no YOU CANT !
because of the weakness of 2D / 3D sketch in solidworks you cant do this
unfortunately 2d/3d sketch even in solidworks 2016 is so weak !
you cant move and snap 3d sketch (the cool part is that its available in 2D sketch)
you cant use segment with spline !
you cant scale sketch by percent or by reference - like fitting group of lines and curves in square (scale is fully unavailable in 3D sketch)
you cant rotate 3D sketch with reference or by snap !
Of course the 2D move sketch tool is not available for 3D sketch but... the 3D sketch triad can be very helpful when translating and rotating 3D sketches. The tools>sketch tools>move as well as tools>sketch tools>rotate are also available. The sketch triad can be evoked by preselecting selecting the 3D sketch geometry (or vertices) you want to move and then RMB "Show sketch Triad".
its very difficult and time consuming to move sketch to 3D desired point in Solidworks .in autocad its possible to move rotate and scale any sketch and line simultaneously to 3D reference point by just one click .
its also impossible to mirror 3D Sketch
OK, here's a workaround which is easier to do than to explain. Tested and works in SW2018.
Say you have a chain of sketch entities, and you want to copy or move it 100 units in Z.
Draw a construction line from one end of the chain 100 long in Z direction.
Select the chain of entities using RMB/Select chain (which will omit the construction line)
Hold down Control key, then pick up the selected chain by the endpoint adjoining the construction line.
Still holding Control, drag the copy of the chain and drop it with the endpoint positioned so it snaps to the other end of the construction line.
If you wanted to move it rather than copy it, go back and delete the original chain (and the construction line)
This is useful to duplicate a sweep path in a specified direction to act as a guide curve, in order to control twist in ways which the built-in twist controls do not permit
Or use move tool?
Thanks a bunch, Krzysztof!
Perhaps under the influence of Mark B's answer above, I started from the assumption that the basic triad he mentions was probably the only viable option for 3D sketch entity movement.
I had also wrongly assumed that the (newfangled!) separate "Move", "Copy" and "Rotate" tools were just stripped down versions of those capabilities under Tools/Sketch Tools/Modify.*
Clearly they are not , so I'm hoping they address other limitations of the ancient tool.
* I further wrongly assumed that, since "Modify" is greyed out when editing a 3D sketch, there was nowhere else to look.
ON EDIT:The method I described does permit snapping a point on the item being dragged to a destination point.
As far as I can see, this is not possible with "Move"; it seems to me one would have to measure the relative coordinates of the start and finish point and type them in?
(In which case rounding errors would presumably prevent the moved elements being contiguous with, say, the end of the construction line mentioned in my method)
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