Safe Sleeve
Jake Cordover
Weekly Accomplishments:
Unfortunately, the shipment of the sensors continue to cause delay into the programming aspect of the project. I have been in touch with Yost Labs (the supplier), and the reason for the delay was that they ran out of casings for the sensor, so supposedly they were shipped midweek. This is frustrating, especially considering how much was spent, nonetheless hopefully they will be here soon.
Otherwise, I have begun to prototype the 3D printed enclosures in CAD. My enclosure includes sew tabs on the bottom and a top that “snaps” into the bottom, therefore the sensor into place. I am attempting to emulate the annular cantilever snap fits as seen here: https://www.sculpteo.com/blog/2018/04/25/how-to-connect-two-parts-with-3d-printed-joints-and-snap-fits/.
The next step in the process is to print the prototype and make sure the design works, before trying it on the real sensors, and then finally sewing it down to the sleeve. I have included images of the design below.
Images:
The first three images represent the bottom of the enclosure. This sensor will be placed into this sewn down piece( see sew tabs in the bottom). Additionally, the cutouts will be where the top piece “snaps” into place
The next piece is the top that snaps into the bottom, securing the sensor into place.
And the two pieces fitted together:
Materials (no change):
| Part/Material | Price ($) | Quantity | Link |
| Potential IMU 1 | 117 with discount secured | 1 | https://yostlabs.com/product/bluetooth-mini/ |
| Knee Sleeve 1 | 16.97 | 1 | https://www.amazon.com/PowerLix-Compression-Knee-Sleeve-Basketball/dp/B01MQYADOT/ref=sr_1_5?keywords=powerlix+knee+sleeve&qid=1552264456&s=gateway&sr=8-5 |
| Knee Sleeve 2 | 20 | 1 | https://www.amazon.com/Zensah-Knee-Compression-Sleeve/dp/B00GPU7QRO/ref=sr_1_6?keywords=zensah+knee+sleeve&qid=1552264496&s=gateway&sr=8-6#customerReviews |
| 3D printingand associated costs | TBD | TBD | TBD |
Areas of concern:
At this point, I would like to be able to start work on the sensor, theres not too much to do without it. Hopefully this issue resolves itself soon…
Otherwise, I’m still undecided on the method of attachment of the enclosure to the sleeve. I talked with Professor Fairbanks about potentially cutting a hole in the sleeve, which I think may look the best, however, I’m not sure if that will degrade the integrity of the sleeve too much.
I have never 3D printed before, so if I go this route, I’m not sure if the material will flex enough (without breaking) for my design. Additionally, I’m not sure of the type of margins I need to build in for the print to be successful.