM, you can print after applying adhesive to the 3D printing bed for stable and high-quality printing. In this case, even the adhesive is washed and not sent. Since the adhesive is water-soluble, it can be easily removed by immersing it in water and rinsing it.

5. MJF 3D Printing Method

5-1 Rough surface

In the case of MJF printing, the surface is produced with a rougher surface compared to other printing methods due to the material and manufacturing characteristics.

6. SLM 3D Printing Method

6-1 Debris or Lines on the Surface [ Aluminum / Stainless Steel]

In the case of Creallo's metal 3D printing, it is processed without processing. Due to this, print residues or particles on the surface may remain, and lines (grain) may be generated due to the nature of the print method.

7. Painting

7-1 Partially unpainted

Our painting service of Creallo basically focuses on the 'outside', that is, the visible part. This prevents the occurrence of tolerances due to the paint in the case of a combined structure, and the part for fixing during painting may not work. This can be requested for full painting through a pre-production request prior to ordering, but may be additional working days than the working days provided by the real-time quotation service.

7-2 Surface texture

We are adding finishing materials to prevent scratches and protect the surface during painting. At this time, if it is judged that more surface protection is needed depending on the color, work by adjusting the amount of finishing material rather than other colors. This can result in subtle color differences and differences in texture.

7-3 Color difference

When painting, the worker checks the Pantone color, and there may be slight color differences as it is done manually.