Peter Waller Nano Adventures

If Fleaweights are just too big...

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peterwaller
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Re: Peter Waller Nano Adventures

Post by peterwaller » Sun Mar 01, 2015 2:46 pm

Made various mods including smaller crankshafts with less throw, smaller batteries 2 x 60ma and new lighter shuffle plates.
This gives a much better action which although slow is useable.
All up weight is now just under 28 gms so almost 10 gms to play with if I decide to add any armour / weapons at a later stage.
Here it is up the right way.
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Here upside down
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Here it is in the now complete nano team
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Here it is in action which has lost a a bit of the comedy appeal.
http://youtu.be/Y_5XQLLGobQ

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Remote-Controlled Dave
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Re: Peter Waller Nano Adventures

Post by Remote-Controlled Dave » Sun Mar 01, 2015 2:49 pm

Nope, still comic. Still ace.
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Rapidrory
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Re: Peter Waller Nano Adventures

Post by Rapidrory » Sun Mar 01, 2015 2:52 pm

It's almost just vibrating along :L Are you using two cells just to get some more speed out of it?
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Re: Peter Waller Nano Adventures

Post by peterwaller » Sun Mar 01, 2015 3:10 pm

Dave I did say it had lost a bit of the comic appeal it doesn't flip on its rear any more.
Rory I took an old controller out of a previous version of Combatant which is a DT receiver with DT driver boards and a 5v regulator so it needs two cells to run.

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Re: Peter Waller Nano Adventures

Post by peterwaller » Mon Mar 02, 2015 10:05 am

I have added a scoop to the walker but because of th cube restrictions it has to drop down when it starts.
It is held in the up position by a catch that is attached to one of the shuffle plates which releases when the robot moves.
Here it is with the scoop up.
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Here with it down.
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And here in action.
http://youtu.be/NCw5INVCWsE
Even with a bit of brass in the scoop to ensure it drops properly it is still only 30 gms.
I have run out of numeric versions of Nano so I just going to call it ARENANOISE.

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Re: Peter Waller Nano Adventures

Post by Remote-Controlled Dave » Mon Mar 02, 2015 10:31 am

Love it. And Arenanoise is a superb name.
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Re: Peter Waller Nano Adventures

Post by EpicentrE » Mon Mar 02, 2015 10:37 am

Looking great Pete. I really must get myself a Nano.

Slightly off topic - and correct me if I'm wrong - but it looks like the scoop was printed in 3 pieces? What adhesive/solvent do you use to bond the pieces together?
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Re: Peter Waller Nano Adventures

Post by peterwaller » Mon Mar 02, 2015 11:23 am

I find with ABS normal plastic cement is the best it basically desolves the surfaces together.
The one I have at the moment is Humbrol Poly Cement.

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Re: Peter Waller Nano Adventures

Post by peterwaller » Wed Jul 08, 2015 3:46 pm

Finally got back to some robot work although with 32 packs of laminate flooring arriving today it might be short lived.
I have for some time been considering designing a gearbox for the nanos based on the small double motor units I bought some time ago.
Having spoken to the Reading boys last saturday and seeing Will now offerers one on his site I thought I would have a go.
I wanted it still to be a double unit but wider and shorter with an extra gear to slow it a little and give more power.
Here is what I have come up with it is 49mm tip to tip but a wheel should go around the gearbox without increasing the width.
Image
Mind you we now have 60mm to play with and there is always the diagonal.

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Re: Peter Waller Nano Adventures

Post by Rapidrory » Wed Jul 08, 2015 9:23 pm

Yeah, that's pretty much what I'm working on atm, although I would cut that bar at the back down to save weight... The 5 stage boxes are much more torquey and controllable as shown by Fite Me M8; I'm planning to upgrade Chug and 'Moon to them at some point as well... Should have enough torque to move an ant too so could be good for setups where powerful drive isn't a requirement but weight is a premium (eg big spinners ;) )
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Re: Peter Waller Nano Adventures

Post by Tashic » Wed Jul 08, 2015 10:39 pm

Does that mean a robot with 100g blade? Worse idea maybe?

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Re: Peter Waller Nano Adventures

Post by peterwaller » Tue Jul 14, 2015 7:23 pm

Made a few tweeks to the gearbox so it could run inside smaller wheels and reprinted in ABS.
Image
Here with the wheels with moulded tyres giving a total width of 49mm.
Image

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Re: Peter Waller Nano Adventures

Post by Shakey » Tue Jul 14, 2015 7:28 pm

Looking excellent Pete, this setup should give you a really nice drive.
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Re: Peter Waller Nano Adventures

Post by peterwaller » Wed Jul 29, 2015 6:20 pm

I have been experiencing some problems with my gearbox design when trying to run on a single cell.
The friction mainly from the output drive gear running in a 3D printed hole was causing intermittent starting.
I have managed to find some small bearings on ebay that are 4mm ID and 7mm OD.http://www.ebay.co.uk/itm/350731536566? ... EBIDX%3AIT
This just about fits as with the pitch between the shafts being 4mm and the shaft being 1mm the shaft just goes in although it has to be in contact with the outside of the bearing.
I have now incorporated the gearbox into a chassis in a rebuild of my Lemming which has proved almost uncontrollable in the past.
Image
Image

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Re: Peter Waller Nano Adventures

Post by haz » Wed Jul 29, 2015 7:09 pm

This is very nice, Peter.

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