RC India

RC Models => Boats => Topic started by: roopeshkrishna on December 29, 2011, 02:11:42 PM



Title: make a motor coupling with ease...
Post by: roopeshkrishna on December 29, 2011, 02:11:42 PM
Friends..one of the great worry of a boat modeller is about the coupling between motor and drive shafts..even i was in trouble to find a good easy solution for a coupling..we can buy a coupling from hobby store..is far expensive..and can make one from a lathe..but must wait for their favor..especially for a tiny minute work like this...so i found a simple effective solution..and tried this year in ship model competitions..proved very successful..we can make any coupling to any motors...with ease..in minutes...

collect some bicycle spoke nipples, in various sizes..its very inexpensive..but strong..and yes non rusty as it all are made of brass...

collect some stain less steel bicycle spokes in various sizes..also inexpensive...


Title: Re: make a motor coupling with ease...
Post by: roopeshkrishna on December 29, 2011, 02:13:55 PM
now i am planing to fix this EP 400 motor to a patrol boat...so drive a nipple with hammer, on to the shaft while placing the back of the shaft on a bench vise...
after making sure it is straight..apply some industrial cyano glue in to it...


Title: Re: make a motor coupling with ease...
Post by: roopeshkrishna on December 29, 2011, 02:15:42 PM
cut a piece of brass rod, in to appropriate length, and make sure it is tight with the driven nipple...


Title: Re: make a motor coupling with ease...
Post by: roopeshkrishna on December 29, 2011, 02:17:03 PM
apply cyano to it...
place a second nipple in same size to the opposite side...


Title: Re: make a motor coupling with ease...
Post by: roopeshkrishna on December 29, 2011, 02:18:45 PM
now wait to dry...
can see how simpleit is...
we can drive in a spoke, in to the thread of the nipple as shown..make sure thread is ok...


Title: Re: make a motor coupling with ease...
Post by: roopeshkrishna on December 29, 2011, 02:20:27 PM
now drill a hole on nipple as shown..a 2mm bit is good, for this tiny shaft...
take a third nipple and thread to the desired spoke as shown...


Title: Re: make a motor coupling with ease...
Post by: roopeshkrishna on December 29, 2011, 02:21:48 PM
start to thread in the spoke in to the motor...

and tight the counter nipple with nose pliers...drop some cyano...


Title: Re: make a motor coupling with ease...
Post by: roopeshkrishna on December 29, 2011, 02:22:52 PM
now its ok..
time to fix on the craft....


Title: Re: make a motor coupling with ease...
Post by: roopeshkrishna on December 29, 2011, 02:24:23 PM
we can make any size of coupling from bicycle nipples..can drill a hole along, so can lock it with a tiny bolt...firm...


Title: Re: make a motor coupling with ease...
Post by: roopeshkrishna on December 29, 2011, 02:25:31 PM
as no ballpoint tube or silicon tubes are used..no issues with heating up.... :-)) :-)) :-))


Title: Re: make a motor coupling with ease...
Post by: rajeshbhanushali123 on December 29, 2011, 02:44:46 PM
sir you are

 :bow: :bow: :bow: :bow: :bow: :bow:

 :salute: :salute: :salute:


Title: Re: make a motor coupling with ease...
Post by: sanjayrai55 on December 30, 2011, 06:57:56 AM
Another stroke of brilliance from Roopesh!  :hatsoff: ;) ;D

Hope the radio is working well

A Very Happy New Year to you!  :bow: ;D ;D ;D


Title: Re: make a motor coupling with ease...
Post by: MohitJindal on May 16, 2013, 07:17:45 PM
i want 8mm shaft coupling. Any seller ?


Title: Re: make a motor coupling with ease...
Post by: pline on May 20, 2013, 04:04:20 PM
Sir i have quoted you.
please check your email.
Regards
Nilanjan paul

www.pline.in


Title: Re: make a motor coupling with ease...
Post by: gaurang.1972 on December 17, 2013, 10:14:26 AM
sir i want 4mm motor to 3mm shaft coupling for boat


Title: Re: make a motor coupling with ease...
Post by: rsalman on December 21, 2013, 01:15:48 PM
Excellent and simple way , great roopesh