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Trying to do a slot inside a frame
andrew_kennedy
Member Posts: 3 ✭
Okay so I have a very basic issue but i'm rather new to this software, I wish to do a frame, the sketch (lets assume is top plane) is as such: 2 rectangles one inside the other, the first extrude makes it all expand, lets say .05 the second extrude expands only the perimeter between the two, lets say .1, then I have a rectangle very thin - but halfway between the widths of the two rectangles which comprise the frame borders on the Front Plane. I wish to subtract to a certain depth out of the middle of the model, however when I draw it on the front plane, it stays directly in the middle of the model and I cannot reposition it toward the edge or offset it (it only moves on the front plane) so I want to subtract so there is as slot visible on one side but not on the other - if I try a blind extrude it will only take 1 side out to the slot, but only starting from the middle, if I do it symmetric I will end up exposing both sides. Is there a simpler way to subtract a slot out of a frame or other object with only 1 extrude from an opening to a specified depth?
0
Answers
Glad you're trying out the software. There are many ways to do this, but I think the best one for your case may be to just change the plane you're sketching on.
By using the 'mid plane' option of the 'Plane' tool you can create a plane between the inner and outer wall of your frame, and then sketch on that plane.
https://cad.onshape.com/help/Content/cplane.htm
Then, your extrude operation will be simple:
Feel free to copy this document to see how I did this:
https://cad.onshape.com/documents/bb2e2c93111e81556752568c/w/b714be4654a17696d23cf990/e/26eaedec6828f4e99546d3c9
I've included another tab in the document called 'more complicated' that answers your question in a different way. Instead of changing the sketch plane, I used the 'up-to-face' and 'offset distance' options in extrude to cut an outer slot from a sketch on the front plane.