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04.03.2009, 12:10 PM
Alot of people do them differently which causes the challenge and it depends on the chassis...
Not all chassis use/need the extra piece of plastic for example...
Normally at least 3 3mm countersunk holes from the bottom of the chassis line up with the battery tay.
I normally hold the tray in place with servo tap and then drill a 2/2,5mm pilot hole into the tray from the bottom. Then gentle screw in the 3mm countersunk screws.
For good measure I then normally drill 2 3.5mms holes from the top in the middle of the tray through the whole chassis - I countersink the holes and the use a 4mm tap through the chassis. I then use a m4 countersink screw for extra protection.
I then line the bottom of the tray with claw side sticky back industrial velcro.
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