Peter Waller Nano Adventures

If Fleaweights are just too big...

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Reala
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Re: Peter Waller Nano Adventures

Post by Reala » Mon Aug 29, 2016 10:57 am

peterwaller wrote:Here is a quick video of my Leming Nanobot but you still don't get the scale.
https://youtu.be/jqnVIo8jXWg
So here is a picture against an Ant and a Flea.
Image
Both of those help a lot - thanks, Peter!

How much do Flea and Nano Bots cost you to build in comparison to your ants? I'm guessing that they are around about the same when it comes to building a robot under 150 grams?

I'm enjoying all your logs!

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UserFriendly
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Re: Peter Waller Nano Adventures

Post by UserFriendly » Thu Sep 01, 2016 11:06 am

Hi Pete, I've just switched on to your youtube channel, and I've just seen this video:

https://www.youtube.com/watch?v=yddKmKDrq0M

Is that just a very fast flipper servo, or is there some fancy mechanism to make it flip so?
Andy B - Team UserFriendly
Reading Cybernetics Graduate 1996
Trying not to take Antweights too seriously. I think I'm failing.
First AWS was 46.

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peterwaller
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Re: Peter Waller Nano Adventures

Post by peterwaller » Thu Sep 01, 2016 6:39 pm

It is an elastic powered flipper.
Two slowish but powerful servos force the flipper down against the elastic where it latches then the controller returns the servos almost to the other end of the travel.
When I fire the flipper the servos travel to the end releasing the catch and then the controller automatically rests it again ready for the next flip.
Image
Here is the cam and latch mechanism.
Image

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UserFriendly
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Re: Peter Waller Nano Adventures

Post by UserFriendly » Fri Sep 02, 2016 12:34 pm

Thanks for letting me see those. Many times I've thought of these kind of mechanisms. This is an Antweight I presume, rather than flea?
Andy B - Team UserFriendly
Reading Cybernetics Graduate 1996
Trying not to take Antweights too seriously. I think I'm failing.
First AWS was 46.

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peterwaller
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Re: Peter Waller Nano Adventures

Post by peterwaller » Fri Sep 02, 2016 2:44 pm

Yes its an antweight I have had several attempts at this type of flipper and I expect I shall have several more.
It was working quite well and was the first not to flip itself but kept failing to reset after a few goes.
I actually had a look at it a couple of weeks ago and noticed one of the servos was stopping working when it got warm. :oops:

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Shakey
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Re: Peter Waller Nano Adventures

Post by Shakey » Wed Sep 14, 2016 11:44 am

What deltangs do you use in yours? I can't seem to find one that has reverse in the built in ESC's.
Nuts And Bots - For all your components and ready built antweights!

Alex Shakespeare - Team Shakey / Nuts And Bots / Team Nuts:
AWS 44, 45, 49, 51 & 55 Winner - Far too many robots!

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peterwaller
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Re: Peter Waller Nano Adventures

Post by peterwaller » Wed Sep 14, 2016 2:26 pm

I use the Rx47 as per:
http://www.deltang.co.uk/rx47a-v611.htm
If you look at the previous page of this thread you can see how I modify it to be plug in so a commercial loom can be used.

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peterwaller
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Re: Peter Waller Nano Adventures

Post by peterwaller » Sat Oct 15, 2016 12:27 pm

Here is the Nano I have built using the new gear motors and bang good receiver and controller that I was discussing under the Resource Website / ebay gear motors.
It was more a platform to try out the components than a serious attempt at a competitive nano.
Image
Image
Here you can see how slow it is.
https://youtu.be/NKYqw44zgcE
But at least it has some power.
https://youtu.be/uW44UxRlVBA
I did strip one of the gearboxes down but surprisingly it is a single stage epicyclic gearbox so no chance to change the gear ratios.
I might try it in a flea with much larger wheels to see what sort of speed I can get.

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