Part recommendation

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oxhey
Posts: 48
Joined: Tue Dec 29, 2015 8:31 pm

Part recommendation

Post by oxhey »

Im designing a spinner and Iv started to print off parts. I have a NanoTwo, so the only part I need to get is a motor.

So my questions are:

1. Is there a go-to motor thats widely used?

2. Would it be just a straight connection to the NanoTwo?

3. What else do I need for / other part recommendations

My Untitled Spinner (Almost Done) :

Image
ProtoBot - http://robotwars101.org/forum/viewtopic.php?f=1&t=2471

SUSPENDED! - I dont have the time/money to fully commit and I may have killed a motor and my NanoTwo :o !

I may give this another go at some point, but for now its over.

Rapidrory
Posts: 1160
Joined: Sun Nov 24, 2013 9:54 pm

Re: Part recommendation

Post by Rapidrory »

The red 2300kv DYS motors from Hobbyking are the easiest to use as you can bolt the blade directly to them if you have the right bolt pattern. The easiest way to do a blade is get Kcut to waterjet cut it for you. Only costs about £5 a blade and they'll source the material for you. I'd recommend 2mm stainless steel for the blade, though get a few cut as spares incase they go blunt.
Rory Mangles - Team Nuts

Robots: Nuts 2 and many more...

NanoTwo Motor Controllers: https://nutsandbots.co.uk/product/nanotwodualesc

oxhey
Posts: 48
Joined: Tue Dec 29, 2015 8:31 pm

Re: Part recommendation

Post by oxhey »

Thanks Rory,

How does that motor connect to the NanoTwo. From what iv seen its just wires and no connector.

Ill 3D print the blade it at first to make sure all the holes line up, but £5 a blade sounds like a bargain. Do you know what file format they would need the blade in?
ProtoBot - http://robotwars101.org/forum/viewtopic.php?f=1&t=2471

SUSPENDED! - I dont have the time/money to fully commit and I may have killed a motor and my NanoTwo :o !

I may give this another go at some point, but for now its over.

Occashokka
Posts: 433
Joined: Sun Nov 30, 2014 9:34 pm
Location: Stroud,Gloucestershire

Re: Part recommendation

Post by Occashokka »

Mine was more than £5 :o mine was probably a more complex shape and only 1 tho, The file format I used was .Dxf which I won't pretend to know anything about seen as I didn't design my file.
Team Badger
Has a 3d printer now yay
-£4.82+VAT (intact)
-cool modulated printed thingy
-not yet built nasty mean spinnt thingy

I'm gonna build something huge and stupid, try and stop me :P

oxhey
Posts: 48
Joined: Tue Dec 29, 2015 8:31 pm

Re: Part recommendation

Post by oxhey »

.dxf, good to know.

I think iv got an exporter plugin for sketchup.
ProtoBot - http://robotwars101.org/forum/viewtopic.php?f=1&t=2471

SUSPENDED! - I dont have the time/money to fully commit and I may have killed a motor and my NanoTwo :o !

I may give this another go at some point, but for now its over.

Rapidrory
Posts: 1160
Joined: Sun Nov 24, 2013 9:54 pm

Re: Part recommendation

Post by Rapidrory »

If you get a load of blades cut at once the price per blade comes down; I got 8 cut for £40.

To wire up the brushless, you connect it to a brushless ESC, that also needs to be connected to the battery, and the servo lead plugged into the servo port on the NanoTwo (though cut the red wire on the servo lead first)

ESC: http://www.hobbyking.co.uk/hobbyking/st ... w_BEC.html

Motor: http://www.hobbyking.co.uk/hobbyking/st ... ouse_.html

The motor says 3-4S, but just run it all on 2S; anything more than that and it'll likely just explode first hit, plus the NanoTwo can only take 2S

My blades were all done in Emachineshop, which is a free cad tool. This is much better than sketchup for blades as there is a tool to calculate the center of mass of the blade so that it's perfectly balanced (especially helpful for single tooth disks).
Rory Mangles - Team Nuts

Robots: Nuts 2 and many more...

NanoTwo Motor Controllers: https://nutsandbots.co.uk/product/nanotwodualesc

oxhey
Posts: 48
Joined: Tue Dec 29, 2015 8:31 pm

Re: Part recommendation

Post by oxhey »

Right I kind of understand how that would work.

I've done a diagram to help me understand it, but i'm not sure about that one wire from the brushless esc.

Image

Do you have a template for the blade with the correct hole dimensions?
ProtoBot - http://robotwars101.org/forum/viewtopic.php?f=1&t=2471

SUSPENDED! - I dont have the time/money to fully commit and I may have killed a motor and my NanoTwo :o !

I may give this another go at some point, but for now its over.

User avatar
UserFriendly
Posts: 119
Joined: Wed Feb 18, 2015 3:52 pm

Re: Part recommendation

Post by UserFriendly »

I'll defer to others with more experience, but you've not got enough wires on the ESC. The motor has 3 wires, and the ESC has power (black and red) and signal wires (3) - the picture on the hobby king site shows the ESC having 9 wires, so maybe there's a spare ground. Sorry for vagueness, someone will have to fill in...
Andy B - Team UserFriendly
Reading Cybernetics Graduate 1996
Trying not to take Antweights too seriously. I think I'm failing.
First AWS was 46.

oxhey
Posts: 48
Joined: Tue Dec 29, 2015 8:31 pm

Re: Part recommendation

Post by oxhey »

The picture on hobbyking is too zoomed in
ProtoBot - http://robotwars101.org/forum/viewtopic.php?f=1&t=2471

SUSPENDED! - I dont have the time/money to fully commit and I may have killed a motor and my NanoTwo :o !

I may give this another go at some point, but for now its over.

User avatar
UserFriendly
Posts: 119
Joined: Wed Feb 18, 2015 3:52 pm

Re: Part recommendation

Post by UserFriendly »

More like this?
Image
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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