Da Vinci Reciprocating Engine

Working model of a DaVinci drawing of a mechanism used for powering a sawmill.

Category:

Science & Technology

Tags:

• DaVinci
• model
• mechanism

[Dr1Bot]

No, I was working from a model I saw in a traveling exhibit. I use Sketchup to design the lantern gears, and then make them on a Epilog laser cutter.

[rdmbox95]

I think it is actually a sawtooth. A square wave means it would instantaneously go from one position to the other.

[powermaks]

@therorybox nothing is perfect. that's what it looks like, put it under even a small load an you will see what im talking about. it looks perfect in a bad quality video. see it in person. it will have slightly rounded corners i now realize its a saw-tooth wave. those pegs dont mesh together perfectly.

[powermaks]

@rdmbox95 i guess it all depends how you think about it, yea, im starting to think that too. square waves are impossible to achieve mechanically.

[therorybox]

@powermaks The video shows that it doesn't. It is moving at a constant speed, changing direction at regular intervals. a sine wave would mean that it slows down when it gets to each end, and a square wave would mean that it moves ludicrously fast, even if the corners of the wave were slightly rounded. A square wave also stops at each end. This machine doesn't stop.

[powermaks]

@rdmbox95 in does. if built with extreme precision. but there is no such thing as "perfect" so the square wave will have slightly rounded corners.

[TheEros5211]

This is cool trust me i was in 8 class for competition must do that and its hard to make but cool

[Blacklemon67]

Awesome! I just got a make magazine in the mail and it had a how to in it for this :D

[DELTA1DSV]

excellent !!! thanks for showing your skills,