I am planning on removing the top of the sea chest so that I can reach in and do the cleaning. However and here's the problem,  the top of the sea chest is just below the water level outside the boat.

After ten years of exceptional service, the center seam of our flybridge soft top finally yielded in the 45 knots of Tropical Storm Cindy. The rest of the top appears to be in good condition, and I am thinking that a good canvas shop can reinforce this seam and put it back together.

When OpenSCAD is run on the Ubuntu desktop the File menu appears at the top of the screen. From here I can export to STL. However, when I run OpenSCAD over x-windows I don't get the top menu and the only way I export to STL is to enable the editor pane, where there is button. I would rather not have the editor window open as I'm using an external editor.

Severely increasing phi_n means a severe increase in faces: phi_n=50; function foobar(phi) = 2+cos(phi); dphi=360/phi_n; for(phi=[0:dphi:360-dphi]) { curr=[foobar(phi)*cos(phi),foobar(phi)*sin(phi),5]; //current next=[foobar(phi+dphi)*cos(phi+dphi),foobar(phi+dphi)*sin(phi+dphi),5]; bottom=[0,0,0]; top=[0,0,10]; polyhedron( points=[bottom,curr,next,top

In an illustration of a car, why must the motor hood have a thickness instead of being just the top hood surface? Another non-manifold object.

On Tue, Mar 27, 2018, 12:45 PM KM6VV wrote: > I'm designing a steam engine eccentric rod, and I want a tapered cylinder > (which I have) that has also been flattened on the top and the bottom. How > do I add the flats on top of the taper? > > Thanks!

But when trying to export > it you get an > > UI-ERROR: Current top level object is empty. > > So, does it make sense in terms of 2D export to enforce something like a 2D > manifoldness?

= .7) translate([10,10,0]) square(10); linear_extrude(height = 5,scale = .7) translate([20,20,0]) square(10); translate ([35,35,0]) linear_extrude(height = 5,center=true,scale = .7) square(10,center=true); The first linear_extrude gives me a figure at x0/y0 that has vertical sides, and the other sides are scaled, becoming smaller at the top

I bought two pieces of Masonite, put the model on top, traced a line around it, then cut that out of the top piece with a jigsaw.  The rooms are easily removed.  This allows one to take a single room out to work with it separately, or to allow photography that wouldn't be easy with the model assembled.

When an intersection returns more than one geometry, each of those geometries must be considered as one intersection The interlocking is made by splitting each intersection in 2 (top and bottom) And subtract all top to X slices and all bottom to Y slices.