The most recent undertaking video from Carl Bugeja cleverly combines a number of methods to create a electrically actuated flexure bearings utilizing supplies and processes out there from PCB distributors.
A flexure bearing is a component with two inflexible buildings joined by a skinny space that acts as a hinge. For instance, consider a container with an hooked up plastic lid that snaps shut. Bugeja mixed that concept with versatile PCB actuators to provide an electrically-controlled bearing that deforms to generate movement.
Variations in designs and thicknesses (📷: Carl Bugeja, YouTube)
As with earlier initiatives, the video paperwork the preliminary design concept, a number of variations, and the necessity for iterations. Initially, Bugeja made 5 completely different flexure designs. A PCB fab manufactured the bearing body, flexure hinge, and adhesive. The one materials Bugeja had so as to add was the magnet.
A number of designs, just like the spring fashion, have been too fragile to be reliably assembled or used. Nevertheless, what Bugeja calls the “zig-zag design” carried out the very best of the 40 variations examined, which results in the query of what may such a tool do.
Zig-Zag design with a number of mm of motion (📷: Carl Bugeja, YouTube)
Bugeja explored 5 potential functions for the flexure bearing. Probably the most sensible possibility is a sound technology machine, which is unsurprising for the reason that complete construction resembles a speaker.
Trying a 7-segment show (📷: Carl Bugeja, YouTube)
Probably the most eye-catching try was a pop-up show that emulates a seven-segment show. Sadly, Bugeja encountered issues putting in the magnets, so the video doesn’t present a whole digit as useful. As an alternative, solely two components have been loaded. Much more unlucky, the outcome was not a flipping mechanism.
Bugeja closes the video with concepts on use this design approach for flaps and hints he could have another concepts within the works. You should try the complete video as a result of the nonetheless photos don’t give this flexure bearing justice.