Ben Supnik Wrote:Rigid connection - this isn't a "joint" on wikipedia. 0 degrees of freedom, e.g. the two parts are connected in exactly one way. Like the prismatic connection, you need more orientation information than you can get from two points.
HELP: I'm having trouble thinking of a -true- rigid connection off-hand. My original idea was the old (early 80s) 2-prong 4.5 plug into the 2x2 light brick. But that's sort of a prismatic joint - you can slide the plug in and out gradually. Surely there must be something that 'just snaps'?
Windows (like this train windscreen part pair)?