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I think it's called a "fast return actuator". I used an offset pin in a circular cam that goes into a slot in an arm. It's easiest to look up the term and see a drawing or graphic.

I use this application woodgears.ca/gear_cutting/index.html

@@spetzlerdesigns thanks you

Thanks for watching!

Thank you!

Thank you! 😊

I am so glad you found me. You're welcome to swing by the shop any time if you want to see what I'm working on. I'm @spetzlerdesigns on Instagram if you want to message me directly.

Good eye. I do tend to pay attention to the default position of the arms a lot more than I used to. All of the arms are somewhat adjustable (the arms are not glued solid, but jointed with a piece of leather cord that allows me to rotate them), so you can re-position the arms of all of these robots to some degree. They may go back to the default position over time though, so it's still important where they are rotated when I first glue them.

My apologies. I am old enough that I've lost the ability to hear high frequency sounds. I can't hear the sound, so I'm not sure how to know if it's there. I'll try turning off all the equipment in the shop. Hopefully it's not my desk light.

I'm struggling to finish the last 4, but I am determined to do so. I've been wanting to try making whirligigs, and I purchased the supplies to do a musical door chime. Honestly, there's so much that excites me that I'm having trouble deciding what I want to do next.

Yes. That was my first thought too. The two companies I contacted to make one for me told me that the size is too small and detailed for them to turn into a brand. I haven't tried any others recently. That would be ideal though.

Thank you very much!

Definitely! I actually bought a book on whirligigs and have been wanting to try something different. Maybe this would be a good project. Good idea.

¡Gracias!

I'm planning on doing a lot more of these. It just takes me a really long time to make & edit them for some reason, so I have to save up the energy to do it. I still have 4 more in the robot series to finish and then we'll see how motivated I am. Thanks for the nice comment!

Yes, it was my second automata I ever made. I need to try that again.

I used my bandsaw to get a rough shape and then carved the rest with a rotary tool. I made a lot of mistakes to get to that one.

@@spetzlerdesignsyou should be proud of it. I do some wood carving and it looks top notch. Great work.

@@rogercoker1938 Thank you

It might be a while. I have a long list of things I've been wanting to make, but I'll likely make something with that same mechanism again.

I don't think I can explain it in words because I don't know what the components are named. It's basically an offset cam shaft with a slotted wire loop so that the wire goes side to side, but not up and down.

I've been thinking about doing more of them. They're so fast to make that it would make a good tutorial.

Fantastic! If you are willing, share it with me when you're done. I'd love to see it.

Fantastic! Please share the results. I'd love to see it.

Thank you

You are so welcome!

Thank you for telling me. I was worried it was too much.

I was thinking something similar while I was editing the video. For some reason it does not look the same in person as in the video, but you're right, even in person it would look a bit better with a more neutral neck position.

Thank you for that. I am so glad that it made a good memory for you!

I agree, it would be so much better. I am not sure where to find un-copy protected background music and this was the least terrible I could find in the RUclips library within the hour or so I was willing to search.

Thank you!

Thank you!

You have my permission. Have fun!

@@spetzlerdesigns Спасибо

It's not obvious (and it's not exactly what I was going for), but I like the emotion of it and it fits with how I have been struggling lately. Not all of these practice pieces are turning out like I want. It was originally supposed to be the little robot looking at it's arm and then seeing how it ties into the mechanism underneath (understanding how it works), but the arm completely blocks the face and the movement ended up being too cyclical to get across the original intent and just came across as more of an anguish... Which is what happens to me when I begin to understand how I work (mentally). So, I just decided to lean into that side of the meaning of understanding - which could have been done more effectively (or give it a better name like "anguish"). So, it is what it is and I will move on to the next practice piece. I did learn a bit more how to make a complex movement in the simplest way possible, so it was still worth finishing and publishing - maybe someone else will make use of that movement in a better way.

Thanks!