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Re: Minibot Motor Press Fit
A simple way to modify the Tetrix gear box is to machine a bushing out of aluminum. Drill a hole the same size as the shaft thru the bushing and bore a hole slightly smaller than the O.D of the 25 tooth gear on the 25/10 gear on the bottom and a hole the slightly smaller on the top than the OD of the 10 tooth gear on the 26/10 gear and press the gears into the bushing. Press the gear into the bushing. This eliminates soldering and you should be able make as many as you want fairly quickly. Toss the 30/15 gear and happy miniboting.(is that a word?) By the way I found some very scary metal shavings in the gearboxes when I took them apart.
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