Partial electrostatic painting of car parts using EinScan HX.
Problem of Aesthetic Design in the Automotive Industry
Achieving planned aesthetic design in the automotive industry can be a serious problem, especially when it comes to applying electrostatic paint in two or more colors. This process often requires the use of caps and masks to prevent paint from getting on parts that should remain unpainted. However, there is currently no solution on the market that can be adapted to the mask.
3D scanner Shining 3D Einscan HX- Weight, kg 710
- Certificates CE; FCC; ROHS; WEEE; KC
- Dimensions, mm 108x110x237
- Camera Built-in color camera
- Depth of field, mm Fast: 200-700 mm, laser: 350-610 mm
- Scanning range Fast: 420x440 mm, laser: 380x400 mm
- Interfaces USB3.0
- Light source Blue LED, 7 blue laser crosses (+ 1 additional line)
- Volumetric accuracy Fast: 0.05+0.1mm/m, laser: 0.04+0.06mm/m
- Distance to object 470mm
- Distance to point Fast: 0.25-3mm, laser: 0.05-3mm
- Scanning speed Fast: 1,200,000 points/s, 20 fps, laser: 480,000 points/s, 55 fps
- Color scanning Yes (LED)
- Video capture rate, up to fps 55
- Scanning accuracy up to 40 µm
- Operating system Win10, 64 bit
Practical Example: Painting Car Parts
RASEC, a company specializing in 3D printing and working with various printer materials and sizes, offers adaptable solutions to meet the requirements of each customer. They have a client specializing in the production of alloy wheels. This company produces hundreds of different designs of alloy wheels, some of which need to be painted with black electrostatic paint in various areas, while others need to remain unpainted.
Such designs create significant difficulties, as there is no individual solution on the market for masking surfaces that should not be painted. As a result, the staff is forced to manually cover areas that should remain unpainted, leading to high labor costs and material losses.
Workflow of EinScan HX - Geomagic Design X
RASEC recommended designing and manufacturing reusable templates for each wheel rim. However, they needed to obtain CAD models of the rims in order to print masks in 3D. Considering that these are glossy parts, they decided to use the 3D scanner EinScan HX with a hybrid blue laser and LED illumination, which allows for capturing details even with bright and dark colored rims.
After completing the scanning, they sent the point cloud to Geomagic Design X to process the file and make the necessary adjustments to create a mask that would cover the parts of the rim that should not be painted. With Geomagic Design X, they were able to exclude from the CAD model the parts of the rim that should be painted.
Geomagic Design X also allows for printing a model in multiple parts due to the limited working area of a 3D printer, which has to print in parts for subsequent assembly.
More Savings, Less Environmental Pollution
Now the client can use their mask for painting without needing to allocate staff to cover unpainted areas. Furthermore, these templates can be reused thousands of times, leading to significant savings and a substantial positive impact on the environment by eliminating waste of plastic materials.
