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General control line discussion => Open Forum => Topic started by: Mike Griffin on February 06, 2017, 12:23:57 PM

Title: VIDEO How to extend a pushrod
Post by: Mike Griffin on February 06, 2017, 12:23:57 PM
Just a little hint in case you ever struggled with this.

Mike
https://youtu.be/pW1uOMAWCWM
Title: Re: VIDEO How to extend a pushrod
Post by: Motorman on February 06, 2017, 02:09:11 PM
blank
Title: Re: VIDEO How to extend a pushrod
Post by: Mike Griffin on February 06, 2017, 03:58:55 PM
You can mount the ball link on the bellcrank, do your sheeting then thread the push rod through the hole and into the ball link. It takes patience but, I've done it a few times.

MM

Yes you can.  I said in the video there was more than one way to do things like this,

Mike
Title: Re: VIDEO How to extend a pushrod
Post by: peabody on February 07, 2017, 05:10:35 AM
Thanks Mike....
Title: Re: VIDEO How to extend a pushrod
Post by: Mike Griffin on February 07, 2017, 07:00:33 AM
You are welcome Rich.

Mike
Title: Re: VIDEO How to extend a pushrod
Post by: Ron Cribbs on February 07, 2017, 09:59:27 PM
Great idea Mike, thanks for that video. Another good thing about your method is you can lengthen or shorten the pushrod to correct the rod length for miscalculations in up/down throw.

Ron

Title: Re: VIDEO How to extend a pushrod
Post by: Don Coe on February 08, 2017, 08:15:28 AM
Mike - Another great "how to" video.  Thanks   H^^
Title: Re: VIDEO How to extend a pushrod
Post by: john e. holliday on February 10, 2017, 09:10:24 PM
Just watched and listened to your great video on the lap top.  Still can't get sound on main computer.  On another post some one mentioned that the glue would build pressure in the tube as you slide the rod into place.  I myself drill a very small hole a little ways past where the glue will be.  This lets the pressure of air in the tube escape.  If a person is worried about the carbon splitting from the drilling of a small hole, a wrap of glass cloth and epoxy will take care of that or slide another piece of tubing over the rod before gluing the rod in place.  My thoughts. H^^
Title: Re: VIDEO How to extend a pushrod
Post by: RknRusty on February 10, 2017, 10:16:31 PM
I just block each end with weights and add tape over the tube for security. like others, I use a 1/4" aluminum collar at each end. I wish the common hobby suppliers, Great Planes, Dubro, etc., made LH threaded 4-40 solder couplers in addition to the regular RH ones so I can adjust the flap-elevator by turning the rod. I know there are some short rods like that but my LHS doesn't stock them.

Btw, Mike and others, do you guys tap your ball links, or just force thread them with the threaded end of the pushrod? I usually pre-tap them.
Rusty
Title: Re: VIDEO How to extend a pushrod
Post by: Mike Griffin on February 11, 2017, 07:02:57 PM
Rusty I just screw them over the threads on the connector.

Mike