blog.lmorchard.com
@blog@gts.lmorchard.com  ·  activity timestamp 10 hours ago
blog.lmorchard.com
@blog@gts.lmorchard.com  ·  activity timestamp 10 hours ago
Jer 🚵🏼
@jerzone@techhub.social  ·  activity timestamp 7 days ago
Jer 🚵🏼
@jerzone@techhub.social  ·  activity timestamp 7 days ago
"x-ray" view of inside of whistle. As you blow air in the top it splits into two thin channels, which then guide air by the opening of two different sized chambers before exiting side of whistle. The size (and shape?) of chamber controls the frequency of the whistle. Bottom has an opening for zipper pull to be pushed into, there's a 4mm pin with chamfer to make it slightly easier to push the zipper in with, but difficult for it to come back out.
"x-ray" view of inside of whistle. As you blow air in the top it splits into two thin channels, which then guide air by the opening of two different sized chambers before exiting side of whistle. The size (and shape?) of chamber controls the frequency of the whistle. Bottom has an opening for zipper pull to be pushed into, there's a 4mm pin with chamfer to make it slightly easier to push the zipper in with, but difficult for it to come back out.
"x-ray" view of inside of whistle. As you blow air in the top it splits into two thin channels, which then guide air by the opening of two different sized chambers before exiting side of whistle. The size (and shape?) of chamber controls the frequency of the whistle. Bottom has an opening for zipper pull to be pushed into, there's a 4mm pin with chamfer to make it slightly easier to push the zipper in with, but difficult for it to come back out.
Jer 🚵🏼
@jerzone@techhub.social  ·  activity timestamp 7 days ago
Jer 🚵🏼
@jerzone@techhub.social  ·  activity timestamp 7 days ago
"x-ray" view of inside of whistle. As you blow air in the top it splits into two thin channels, which then guide air by the opening of two different sized chambers before exiting side of whistle. The size (and shape?) of chamber controls the frequency of the whistle. Bottom has an opening for zipper pull to be pushed into, there's a 4mm pin with chamfer to make it slightly easier to push the zipper in with, but difficult for it to come back out.
"x-ray" view of inside of whistle. As you blow air in the top it splits into two thin channels, which then guide air by the opening of two different sized chambers before exiting side of whistle. The size (and shape?) of chamber controls the frequency of the whistle. Bottom has an opening for zipper pull to be pushed into, there's a 4mm pin with chamfer to make it slightly easier to push the zipper in with, but difficult for it to come back out.
"x-ray" view of inside of whistle. As you blow air in the top it splits into two thin channels, which then guide air by the opening of two different sized chambers before exiting side of whistle. The size (and shape?) of chamber controls the frequency of the whistle. Bottom has an opening for zipper pull to be pushed into, there's a 4mm pin with chamfer to make it slightly easier to push the zipper in with, but difficult for it to come back out.
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