.) // Remembering that sine is opposite over hypotenuse, the // y-distance between the start and the end (the length of // the vertical bar) is r*sin(a). poly11end = [-r*cos(a), -r*sin(a)]; // Poly12 is the reverse curve (and the connection between // poly11 and poly12 is the straight segment.

OpenSCAD obviously knows the current [x, y, z] and it seems like it should be simple for it to make that information available to the program. -- Sent from: http://forum.openscad.org/

Ashore, this would be called a 50 amp service (most houses probably have a 100 or 200 amp, 240 volt service) When we put a Y-cord adapator on the shore end of the 50 amp 240V power cord, we can plug the two legs of the Y into two separate 30 amp 120 volt outlets - this should (unless we hit two outlets on the same phase) give us 30 amps at 240 V (a 30 amp/240V

E.g. concave_hull() { hull() for(x = [-10,10], y = [-10,10], z = [0, 20]) translate([x,y, z]) sphere(2); translate([0, 0, 18]) sphere(5); } Would make cube with rounded corners with a depression in the top that had a rounded bottom.

transformation > > // source: Mathematical Methods for Scientists and Engineers - Donald A. > McQuarrie > > > > // x = r*cos(phi)*sin(theta) > > // y = r*sin(phi)*sin(theta) > > // z = r*cos(theta) > > // > > // 0 <= r < infinity > > // 0 <= theta <= Pi (180 degrees) > > // 0 <= phi <= 2*Pi (360 degrees) > > > > // *_sphere_degrees functions take angle

. // // Library to perform various transformations on an [x,y,z] point. // // Define the various transformation matrices. function matrix_rotate_x(a) = [ [ 1, 0, 0, 0 ], [ 0, cos(a), -sin(a), 0 ], [ 0, sin(a), cos(a), 0 ], [ 0, 0, 0, 1 ] ]; function matrix_rotate_y(a) = [ [ cos(a), 0,

It's one of the reasons why some people don't like plastic y-valves...the handles become brittle and can break off if very much force is needed to operate them.

30A is certainly less than 50A and 30A is all you should be able to adraw from EACH leg of 110VAC that you have attached via the "Y" cable. Actually, most circuit breakers are designed to trip at 80% of their rated load for constant loads. So, don't bank on more than 24A per 30A feed. The real concern is 220V vs 110V.

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