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General control line discussion => Open Forum => Topic started by: Cody bishop on July 22, 2018, 05:54:33 AM
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I have tried to use clothe hinges a few times and they are always brittle how do you guys put them on
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Cody,I have used the cloth hinges that Tom Morris sells and they work well, one model is between 12-15 years old and they are still flexable, also used them on lots of other models, ZI like'm a lot..
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I CA them on but on put CA on the cloth that touches wood. Loose as a Goose.
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I use Dacron hinges cut from material I buy from Aircraft Spruce. I use dope, either Nitrate or Butyrate. Apply 3 good coats of dope to the balsa and then 3 more coats of dope over the hinges. If they wrinkle, pass a heat gun over them easily and they will shrink down and become almost invisible when you paint over them.
Usually I apply straight dope (not thinned) for the first coat over the bare balsa, followed by at least two or three more coats of a 50/50 mixture of dope and thinner before I try to attach the hinges.
Mike
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I use Dacron hinges cut from material I buy from Aircraft Spruce. I use dope, either Nitrate or Butyrate. Apply 3 good coats of dope to the balsa and then 3 more coats of dope over the hinges. If they wrinkle, pass a heat gun over them easily and they will shrink down and become almost invisible when you paint over them.
Usually I apply straight dope (not thinned) for the first coat over the bare balsa, followed by at least two or three more coats of a 50/50 mixture of dope and thinner before I try to attach the hinges.
Mike
How long do you wait between coats?
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How about hinges made out of Taffeta.
They should also be easy to apply with the above mentioned methods.
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Dacron is the material that I could not remember, but that is it, just like Mike G said to apply...
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How long do you wait between coats?
Hi Cody,
I don't know that there is any specified time period to wait because the dope dries really quick. I usually put a coat on, come back in an hour and put another one on,,etc etc,
I am doing other things in the shop while waiting for the dope to dry. I can usually get all the hinges doped down in an afternoon.
Mike
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I have used Goldberg Nylon reinforcement material for many many years! I cut strips of about 1.5 to 2" in length and bend them in half then clip these in a spring cloths pin so that they take a set. I apply these with alternating sets of three across the surfaces as indicated using pre-glued spots with old Ambroid or Sigment glues. I have had these in continuous service for over thirty years in some cases! In years past say 1967 through 1974 of so I used this method to hinge Goodyear Scale racers with no failures in any ever.
Phil Spillman