Not sure I understand, but if you create the small rod as a middle plane extrusion, then you can use the natives planes to add a constraint, to the center of the big rod, for example.
HIH JM
"Priorclavepetef" a écrit dans le message de news: snipped-for-privacy@mb-m16.aol.com...
Hi,
> I have a rod (100mm long, 10mm diameter), in this rod is a 4.1mm (perpendiculer
> to the 10mm diameter rod),through hole, 4mm from one end. there is a 7mm deep
> hole in the end of the 100mm rod for welding a 85mm long, 4mm diameter rod in
> place. I can concentrically mate the 4mm rod to the 4.1mm through hole and move
> the 4mm rod through this hole. What I want to do is add a constraint, to
> centrally locate the 4mm rod in this hole. Ie: I dont' want the 4mm rod to move
> and I want it centrally fixed to the 10mm diameter rod. I want this assembly to
> be able to move in an assembly too, so the fix constraint is no good. > Any ideas?
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