A recent project I completed, totally overhaling the old stethoscope project I worked on. I am super pleased with the improvements to the manufacturing process and it is now able to be manufactured on a much greater scale.
I am excited to announce you can now buy the v2.0 stethoscope here.
Unfortunately, due to the Covid-19 outbreak we are unable to fully finish it and begin our testing. This is it’s state as of now… to be continued once we can get back to campus and machine the proper mounts and connect all of the wires.
With the general design coming together I wanted to see how the structure would react with the forces that it will be experiencing. I decided to run a (rather quick and dirty) solidworks simulation to get an idea of where possible points of failure may be.
From this test we can see that the maximum axial and bending stress is more than two orders of magnitude less than the yield strength of the material which is a good indication that a failure mechanism will likely not be from the beems yielding.
This was already to some extend the suspicion though and further simulations will need to be done to evaluate other factors such as vibrations.
For this part, I decided that making models for every single cut was counterproductive and learned how to use the weldment function built into solidworks. It allows for easy conversion from a 3D sketch to a full 3D frame.
There is still a lot of work to be done with some of the more tricky junctions but the general assembly is now coming together.
Projects 