I have a standard 5v
I am using the horn it came with it, I mean this piece:
Like the long arm in the middle. Each of its holes are 1mm diameter.
Then I have a 3d printed crankshaft I did:
Its holes are also 1 mm. So while the servo horn is attached to the servo, I attach this crank to the horn in order to lift or lower a small scructure.
What I am not sure is hot to connect these 2 pieces (horn and 3d printed crankshaft). So far I have been using a paper clip, and at both end of it I placed 2 blobs of tin using a soldering iron. This has worked for nearly a year, but today I failed, and I was wondering if there's something more specific for my problem, which seems something common.
I have seen some people use something called Dubro EZ connector, but it seems an overkill, plus it won't have space for my 3D printed piece. Some people seems to use a clevis pin, but I cannot find any with a diameter of less than 1.
So my question is, how can I fix it? What can I put at both ends to stop if from slipping away? I have already tried simple things like simply bending it.