Cox Engines Forum
You are not logged in! Please login or register! Guests are limited to posting in the "General Questions (Guest Posting Allowed)" section only. Becoming a member is fast, easy and FREE!


Log in

I forgot my password

Search
 
 

Display results as :
 


Rechercher Advanced Search

Latest topics
» WTB driven gear(s)
by dckrsn Today at 6:48 pm

» Recent engine acquisitions
by ukanduit Today at 6:28 pm

» Laying off building planes for a while.
by GallopingGhostler Today at 5:34 pm

» Cox "RR-2"
by Admin Today at 4:04 pm

» Hey BOB, there's a market for your Enya's
by rsv1cox Today at 6:57 am

» Cox P-40 Parts
by crankbndr Yesterday at 7:05 pm

» 5 Sure Start Engine Radial
by getback Yesterday at 10:04 am

» Cox .01 /.02 /.05 Engines & Mods / Nano Speed Planes
by 1/2A Nut Fri Oct 19, 2018 9:32 pm

» High Performance Cox tools by Bob Oge
by roddie Fri Oct 19, 2018 9:08 pm

» Shuriken cylinder with piston for sale
by ukanduit Fri Oct 19, 2018 3:07 pm

Cox Engine of The Month
October-2018
Mudhen's

"Prototype T.D. .010 c.1960"



PAST WINNERS
Speed Contest 2018
CEF Traveling Engine

Win This Engine!
The Traveling Prop
Gallery


World of Aviation

Button bellcrank

Go down

Button bellcrank

Post  trebor3170 on Fri Sep 14, 2018 7:43 pm

Ok, so I signed up a little while ago, and have been more or less just lurking about since. It seems I can find answers to any questions I have just by doing a search. But, I have noticed mention about button bellcranks quite a few times, and I think I've figured out the basic concept, you don't use lead outs, instead, the control lines are connected directly to the bell crank with a "loop and button" arrangement. So, my question is, how do you guys go about making the "buttons" and determining the loop size on the control lines?  Huh...  Thank you in advance.
avatar
trebor3170
Moderate Poster
Moderate Poster

Posts : 11
Join date : 2018-07-13
Age : 60
Location : Eastern Shore, MD

View user profile

Back to top Go down

Re: Button bellcrank

Post  Ken Cook on Sat Sep 15, 2018 5:51 am

I use button bell cranks all the time. I make my own buttons out of brass on a lathe but I used to do so by using 4-40 blind nuts turned upside down. I would chuck up the blind nut on a screw in the drill press using a jam nut against it and file off the nubs that crush into the wood. Use small screws through the bottom of the bellcrank into the upside down blind nut . Solder or use loc-tite on the assembly. Another method is to use a eyelet for your loop and use a screw and washer to hold it to the bellcrank. I can provide pictures of some if you would like for clarification. Nothing special about making the lines other than when you terminate steel lines, make a double loop when making line sets under .018" vs a single. Spectra lines only need one loop.
avatar
Ken Cook
Top Poster
Top Poster

Posts : 3220
Join date : 2012-03-27
Location : pennsylvania

View user profile

Back to top Go down

Re: Button bellcrank

Post  trebor3170 on Sat Sep 15, 2018 11:23 am

Thanks Ken, sounds simple enough, I guess I was over complicating things in my mind.
avatar
trebor3170
Moderate Poster
Moderate Poster

Posts : 11
Join date : 2018-07-13
Age : 60
Location : Eastern Shore, MD

View user profile

Back to top Go down

Re: Button bellcrank

Post  Sponsored content


Sponsored content


Back to top Go down

Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum