How to make a prop hub with magnet    Gallery
View related threads: (in this forum | in all forums)

Logged in as Guest



Users viewing this topic: none
    Search This Thread  
 
Printable Version

All Forums >> Glow Engines, Gas Engines, Fuel & Mfg Support Forums >> Engine Conversions >> How to make a prop hub with magnet
Page: [1]

Tower Hobbies Get Coupon Codes Brands  
Login
Message << Older Topic   Newer Topic >>
How to make a prop hub with magnet - 3/2/2005 11:00 PM   
Zafer



Posts: 169
Score: 100
Joined: 2/5/2004
Last Login: 5/20/2013
From: Ankara, TURKEY
Status: offline

Hi guys,

Could you tell us ( or share some photos on) how to make a prop hub with a magnet in/on it?

I am converting some engines which will work with elec. ignition but I need to see some examples of prop hubs with magnets in it.

I have read some treads about making hubs from alu. but I couldnt find a clear photo about that (that shows the magnet in/on the hub) . I have visited CH, RC ignitions sites already.

Thanks and regards.

Zafer



Hide Signatures
       Post #: 1

RE: How to make a prop hub with magnet - 3/2/2005 11:09 PM   
ZAGNUT



Posts: 2603
Score: 111
Joined: 2/26/2003
Last Login: 5/19/2013
From: tel-aviv, ISRAEL
Status: offline 		just drill a radial hole that's not too tight for the magnet and go slow to get the depth dead nuts...drop the magnet in, add a drop of green locktite or CA and then stake it in place with a punch or rusty nail...gently!


dave

_____________________________

"I'll take the money- and you can have the rope"


Hide Signatures

(in reply to Zafer)
       Post #: 2

RE: How to make a prop hub with magnet - 3/2/2005 11:53 PM   
KenLambert



Posts: 832
Score: 155
Joined: 12/19/2001
Last Login: 5/22/2013
From: Livingston, TX, USA
Status: offline 		you have to put the magnet in with the rite configuration ( pole position ) or the ign. will not trigger

I drill the hole undersize and press fit the magnet , Not a tight fit just enough to have drag with a little JB weld on the side first


_____________________________

website
www.lambertsrc.com

Hide Signatures

(in reply to ZAGNUT)
       Post #: 3

RE: How to make a prop hub with magnet - 3/3/2005 2:04 AM   
mikenlapaz



Posts: 1986
Score: 100
Joined: 12/7/2002
Last Login: 2/26/2013
From: La Paz BCS, MEXICO
Status: offline 		Ken
Do you just pass each side of the magnet past the sensor to see which pole triggers the sensor? Can passing the wrong side by the sensor damage the ignition in any way? The magnets I have (from CH) are marked for side to mount next to sensor but others would not be so marked.

_____________________________

trying to tax into prosperity is like a man standing in a bucket and trying to lift himself up by the handle W. Churchill

Hide Signatures

(in reply to KenLambert)
       Post #: 4

RE: How to make a prop hub with magnet - 3/3/2005 4:17 AM   
KenLambert



Posts: 832
Score: 155
Joined: 12/19/2001
Last Login: 5/22/2013
From: Livingston, TX, USA
Status: offline 		no it won't damage it , it just will not fire
Yes you pass it over the hall sensor some times the marks on the mags will disapear I also use C&H mags but sometimes by the time I handle them a few times and clean the oil and such the marker will be gone .


_____________________________

website
www.lambertsrc.com

Hide Signatures

(in reply to mikenlapaz)
       Post #: 5

RE: How to make a prop hub with magnet - 3/3/2005 8:55 PM   
smallplanes


 

Posts: 293
Score: 100
Joined: 2/18/2004
Last Login: 9/28/2010
From: Timmonsville, SC, USA
Status: offline 		Ignition will not fire until it just passes the magnet. I drill and press it in with a drill press and put some epoxy in the hole. If you drill it to big then you will need to punch it with the point of a tap or something sharpe. Punch it in four places around the magnet (12 oclock 3-6 and 9 oclock)
I might have a pic i will have to check and see.


Thanks
smallplanes


Hide Signatures

(in reply to KenLambert)
       Post #: 6

RE: How to make a prop hub with magnet - 3/3/2005 9:12 PM   
Zafer



Posts: 169
Score: 100
Joined: 2/5/2004
Last Login: 5/20/2013
From: Ankara, TURKEY
Status: offline 		One photo is better than one thousand words........ ( So you all know that I didnt understand a thing from all of the above)

Edited: What will be the size of the magnet ( and the hole to be drilled on the hub) . I understand that the hole should be a round one. Is only one hole ( and the magnet) enough?

Some photos will really make this clear... and I must confess that My English is not so bright...

Thanks and regards.

Zafer

< Message edited by Zafer -- 3/3/2005 9:47 PM >

Hide Signatures

(in reply to smallplanes)
       Post #: 7

RE: How to make a prop hub with magnet - 3/4/2005 5:44 AM   
airbornrc


 

Posts: 210
Score: 100
Joined: 2/13/2003
Last Login: 11/5/2012
From: olympia, WA, USA
Status: offline 		I don't have any photos, but what I do is machine the prop hub. Then machine a collar that is a nice slip fit over the outside of the rear portion of the prop hub. I mount the magnet in the ring then hold the ring to the hub with a set screw. I adjust the timing by loosening the set screw and rotating the collar.

Mark

_____________________________

Mark Anderson

Hide Signatures

(in reply to Zafer)
       Post #: 8

RE: How to make a prop hub with magnet - 3/4/2005 6:27 AM   
KenLambert



Posts: 832
Score: 155
Joined: 12/19/2001
Last Login: 5/22/2013
From: Livingston, TX, USA
Status: offline 		Ok Zafer these are just for you

Attachments
Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize



_____________________________

website
www.lambertsrc.com

Hide Signatures

(in reply to airbornrc)
       Post #: 9

RE: How to make a prop hub with magnet - 3/4/2005 6:32 AM   
KenLambert



Posts: 832
Score: 155
Joined: 12/19/2001
Last Login: 5/22/2013
From: Livingston, TX, USA
Status: offline 		here is a couple more just incase=

Attachments
Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize



_____________________________

website
www.lambertsrc.com

Hide Signatures

(in reply to KenLambert)
       Post #: 10

RE: How to make a prop hub with magnet - 3/4/2005 6:32 AM   
smallplanes


 

Posts: 293
Score: 100
Joined: 2/18/2004
Last Login: 9/28/2010
From: Timmonsville, SC, USA
Status: offline 		Hear is a few pic's i might need to take another for you. I made the prop hub in the pic its on a 46cc poulan chainsaw. Time it at 28 degs.



smallplanes

Attachments
Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize


Hide Signatures

(in reply to airbornrc)
       Post #: 11

RE: How to make a prop hub with magnet - 3/4/2005 7:08 AM   
mikenlapaz



Posts: 1986
Score: 100
Joined: 12/7/2002
Last Login: 2/26/2013
From: La Paz BCS, MEXICO
Status: offline
quote:

What will be the size of the magnet ( and the hole to be drilled on the hub) . I understand that the hole should be a round one. Is only one hole ( and the magnet) enough?


Zafer, could you tell us some more about the 'TYPE' of electronic ignition you plan to use. You fellas with more experience correct me if need be, I think there are some electronic ignitions available or that can be homemade that require more than just a single magnet passing a sensor. If may be possible that Zafer is planning on using one different than say the CH type that I use.

_____________________________

trying to tax into prosperity is like a man standing in a bucket and trying to lift himself up by the handle W. Churchill

Hide Signatures

(in reply to smallplanes)
       Post #: 12

RE: How to make a prop hub with magnet - 3/4/2005 7:34 AM   
KenLambert



Posts: 832
Score: 155
Joined: 12/19/2001
Last Login: 5/22/2013
From: Livingston, TX, USA
Status: offline 		3 w is useing one that uses 2 magnets the poles are switch so one turns it on and the other turns it off , but i think it is the senser that makes the difference


_____________________________

website
www.lambertsrc.com

Hide Signatures

(in reply to mikenlapaz)
       Post #: 13

RE: How to make a prop hub with magnet - 3/4/2005 11:14 AM   
Zafer



Posts: 169
Score: 100
Joined: 2/5/2004
Last Login: 5/20/2013
From: Ankara, TURKEY
Status: offline
Hi guys,

Thank you very much for the photos, So I know how the magnet is positioned generally.

I have a JWE ignition which I bought on EBAY. I have also some kind of ignition for 2 cyl. 3W engines. Here is the photo of the ignition. I think it is new. I plan to use this with a 21 cc Robin Weedeater engine ( must be a kind of Fugi - but it is nice, light and with 2 rings) which has a place in side the mounting plate. It has Walbro WY 25 carburator with 10,54 venturi . Maybe I change it since it lacks high end needle. ( I have also WT 20 and WA 46) I also saw a photo of a round magnet put on the shaft(back side) directly. But in that case I dont see how to adjust the timing....

Anyway, the only thing I need now is a hub with magnet.

Thanks and Regards.
Zafer

Attachments
Click to see fullsize image.
Click for fullsize


Hide Signatures

(in reply to KenLambert)
       Post #: 14

RE: How to make a prop hub with magnet - 3/4/2005 11:58 AM   
Zafer



Posts: 169
Score: 100
Joined: 2/5/2004
Last Login: 5/20/2013
From: Ankara, TURKEY
Status: offline
Here is the photo of rear mounted magnet on a G38 Zenoah.

Regards

Zafer



Attachments
Click to see fullsize image.
Click for fullsize


Hide Signatures

(in reply to Zafer)
       Post #: 15

RE: How to make a prop hub with magnet - 3/4/2005 12:17 PM   
KenLambert



Posts: 832
Score: 155
Joined: 12/19/2001
Last Login: 5/22/2013
From: Livingston, TX, USA
Status: offline 		you do not have to adjust the magnet if it is put in the correct place for timeing to start with

The ignition in your photo looks like one of the older 3w jmo .


_____________________________

website
www.lambertsrc.com

Hide Signatures

(in reply to Zafer)
       Post #: 16

RE: How to make a prop hub with magnet - 3/4/2005 6:28 PM   
Hobbsy



Posts: 14566
Score: 650
Joined: 12/2/2001
Last Login: 5/22/2013
From: Colonial Beach, VA, USA
Status: offline 		This is my OPS 30 Maxi that I converted to gasoline for a while, it didn't make a happy gasoline engine.

Attachments
Click to see fullsize image.
Click for fullsize


_____________________________

A young man knows the rules and an old man knows the exceptions.

Club Saito member #5

Hide Signatures

(in reply to KenLambert)
       Post #: 17

RE: How to make a prop hub with magnet - 3/4/2005 7:01 PM   
Volfy



Posts: 3228
Score: 100
Joined: 1/4/2002
Last Login: 1/30/2009
From: Houston, TX, USA
Status: offline 		FYI, CH also has a smaller 1/8" diameter magnet. It came in handy on a couple of projects I did.

_____________________________

Si vis pacem, para bellum.

Hide Signatures

(in reply to Hobbsy)
       Post #: 18

RE: How to make a prop hub with magnet - 3/4/2005 8:06 PM   
Rupurt



Posts: 694
Score: 100
Joined: 4/9/2004
Last Login: 8/24/2011
From: Cape TownN/A, SOUTH AFRICA
Status: offline 		I made this hub so I could use tru-turn type spinners, it's in two parts because it was supposed to go on with the orginal ignition but when I broke the coil mount off I decided to go with a cd ignition.

Attachments
Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize


_____________________________

Somethings are stranger than fishin

Hide Signatures

(in reply to Volfy)
       Post #: 19

RE: How to make a prop hub with magnet - 3/4/2005 8:16 PM   
Rupurt



Posts: 694
Score: 100
Joined: 4/9/2004
Last Login: 8/24/2011
From: Cape TownN/A, SOUTH AFRICA
Status: offline 		Here's a shot with the spinner.

Attachments
Click to see fullsize image.
Click for fullsize


_____________________________

Somethings are stranger than fishin

Hide Signatures

(in reply to Rupurt)
       Post #: 20

Page:   [1]
All Forums >> Glow Engines, Gas Engines, Fuel &amp; Mfg Support Forums >> Engine Conversions >> How to make a prop hub with magnet
Page: [1]





Jump to:


 
Google 



Search | Marketplace | Event Calendar | Local Clubs | Magazine | Product Ratings | New Products | Discussion Forums

Photo Gallery | Instructor Search | Field|Track|Marina Search

Advertisers | Hobby Vendor Resources | Rate Manufacturers | Sign In/Sign Up

SITE MAP!   : :   FORUM RULES

RC Universe is a service of Internet Brands, Inc. Copyright © 2001-2013.

Charities we support that also need your help
Yorkie Rescue | Humane Society | ASPCA | Crohn's-Colitis America


1.734RCU1