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 Magnetic V-gate motor
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iaec
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1033 Posts

Posted - December 06 2011 :  17:40:18  Show Profile Send iaec a Private Message  Reply with Quote
Hi all,

I have been designing a V-gate magnetic motor on paper wich include my mechanical background.
I dont know if its any good but we wont know if we dont try(fry) it.
When i have something made i`ll post it naturely

TimberJack

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ron_o
Moderator



United Kingdom
1052 Posts

Posted - December 30 2011 :  13:04:00  Show Profile Send ron_o a Private Message  Reply with Quote
Hi TimberJack

Maybe this will be of use to you , just a few of my calculations

Centre of rotor shaft to baseplate = 127mm

Baseplate "kicking" magnet 15 mm off rotor magnets ( when in kicked position )

KICKER material 15 mm wide brass strip

18mm,18mm,6.5mm, pivot centre , 6.5mm ,18 mm

first 18mm section is bent down 30 degrees

Magnet centres at 10.9 degrees ( 11.6mm centre to centre )

Bar magnet approx 70 mm X 10 mm X 10 mm

Kicking magnets 2 off 12mm long by 7.5 mm dia ( fastened side by side )

Rotor magnets 9.7mm dia X 15 mm long qty 34 per leg ( 68 total )

Outer "V" magnet centres = 58mm ( overall outer width = 67.9mm )

Inner "v" magnet centres = 22mm ( overall outer width = 31.7mm )

A counterbalance weight is fitted at 180 degrees to the line of 4 magnets

Drum diameter = 122mm

Drum + magnets outer diameter = 148mm

Drum Width = 74mm

Centre of rotor shaft to top edge of cam = 108mm ( equivalent to 19mm lift )

Distance from rotor magnet to rectangular bar (top) magnet:_

Lowered position = 15mm Raised position = 34mm


--------------------------------------------------------------------------------------------


Calculations


d = diameter of rotor magnet l = length of rotor magnet

Ideal ratio d : l = 1:1.5

Outer "V" centres = 6 x d outer "V" total width = 7 x d

inner "V" centres = d x 2.27

drum width ( approx ) = d x 7.6

drum diameter ( approx ) = d x 12.57

Magnet displacement ( degrees ) = 360 / 33 = 10.9'

outer diameter ( drum + magnets ) = ( drum diameter + ( l x 2 ))

kicker magnet to rotor magnet ( when kicked into posn ) = l

kicker magnet length = (( d x 2.27 ) - d)

kicker magnet diameter = d x 0.75

rotor to bar magnet ( not lifted , running height ) = l SEE bar magnet NOTES BELOW

rotor to raised bar magnet = running height X 2.26

cam lift = raised distance height - running height

cam edge to shaft center = raised distance height + l + ( drum diameter / 2 )

bar magnet

length to be not less than 7 x d side length = d

if sides are longer than "d" then increase rotor magnet to bar magnet running gap

to ((( bar magnet side length - l ) x 1.5 ) + l )

NOTE this amended value must be used in other related calculations

ron



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iaec
Forum Admin



1033 Posts

Posted - December 30 2011 :  19:18:46  Show Profile Send iaec a Private Message  Reply with Quote
Hi ron, thanks for the info :)
It seems to me that this info is for the V-gate youtuber Roobert33 has upload some time ago?
Is this correct?
Still havent got time to start on this...

TimberJack

***Possibilities Within The Impossible***

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ron_o
Moderator



United Kingdom
1052 Posts

Posted - December 30 2011 :  21:01:07  Show Profile Send ron_o a Private Message  Reply with Quote
Hi Timberjack

Yes , you are correct it does relate to Robert33 , ( plus a bit extra , lol )

ron
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iaec
Forum Admin



1033 Posts

Posted - December 31 2011 :  13:39:32  Show Profile Send iaec a Private Message  Reply with Quote
Thanks ron, i have other plans for the stator magnet...is it any good?
Dont know untill i build and try it :)

TimberJack

***Possibilities Within The Impossible***

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ron_o
Moderator



United Kingdom
1052 Posts

Posted - January 02 2012 :  14:12:35  Show Profile Send ron_o a Private Message  Reply with Quote
Hi TimberJack

lets just say it's a very good starting point !

ron
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