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#1
Sat 05 February 2011, 06:15
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Drilling Gantry for cable chain support
I see that the cable chain support is bolted to the gantry tube. I can't find a plan detailing this. Is it necessary to use a clamp strip for this or can the thin beam walls support the weight?
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#2
Sat 05 February 2011, 07:31
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I drilled and tapped the gantry tube. The recommended minimum thread depth for 6 mm is around 4.7 mm and the thread depth in this case is around 3.1 mm. As long as you do not overtighten I think it will be fine.
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#3
Sat 05 February 2011, 09:11
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I used big self-tapping screws. Big blind rivets will also be okay. The wall is thick enough to carry that light load.
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