Ok. Before I throw my laptop across the room. What is the best way to make
a rail with a curve on the bottom? I tried drawing the three sides of the
rectangle in 2D then placed a 'spline by control points' curve on the
bottom, but I can never get all the lines to become one surface. I have
done this before, but I cant remember how.
The curve on the bottom of this CAD dresser is what I am trying to
I cannot for certain explain how to do it with TurboCad But with AutoCAD you
start with an arc command and choose starting, mid, and end points. Or a
circle command if you know the radius of the arc and then break the circle
outside of the stop and start points.
What I have done in the past is to draw a solid 3D rectangle, then placed
a line at the center of the edge I wanted to round. The line length was
the depth I wanted the arc. Then used the arc by three points command to
create an arc, starting at one of the rectangular solid, the center line
and the end. I think you can cut the solid with the arc, if not, then
connect a line from one end of the arc to the other and extrude a solid the
thickness of the board. Use the solid subtraction function with the arc
solid as the subtrahend to mill off the part you don't want.
If you're going to be dumb, you better be tough
Almost every CAD program I've used has a "Three Point Arc" feature/tool that
allows you to choose the start, middle and end points and draws an arc based
IIRC, TurboCAD, the last time I used it, also did this.
Help file on the above term?
OK. I figured it out. I drew a rectangle and then traced out the top and
sides using the polyline tool. I created the curve on the bottom using the
'spline by control points' command and then deleted the rectangle. I
connected the polylines and curve into one surface using the 'Join Polyline'
tool. Next I made it 3D by creating some 'Thickness' in the properties.
Here it is so far. No drawer pulls are drawn yet and the drawer supports
have not been added yet.
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