![]() That way you can pretty accurately scan a contour or surface. There are of course also touch probes for CNC machines that can be used (ie on a 3D printer or cnc router), but haven’t got around to putting something together. With a couple of perpendicular shots and editing them side by side with some guide lines you can get pretty good results too. Using a DSLR camera with a telelens (ie 85mm or longer focal length) can also work, which has low distortions and can often be corrected if not done already by the camera. When saving the file as tif or jpeg, the dpi setting is often saved with it by the scanner software and Illustrator picks it up so you don’t have to mess around with the dimensions. I also just scan the image and use Illustrator measure tool to measure the features down to 0.01mm accuracy. You can use it to get the general shape, then adjust it with some measurements using a caliper. If the part isn’t perfectly flat you need to account for parallax distortion with 2D scanners though, your holes/features may be off. Illustrator files can often be directly imported as. I do this all the time, scanning using a 2D scanner and tracing it in Adobe Illutrator (you can use Inkscape too) using the pen tool (bezier curves) or the bitmap to vector converter. I have a couple of them, and I have been pondering scanning the piece as it is almost two D and seeing if I can import it into a CAD program as in image and essentially trace around it. I have a few notebook computers that are missing the hard drive covers, they de mil them by removing the drives and they do not bother to replace the lids and they tend to put the lids in another disposal stream. It is also really handy for things like power strips if you want to get all 4 screws to line up perfectly with the keyholes for mounting them. One of the admin staff saw me doing that and was asking if you could really copy disks that way. One time I was making a little rack to hold a bunch of disk drives and instead of farting around trying to measure the mounting hole centers I just put a drive in the xerox machine and used the exact copy as a template. I also used to use the photo copier at work for the same thing. It is calibrated with my printer and the results are more accurate than I can measure. Not so much for 3D printing, but for templates and things, I will often put an object on my scanner. Posted in 3d Printer hacks Tagged 3d scanning, blender, Photogrammetry Post navigation But if you have your heart set on a real scanner, there are plenty of open source designs you can print. ![]() Every time we see channel, we think we should learn more about Blender. However, Blender has a lot of power, so we suspect making the jump from can to the USS Enterprise might be more realistic for a Blender user.īesides, it is good to see how other tools work and we were surprised that Blender could be relatively simple to use. Once you have the measurements, of course, you could use the tool of your choice and since we aren’t very adept with Blender, we might have used something we think is easier like FreeCAD or OpenSCAD. Since it is just a can, there aren’t many required pictures or measurements as, say, a starship model. He also takes measurements using calipers, something you probably already have laying around. He does take one photo of the can, so there is a camera involved at some point. He shows you how using a Red Bull can which, granted, isn’t exactly the most complicated thing ever, but it isn’t the simplest either. According to, you might as well just draw your own model using Blender. When the process works, it works well, but the results can be finicky at best and will require a lot of manual tuning. There are many scanners - both commercial and homemade - that can take a variety of scans or images of a 3D object and convert it into something like a 3D printable file.
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