Instructions | Scan, trace, design, print, fixed!

1
Using 2D scanning for fast feature extraction
1. Scan the bottom of the mouse on the MFP scanner at a known DPI.
2. Import the scanned image into my CAD software as a background image.
3. Scale the image to the true size. (The image size and DPI gives you the actual dimension of the scanned image area. Use that to figure out the scale correction.)
4. Create lines and arcs to establish key features. (Use the circle-by-3-points method for the arcs.) Bonus step: measure the tilt angle and use that to deskew the image.
5. Create a polyline to trace the contour of the battery pocket
This technique of putting an item on the scanner can be a much faster way to design an object than to break out the calipers.

Discussions

Neon22 wrote 02/21/2018 at 20:03

You can also take a picture with your phone (as parallel as possible and as far away as possible). Drop it into Inkscape and use the "Realscale" extension to resize it to a precise dimension using any measureable feature. Then use the "export to openscad" extension, set the thickness and print.
- https://inkscape.org/en/gallery/%3Dextension/
- https://inkscape.org/en/~Moini/%E2%98%85realscale-resize-by-line-of-known-length
- https://www.thingiverse.com/thing:1065500

Are you sure? yes | no

randallohman wrote 02/25/2018 at 19:38

Excellent. I teach 6th graders and I have them cut their 3D modeling teeth on OpenSCAD. They love to bring in images and use MS Paint to convert .jpg's to .png's necessary for the import.

Are you sure? yes | no

raheez2121 wrote 02/21/2018 at 19:29

How is work in this company.is it MLM company

Are you sure? yes | no

Scan, trace, design, print, fixed!

Discussions

Become a Hackaday.io Member