cruzersoul Posted April 30, 2009 Share Posted April 30, 2009 Ok I am very new to AutoCAD. I am using AutoCAD 2007 and I have a question about 3d modeling. I need to know how to draw a cylinder at a specific angle. Any help with this will be greatly appreciated. -Cruzersoul- Quote Link to comment Share on other sites More sharing options...
ReMark Posted April 30, 2009 Share Posted April 30, 2009 You could draw the cylinder vertically then rotate it into position or you could change the orientation of your UCS and then draw the cylinder. Quote Link to comment Share on other sites More sharing options...
Patrick Hughes Posted April 30, 2009 Share Posted April 30, 2009 When working in 3D modeling always remember AutoCAD will construct solids based on the current UCS. So, first make certain your UCS icon is on so you can see what plane you are working in. Now you will want to modify the UCS so that when you either construct the cylinder (or extrude a circle) it will be at the angle you want. You will rotate the x or the y axis. Remember to set the UCS back to WCS when you are done. The other option is to create your cylinder and then rotate it into position Quote Link to comment Share on other sites More sharing options...
cruzersoul Posted April 30, 2009 Author Share Posted April 30, 2009 Ok i know how to change my UCS but I have only been using cad for about 2 weeks and i am already trying to draw 3d objects which I think is considerably harder that 2d. Could you go into a little more detail on how to draw the cylinder at a specific angle. Thanks -Cruzersoul- Quote Link to comment Share on other sites More sharing options...
Patrick Hughes Posted April 30, 2009 Share Posted April 30, 2009 Well I thought we did! Make sure you are viewing your model in an isometric view, maybe SE view. Create a cylinder and you will see it rising vertically. Now Type UCS, then X, then for example 20 (to rotate about the x-axis 20 degrees) Create another cylinder and you will see it rising vertically as well as tipped towards you by 20 degrees. It takes a little prctice and requires some experimentation. Quote Link to comment Share on other sites More sharing options...
Patrick Hughes Posted April 30, 2009 Share Posted April 30, 2009 Hmm, I just thought of something. If you look at my avatar Quote Link to comment Share on other sites More sharing options...
Patrick Hughes Posted April 30, 2009 Share Posted April 30, 2009 One more thing, search here or google "right hand rule" to understand how rotation is applied. Quote Link to comment Share on other sites More sharing options...
JD Mather Posted April 30, 2009 Share Posted April 30, 2009 Another method - simply draw a rectangle with one side at the desired angle (and of course a parallel side and 2 perpendicular sides) the height of the cylinder and the radius of the cylinder. Then simply Revolve the rectangle to create the cylinder. Do fooling with UCS or rotating of part afterwords required (unless it is actually tilted in two directions). Quote Link to comment Share on other sites More sharing options...
shift1313 Posted April 30, 2009 Share Posted April 30, 2009 can you give a little better explanation of what you are drawing. I can interpret that a few ways. Here is a screen shot with the same base and path but two methods of creation. The circle is in the xy plane. The line was drawn at a 45degree angle in the XZ plane. The cylinder just to the right was created by typing EXTRUDE, then selecting the circle. If you watch the command prompts it will ask you for a distance or a Path, press P for path and select the line. The third image was made with the SWEEP command. Type SWEEP, select the circle, press enter, select the path and voila. The sweep command could also produce the same thing as the second image by altering the Alignment option. are either of these what you are trying to do? Quote Link to comment Share on other sites More sharing options...
cruzersoul Posted April 30, 2009 Author Share Posted April 30, 2009 Thank you shift that is exactly how i want to draw the cylinder. Now i just have to implement that in my drawing:huh: Quote Link to comment Share on other sites More sharing options...
MaxwellEdison Posted April 30, 2009 Share Posted April 30, 2009 To alleviate future confusion, the second figure in Shift's attachment would normally be referred to as a skewed, sheared, or elliptical cylinder (opinions may vary). Shift's third example is the meaning most commonly taken when asked to create a cylinder at an angle. This is why we (generally) prefer to deal with pictures, not words. Much smaller chance of our meaning not being received properly. Glad to see you got sorted out Quote Link to comment Share on other sites More sharing options...
shift1313 Posted May 1, 2009 Share Posted May 1, 2009 so which one was it:) Quote Link to comment Share on other sites More sharing options...
MaxwellEdison Posted May 1, 2009 Share Posted May 1, 2009 I believe it was door #2 Quote Link to comment Share on other sites More sharing options...
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