Howe, who is also a doctoral student in music theory and history at
Together, they have developed a process for using CT scanning technology not only to make images of those instruments but also to print 3-D copies of parts that will allow more of them to be played.
This week, they began seeking a patent for that process.
The CT scanning alone has yielded exciting results, including images that show the construction of an 18th-century English horn was much more complicated than experts originally thought. Because nobody would allow one of the rare and delicate instruments to be cut open, experts couldn't see the intricate set of bores and wooden pins used to hold it together, Howe said. The construction also didn't show up on a traditional X-ray because the pins are made of the same material as the horn.
A breakthrough by Shahbazmohamadi allowed the team to scan metal and wood at the same time. That allowed them to get exact 3-D images of items such as a mouthpiece from one of the first saxophones made by
"Only three original mouthpieces are known to exist in the entire world," Howe said.
Before this technology, an attempt to copy the handmade part would have required measuring it with metal calipers and other instruments, which would have left marks. An artisan would then have to translate those measurements into tooling for a duplicate, a time-consuming and costly process.
So instead, musicians have been jury rigging modern mouthpieces to fit old saxophones as best they can. The musical results can be disappointing, Howe said.
"If they can accurately reproduce the dimensions in the mouthpiece that
"This is pretty darned good, and it's an
The images can be kept on file, and as the technology improves, machines can make exact copies in the original materials, Shahbazmohamadi said.
The same technology could eventually be used to make copies of entire instruments or to repair broken ones. With the computer technology, flaws in the original can be fixed, he said.
Howe has already played one instrument, a 1740 recorder, with a replacement part made by the 3-D printer.
"The universal availability of 3-D printing, which is happening as we wait, will make all this work very relevant and not just for musical instruments," Howe said. "The ability to measure and replicate items that are difficult to measure and replicate is going to explode."
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