problem extruding to or from angled construction plane

[jamesdarrah1]

This probably has a simple fix, I just haven't found it. I'm trying to make a support for a touch screen display. The 4 upright supports are placed the required distance apart at the base but due to the elongation of the top due to  the slice, it is too big for my  use. I need the measurement at the top to be 0.3" x 0.3". After the slice it now measures 0.3" x 0.357".  The odd extrusion in the middle was created from the construction  plane down to the base based on a 0.3" x 0.3" rectangle. As you can see it is perpendicular to the construction plane and not the base. How can I get the extrusion to go down and perpendicular to the base?

[jhackney1972]

Is this what you are looking for?  Model is attached.

[jamesdarrah1]

That is what I was looking for. I understand the loft part but I can't figure out how you created sketch4 with the rectangle in the correct position underneath the top rectangle.

[g-andresen]

Hi,

try extrusion to object

günther

[jamesdarrah1]

Thanks for the reply. That was what I did originally, extrude the bottom rectangle to the correct height then created the angled construction plane to cut the top of the 4 towers. The problem I had is that the sloped top isn't 0.3 x 0.3 anymore. It is 0.3 x 0.357 which causes problems with mounting the display. That is why I tried starting with the 0.3 x 0.3 rectangle on a sketch built on the construction plane. The dimension at the top is more important than the dimension at the bottom. The other answer  posted starts with the top 0.3 x 0.3 rectangle and somehow creates the rectangle beneath so the loft goes straight up instead of my attempt where the extrude went perpendicular to the construction plane instead. I need  to understand how the lower rectangle was created, hence my follow up question.

[jhackney1972]

I changed my mind, a Loft will not be entirely square from top to bottom.  The attached video is one way to do this and maintain the dimensional squareness for the complete length.  Model is attached.

[jhackney1972 · Accepted solution]

Here is another method, probably a little quicker.

[davebYYPCU]

@jamesdarrah1 @jhackney1972 @g-andresen  Need more coffee?

Edit the base sketch, set a construction line to the angle of the cutting plane.  The driven dimension (because it is not required anymore) is the side dimension of the centre rectangles.

Sketch patterns and blue lines are not recommended.

With a bit of planning, one sketch to make this is another method.

Might help.....

[jamesdarrah1]

thanks for all the replies.  Dave your method was my plan c. I got the extrude to work, finally. Here is the finished 3D print.