Model Boat Mayhem

Technical, Techniques, Hints, and Tips => Engineering Techniques and Materials. => Topic started by: loveboat on August 14, 2012, 09:31:17 am

Title: how to bend a flexi shaft
Post by: loveboat on August 14, 2012, 09:31:17 am
im doing a project at the min and have bought a 330mm flexi shaft and outer but i need to put a bend in it ,

my question is , is there a best way to do this without nackering it up

thanks lee
Title: Re: how to bend a flexi shaft
Post by: essex2visuvesi on August 14, 2012, 09:34:30 am
carefully  ;D

Seriously tho what's it made from? as different techniques need to be used for different materials
Title: Re: how to bend a flexi shaft
Post by: loveboat on August 14, 2012, 10:29:15 am
the outer is brass , this is a link to the one ive bought http://www.ebay.co.uk/itm/120762556275?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
Title: Re: how to bend a flexi shaft
Post by: Andyn on August 14, 2012, 10:37:48 am
Leave the shaft and ptfe liner in the tube and bend it with your hands :-))
Title: Re: how to bend a flexi shaft
Post by: loveboat on August 14, 2012, 10:42:08 am
its that simple then  :-))

cheers guys
Title: Re: how to bend a flexi shaft
Post by: Andyn on August 14, 2012, 11:06:22 am
It really is. Make sure you do leave the shaft in whenever bending the tube as otherwise you'll get kinks. Also make all bends as shallow as you can to reduce friction.
Title: Re: how to bend a flexi shaft
Post by: loveboat on August 14, 2012, 12:34:56 pm
cheers matey
Title: Re: how to bend a flexi shaft
Post by: Chuck Plains on April 15, 2014, 03:33:12 pm
Good info! Just as a plumber will use a bending spring to prevent a copper water pipe from kinking at a bend, it also prevents the internal diameter from reducing. Which is something even more necessary for a prop shaft!  O0

I'm about to try and make up a flexi shaft system for a foam flying wing. I came here looking for advice too and found LB's question helpful.
I'm not a boat builder yet, but maybe a flying boat could be on the cards.  ok2