I would like to try Robart Hinges. I've watched and read the video on how to do this on the "how to" section of RCU.
I bought a Robart Drill Jig to aid me in this.
I would like to hear from folks who have done this on things to avoid or any more helpful hints. I plan on using polyurethane glue as per the how to article.
One newbie question: I assume the drill jig is to aid in centering the holes. I only have a hand held drill. Does the drill jig also guide the drill so as to make the hole parallel to the wing line? My concern is the hole could get a little off when drilling it. This could cause the hinge to be up/down/left right when it's installed.
Thanks,
Mike
Memphis TN

I use a hand held drill bit when drilling holes for Robart hinges. Hobbico makes a nice set with handles or you can improvise with a plain drill bit. I agree with you in that it would be easy to drill a hole that is not perpendicular even with a hand drill. As far as glue, I have used "hinge" glue and wood glue "TiteBond" without problems.

Remember to apply a little Vaseline on the knuckle of the hinge and immediately after gluing (before it sets up), flex the control surface a few times to insure the hinges are aligned.

DaveB

The drill jig helps tremendously, but it is still helpful to have a center line drawn for guidance. Make sure you oil the pin part of the hinge, wipe off the excess, and try not to get the oil on the barbs. I drip a drop or two water in each hole, and try to keep gravity working for me, by tilting whatever I'm dribbling so I can get the water down in the hole deep. Then I use one drop of poly glue for the 1/8 hinge points, and 2 drops for the 1/4. I let the glue run into the holes for 5- 10 minutes, and may help smear it in their with a toothpick. Then I take a Q-tip, and spin it in the socket where the hinge knuckle will sit. Press in hinge points, wait to dry, and do the same thing with the control surface. Works great, and I rarley see the poly glue foam out around the hinges.

There is a very good tutorial video on this site detailing the installation of Robart hinges, starring none other than our own Minn Flier.

Andy