Converting two way linear motion into one way rotation 2

[DarinSelby]

I have recently come across this mechanical animation.

How would this beveled, helical spiral be 3D printed?

The video was made in "Autodesk Inventor".

https://www.youtube.com/watch?v=4ziGR9ggO60&feature=youtu.be

This Spring Toggle Mechanism is out of synch a little bit. It is the closest that I could get in ezgif.com

https://www.youtube.com/watch?v=kjRbsF9gkyI

Imagine the red follower roller cams at the ends of the spring toggle mechanism. Here is a look at the follower cam:

http://www.ikont.co.jp/eg/product/needle/ndl0602.html

Would someone be willing to attach these two separate animations into one?

Or, at least explain how that could be done?

Thank you.

 

[handleman]

Meaning "do billable work for you for free"?

 

[Jboggs]

Regarding the silent motion in one direction, several companies make what they call "one-way bearings". I have used them in the past, and if properly applied they work well.

 

[IRstuff]

1> why wouldn't you just print them in the orientation shown?
2> rather than ridges, why wouldn't you make V-grooves?

As a side note, the older 5.25-in floppy drives used a spiral to convert rotation into linear motion.

TTFN (ta ta for now)
I can do absolutely anything. I'm an expert!

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[DarinSelby]

IRstuff yes, I'm new to this, and it sounds like that may be the way to go. This is the cam follower I had in mind.

http://www.ikont.co.jp/eg/product/needle/ndl0610.html

 

[hendersdc]

What do you want this design to do? There are much more efficient ways to turn linear motion into rotary.

If you absolutely want to stick with this concept, you can look at push screwdrivers for inspiration, you just need something to toggle the switch at the extents of travel to make the push and pull cause rotation.[URL unfurl="true"]https://www.amazon.com/Eazypower-81966-9-5-Inch-12-Inch-Screwdriver-One-Inch/dp/B0010XV0B4[/url]

 

[EdStainless]

Looks like a Yankee push Drill

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, Plymouth Tube

 

[itsmoked]

I think they were also called "speed-drivers".

Keith Cress
kcress -

http://www.flaminsystems.com

 

[IRstuff]

yup, I think I had one a long time ago.

TTFN (ta ta for now)
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[DarinSelby]

Thanks for all the good feedback. I'm doing some more sketches, so you'll be able to see what I'm trying to do with this.

 

[SnTMan]

Now there's something to look forward to

The problem with sloppy work is that the supply FAR EXCEEDS the demand

 

[IRstuff]

If you can live with the linear motion perpendicular to the rotation axis, a rack and pinion would work pretty well.

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