Connector Designs for 3D-Printed Glasses Experiment: Part 2/2

Now the connector pieces have been printed out! Time to see which one will perform the best.

This post is the second part of a 2-part series on creating glasses connector prototypes. For Part 1 of this post, go here:

For ease and speed of printing, I did not print out the entire temple piece, instead, using a Cutting Plane and Capping the resulting smaller pieces so quick prototypes can be repeatedly printed and tested. Here are the results:

  1. Notch and slot -Face to Temple: The face of the glasses will have a notch on the back end that will embed into a hole in the temple piece. This is fairly simple, but the temple and face pieces will not line up exactly. Here is what the original piece looked like in Rhino:

And here is the printed version:

This piece was successful. The notch fit snugly into the slot, and the connection between the two pieces is stable. From a design stand-point, this piece is worked well, as the notch fits in with minimal visual impact.

2. Hook Together: A chunk was removed from the face and temple pieces, so each slot will hook onto each other. Here is the original piece in Rhino:

And here is the printed version:

This prototype was more of a failure from a design and functionality standpoint. The pieces hooked easily and loosely onto each-other, but the potential for slippage is high. This would probably work with the heavier full-temple piece hooking onto the face of the glasses, but I am not going to move forward with this prototype.

Notch and Slot -Temple to Face: The temple of the glasses will have a notch built up, that will slot into a hole in the face piece. By building out the notch-piece, the temple and face will line up exactly, which will look-better from a design standpoint. Here is the original piece in Rhino:

And here is the printed version:

This one also worked well: The notch fit snugly into the temple, and from a design standpoint, the impact is minimal, with only a small piece of the notch standing out, and both pieces aligning. However, this design did not provide as much stability as the first option, and there is potential for breakage at the point of contact between the notch and the temple piece.

End Results: The first option seems to be the winner, with the third coming in second: It is the most secure connection between the glasses face and the temple, and seems to have the least impact design-wise. Going forwards, these provide a good basis for prototyping the glasses as whole.

However, I am going to tweak the concepts for both designs, to see if any improvements can be made, before the final iteration of the prototype connector. If possible, the creation of a moving hinge will be ideal.

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