I have seen some pretty slick arrangements using small 6000 series ball
bearings on bolts. The tubing in the one case sat corners vertical and four
bolts with bearings supported the tube running horizontally
Randy, I'm having trouble visualizing this interesting arrangement.
Can you explain more, or point to any sketch etc???
Thanks!

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Regards, Terry King ...In The Woods In Vermont

The one who Dies With The Most Parts LOSES!! What do you need?