https://forums.autodesk.com/t5/autocad-forum/circle-and-half-moon-with-offset-command/m-p/6233107#M287414 <P>Neither of the parts of those "half-moons" [they're really "crescent" moons*] are concentric with the middle Circle, so Offset is not going to do it for you, at least not without some other shenanigans.</P> <P>&nbsp;</P> <P>If the inside and outside edges of the crescent moon shapes are <EM>of the same radius</EM> [it's hard to tell just visually whether they should be], I would&nbsp;draw a 30-radius Circle, Copy it 15 units to the left or right, and Trim away the&nbsp;unwanted part of each using the other as the Trim boundary.&nbsp; [The 35 dimension may not come out exactly that -- if you need that rather than equal radii, it's more complicated, but doable.&nbsp; Draw a temporary&nbsp;Line from top to bottom quadrant points, Move it over 5 units and use it as a boundary to Trim the Circle, then Move it 20 units and draw the inner Arc as a 3-point between the ends of the outer Arc and the midpoint of the Line.]&nbsp; Mirror the resulting Arcs&nbsp;across the points, Move the new ones 10 units over, and draw the center Circle using MTP/M2P Object Snap, between the <EM>top</EM> point of one moon and the <EM>bottom</EM> point of the other, for its center.</P> <P>&nbsp;</P> <P>*&nbsp;[To be <EM>truly accurate</EM> for a view of the moon, the inner edge would be an Ellipse rather than an Arc, and the outer Arc would not extend beyond its top and bottom quadrant points.]</P> Thu, 24 Mar 2016 17:43:13 GMT Kent1Cooper 2016-03-24T17:43:13Z https://forums.autodesk.com/t5/autocad-forum/circle-and-half-moon-with-offset-command/m-p/6232656#M287411 <P>Does anybody knows how to do this?&nbsp;<IMG src="https://forums.autodesk.com/t5/image/serverpage/image-id/226921iCA1C4A6587FB828B/image-size/medium?v=lz-1&amp;px=-1" border="0" alt="offset.JPG" title="offset.JPG" /></P><P>&nbsp;</P> Thu, 24 Mar 2016 14:43:43 GMT https://forums.autodesk.com/t5/autocad-forum/circle-and-half-moon-with-offset-command/m-p/6232656#M287411 Anonymous 2016-03-24T14:43:43Z https://forums.autodesk.com/t5/autocad-forum/circle-and-half-moon-with-offset-command/m-p/6232668#M287412 Will you please explain further? Thu, 24 Mar 2016 14:49:23 GMT https://forums.autodesk.com/t5/autocad-forum/circle-and-half-moon-with-offset-command/m-p/6232668#M287412 tmccar 2016-03-24T14:49:23Z https://forums.autodesk.com/t5/autocad-forum/circle-and-half-moon-with-offset-command/m-p/6232677#M287413 First, i need draw a circle, and from a circle whit option Offset draw a half moon. Thu, 24 Mar 2016 14:55:05 GMT https://forums.autodesk.com/t5/autocad-forum/circle-and-half-moon-with-offset-command/m-p/6232677#M287413 Anonymous 2016-03-24T14:55:05Z https://forums.autodesk.com/t5/autocad-forum/circle-and-half-moon-with-offset-command/m-p/6233107#M287414 <P>Neither of the parts of those "half-moons" [they're really "crescent" moons*] are concentric with the middle Circle, so Offset is not going to do it for you, at least not without some other shenanigans.</P> <P>&nbsp;</P> <P>If the inside and outside edges of the crescent moon shapes are <EM>of the same radius</EM> [it's hard to tell just visually whether they should be], I would&nbsp;draw a 30-radius Circle, Copy it 15 units to the left or right, and Trim away the&nbsp;unwanted part of each using the other as the Trim boundary.&nbsp; [The 35 dimension may not come out exactly that -- if you need that rather than equal radii, it's more complicated, but doable.&nbsp; Draw a temporary&nbsp;Line from top to bottom quadrant points, Move it over 5 units and use it as a boundary to Trim the Circle, then Move it 20 units and draw the inner Arc as a 3-point between the ends of the outer Arc and the midpoint of the Line.]&nbsp; Mirror the resulting Arcs&nbsp;across the points, Move the new ones 10 units over, and draw the center Circle using MTP/M2P Object Snap, between the <EM>top</EM> point of one moon and the <EM>bottom</EM> point of the other, for its center.</P> <P>&nbsp;</P> <P>*&nbsp;[To be <EM>truly accurate</EM> for a view of the moon, the inner edge would be an Ellipse rather than an Arc, and the outer Arc would not extend beyond its top and bottom quadrant points.]</P> Thu, 24 Mar 2016 17:43:13 GMT https://forums.autodesk.com/t5/autocad-forum/circle-and-half-moon-with-offset-command/m-p/6233107#M287414 Kent1Cooper 2016-03-24T17:43:13Z https://forums.autodesk.com/t5/autocad-forum/circle-and-half-moon-with-offset-command/m-p/6235792#M287415 <P>Turn on your sound.</P> <P>&nbsp;</P> <P>&nbsp;</P> <IFRAME width="640" height="650" src="https://screencast.autodesk.com/Embed/Timeline/3e292c95-128a-438f-858a-d073ee439190" frameborder="0" allowfullscreen="" webkitallowfullscreen=""></IFRAME> Sat, 26 Mar 2016 13:05:57 GMT https://forums.autodesk.com/t5/autocad-forum/circle-and-half-moon-with-offset-command/m-p/6235792#M287415 JDMather 2016-03-26T13:05:57Z https://forums.autodesk.com/t5/autocad-forum/circle-and-half-moon-with-offset-command/m-p/6241524#M287416 <P>Thank you very much for the answer ! <span class="lia-unicode-emoji" title=":slightly_smiling_face:">🙂</span>&nbsp;</P> Wed, 30 Mar 2016 13:23:49 GMT https://forums.autodesk.com/t5/autocad-forum/circle-and-half-moon-with-offset-command/m-p/6241524#M287416 Anonymous 2016-03-30T13:23:49Z