Hi all, I have a few projects in mind that will require fabricating new parts. Having accurate 3D models helps with reverse engineering as well as the "will this new part fit in the old area?" problems. These are just some initial tests, but I thought they were pretty cool, so I figured I'd share. I expect to throw these away for more appropriate examples. If anyone is curious, this is using an Einstar 3D scanner (consumer grade). Took about an hour to do the engine bay, and an hour to do the rear. Shiny material is harder as it reflects the scanner light. Overall, I'm happy with how easy this was! I didn't use markers, and only a little scanning spray. Image Unavailable, Please Login Image Unavailable, Please Login
In the near future, we'll print out our parts from a catalog that we either have to pay for (from the manufacturer) or from hobbyists who donate their time creating models. The trick with a 3D scan is producing a usable model.
With this tier of scanner, I don't think it's too common to use the scanned "model" (point cloud / mesh) directly (to your point). Rather, the scan mesh acts as a reference for reverse engineering. So basically, you're building the model from scratch, with the scan mesh as a guide. I'm optimistic this will work for my purposes; albeit with a fair dose of frustration and limitation...
Yes, definitely. There are free mobile apps on one end of the spectrum, and professional scanners in the 10s (if not 100s) of thousands. Mine would be on the upper end of the consumer level. The next level up starts around $5k. HP Academy has a nice intro video on the subject, and even shows how to use a mobile app. Side note, he calls it "are-kit", but it's "A"-"R"-"kit" (as in, augmented reality kit).
The technology of scanners changes so quickly and getting really good scans are really the domain of high dollar machines. Unless you are using it all the time there is little reason to invest in your own scanner. With a little research it is easy to find local companies that have super high end scanners and will scan you items for a small fee. My trick is to reach out to a local dealer of scanners as they will always have the newest stuff that they are happy to demo. Show up with a Ferrari and you will likely get a free scan in exchange for some photos and maybe some social media content for the dealer.
There's a lot of truth to this, but the convenience of having your own frees you to prototype / play around without requiring the justification of having to book time with a local shop. Cost is relative, but $1k is worth it for me to be able to think of an idea, run out to the car, and 30 min later have a mesh in Fusion 360 to play with. Yeah, helps to have a Ferrari. When I had a Cobra replica, FARO came out and scanned it for free, and then provided the mesh afterwards. They made a PR thing out of it (2014).
