I made this to silence the passenger seat belt alarm in my F-150 whenever something of significant weight is in the front passenger seat. I previously had to reach across my truck and plug the seat belt in to accomplish this, but now I just leave this plugged in unless a passenger is in that seat. I designed this from scratch using the original seat belt as a template and used calipers to take dimensions. This seems to be a universal seat belt design that will also work on some late model Toyota and Honda vehicles (and likely others).
Would recommend a higher temp plastic since this will be used in a vehicle (I used ASA). Printed with .2mm layer height, 2-walls, 50% infill.
Disclaimer: Do not use this device to disable the seat belt alarm whenever a driver/passenger is riding in the seat. That is not the intended purpose of this design and should only be used when the alarm needs to be silenced for another reason. Please adhere to all pertinent seat belt laws for your region and do not use this device to circumvent those.
The author marked this model as their own original creation.