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Extruding cylinders in three different dimensions (by Thomas A)
I am new to this program and I am trying to learn how to extrude three perpendicular cylinders along the three axes. I have followed the first tutorial and learned some of the basic operations.
I try sketching a circle on each of the three planes. Then I extrude each of the circles perpendicularly to each their plane. However, they do not appear to render as solids. They just result in a whole bunch of lines and points, effectively making up three intersecting wireframe cubes with circles at their corners.
I attach a screenshot of it in isometric view. I simply cannot figure out what is going on here. How should I do this? I am clearly doing it very wrong.
I try sketching a circle on each of the three planes. Then I extrude each of the circles perpendicularly to each their plane. However, they do not appear to render as solids. They just result in a whole bunch of lines and points, effectively making up three intersecting wireframe cubes with circles at their corners.
I attach a screenshot of it in isometric view. I simply cannot figure out what is going on here. How should I do this? I am clearly doing it very wrong.
(no subject) (by Paul)
It's very hard to tell what you're trying to do from the screenshot. Only one planar sketch can be extruded at a time, and you should figure out why the first one fails before trying to do more.
I'm not sure, but it looks like your 2D sketches have squared with circles that overlap the square? That would should result in a "contour is self intersecting" message in red on the sketch, which is an indication that an extrusion will not work. But again, I can't tell because the image has so much going on at once.
I'm not sure, but it looks like your 2D sketches have squared with circles that overlap the square? That would should result in a "contour is self intersecting" message in red on the sketch, which is an indication that an extrusion will not work. But again, I can't tell because the image has so much going on at once.
(no subject) (by Thomas A)
I start from a new drawing and sketch a circle in the plane facing me by default. Then I extrude that circle to a cylinder. This seems to work fine.
Next, I rotate the drawing space and orient one of the perpendicular planes toward me. I use that function that orients the nearest plane towards me. Then I repeat the first step of drawing a circle and extruding it to a cylinder - now perpendicular to the first one.
This is where it starts going wrong. The newly extruded cylinder is only shown as a wireframe and the first cylinder gets a wireframe cylinder drawn next to it as if it is somehow also affected by the second extrusion. This surprises me, because I have only selected the second circle when I do the second extrusion.
The third step similarly makes things go even more wrong, creating these “ghosts” of the first objects.
Next, I rotate the drawing space and orient one of the perpendicular planes toward me. I use that function that orients the nearest plane towards me. Then I repeat the first step of drawing a circle and extruding it to a cylinder - now perpendicular to the first one.
This is where it starts going wrong. The newly extruded cylinder is only shown as a wireframe and the first cylinder gets a wireframe cylinder drawn next to it as if it is somehow also affected by the second extrusion. This surprises me, because I have only selected the second circle when I do the second extrusion.
The third step similarly makes things go even more wrong, creating these “ghosts” of the first objects.
(no subject) (by ruevs)
In my opinion (same as Paul's) the white lines forming the cube are the problem. They should be "construction" (use "Toggle Construction" or "G") - otherwise they make the sketches self intersecting and thus they can not form a solid when extruded.
(no subject) (by Thomas A)
I am clearly doing something wrong. I am wondering, just in basic steps, how would you go about extruding two cylinders perpendicular to each other?
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