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n45bm(at)yahoo.com
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 Posted: Sat Sep 29, 2012 8:51 am Post subject: Main gear alignment |
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Hi guys,
For those interested in the method I used for aligning the main gear, I submit these pics. Two 1/2" diameter aluminum rods were inserted into the axle sockets such that they met in the middle of the fuselage and were aligned with each other. This told me that the wheels were parallel with each other. Then, deciding how much toe-in I wanted, and using the magical math of trigonometry, I offset one gear to the length of the short leg of the triangle. The gear tube was drilled and the other gear was turned so that the 1/2" rod ends were together again, and the other gear leg was then drilled. It's easier done than explained. More than one way to skin a cat. Hope this helps.
Bernardo
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n45bm(at)yahoo.com
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| Posted: Sat Sep 29, 2012 9:05 am Post subject: Main gear alignment |
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Hi guys,
Here's my method for aligning the main gear. Of course, it helps to have a machinist buddy to make my drilling jig(s).
First, two 1/2" aluminum tubes are inserted in the axles so that they meet in the middle. That tells me that the wheels are parallel with the fuselage center line. Then using trigonometry to determine and rotate the gear to match the short leg of the triangle, twist one gear leg to the desired toe-in (I used 1 1/2 degrees toe-in). The gear socket is then drilled, preferably using a drill jig. Once that's done, twist the other gear leg so that the end of the aluminum rods again meet and drill the second leg. Easy peachy, lemon squeezy.
Hope this helps.
Bernardo
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