Holocreators

Estimated reading time: mins

Last updated: 01.08.2020
Explanation

IKEA closet repair with 3D scanning and 3D printing

We digitally repaired the broken clothes rail holder of an IKEA closet and then 3D-printed it in plastic. We first 3D-scanned the original broken part using a 3D CT scanner (computed tomography 3D scanner). Afterward, we reconstructed the 3D scan using reverse engineering and thus repaired it. The finished file was 3D-printed inside a laser sintering 3D printer.

Estimated reading time: mins

Last updated: 02.08.2020
Explanation

What is the difference between NURBs model and a mesh?

A NURBS model consists of points connected by curves. A polygon mesh consists of thousands or millions of small triangles. CAD surface models are usually created using NURBS surfaces, while 3D scans are typically exported as a polygon mesh. The conversion from a polygon mesh to a NURBS model is called "reverse engineering".

Estimated reading time: mins

Last updated: 12.06.2020
Explanation

What is a Point Cloud?

A 3D scanner generates a point cloud. Each point in the point cloud is a measurement point that the 3D scanner has detected on the object’s surface. Each point has an XYZ value that determines its position in the coordinate system. In addition to the XYZ coordinates, certain point clouds can also store the color and light intensity of the measurement point. A direction vector can also be assigned to each point—this indicates the direction in which the point is oriented.

Estimated reading time: mins

Last updated: 01.08.2020
Explanation

Deviation analysis (nominal actual comparison)

We perform a deviation analysis in metrology to compare two 3D models with each other and to document the differences with a false color comparison. The analysis is mainly used in quality assurance to document reverse engineering deviations from the original 3D scan. If we compare the CAD data (nominal state) of a part with the 3D scan (actual state) of the same part, this is called a “nominal actual comparison”.

Estimated reading time: mins

Last updated: 06.08.2020
Explanation

What Types of 3D Model Databases Are Available?

We have compiled a selection of 3D model databases. You can download 3D models and then edit them in a 3D program or 3D print them. There are databases with free 3D models and those that sell them.

Estimated reading time: mins

Last updated: 12.11.2020
Explanation

How to 3D-scan people or animals?

With the help of specialized 3D scanners, you can 3D-scan people and animals. This allows you to create 3D models that can be 3D-printed or used for 3D animation. We'll show you three different devices that make such 3D scans possible.