A new twist on the Teeter Totter Teeter Saw

[HumboldtEF]

A new twist on the Teeter Totter Teeter Saw, EDIT: Ver 2

I had a giant sawmill blade that looked like I could turn into some sort of crawl obstacle. I found an old differential that fit right into the center.
Combined they make a spinning teeter totter. The diff has a bearing on the bottom, that is whats contacting the ground and allows it to rotate.
The best part is its unpredictability, you may go straight over if you place the truck perfectly in the center, or it may buck you off the side as it spins when you aren't on center.

I may try to scale this up using wood instead.

I'd love to see what other folks could do with this concept.
https://www.youtube.com/watch?v=YT3ntdQenKw

<iframe width="560" height="315" src="https://www.youtube.com/embed/YT3ntdQenKw" frameborder="0" allowfullscreen></iframe>


It falls apart at the end, I glued them together afterwards.

Sorry for the poor production value, & let me know if this isn't the right pace for this.




EDIT: I completed version 2 of the spinning teeter todder which is a lot more challenging, I do need a good name for it though, chime in if you have a suggestion.

https://www.youtube.com/watch?v=5d4JZ6jy2VY&feature=youtu.be

<iframe width="854" height="480" src="https://www.youtube.com/embed/5d4JZ6jy2VY" frameborder="0" allowfullscreen></iframe>

 

[Mountainsofbeer]

I was going to say it could puncture the tires but then I saw it flips down before it has a chance too and I felt better haha.

I have built balance board OK. I didn't build a balance board I took a bare skateboard deck.. filled a 2liter bottle of soda with water and duct taped the crap out of the outside of it. Put the board over the duct taped bottle and instant balance board.

Maybe the water bottle trick will work for this? and other things too like a board of wood etc.

 

[HumboldtEF]

I was going to say it could puncture the tires but then I saw it flips down before it has a chance too and I felt better haha.

Yeah its old and dull as all hell. This idea has very little to do with saws really, its just what I had to work with. It really should be wood, like a rutted bumpy surface that would make staying centered difficult . I'll definitely make version 2.0 of this when I get a chance.

Maybe the water bottle trick will work for this? and other things too like a board of wood etc.

I like the water bottle/Balance board idea. Make the truck surf the board on top of rolling logs. I do have a wood lathe, hmm
A little truck treadmill lol

 

[HumboldtEF]

Here's a bit of TRX-4 action on the teeter saw

https://www.youtube.com/watch?v=tr1EwhiT2i0&feature=youtu.be

<iframe width="560" height="315" src="https://www.youtube.com/embed/tr1EwhiT2i0" frameborder="0" allowfullscreen></iframe>


taken with my new GoPro, hopefully its better footage.

 

[HumboldtEF]

I completed version 2 of the spinning teeter todder which is a lot more challenging, I do need a good name for it though, chime in if you have a suggestion.

https://www.youtube.com/watch?v=5d4JZ6jy2VY&feature=youtu.be

<iframe width="854" height="480" src="https://www.youtube.com/embed/5d4JZ6jy2VY" frameborder="0" allowfullscreen></iframe>

The top is 3/8 plywood about 40" diameter set at 42-43-ish degrees, there are bearings (lazy suzan hardware) on the top and bottom of the pivot upright.
The goal is to get straight up and over cleanly without spinning I guess. I've only managed to do it cleanly a handful of times out of the hundreds of attempts, its pretty tricky.

I could see this being setup with a trail on each end and a drop off or water on the sides to punish you.


I've updated the first post.

 

[clm]

The Pizza of Doom!