Failure to slice

[RBPrice]

Yesterday SLICE worked, today not so much.

 

Incredibly simple wooden staircase dwg. - trying to SLICE a simple plank to shorten it. Created a 3point plane, pick the part, tick off the three corners of the slicing plane and cannot get it to select the side to keep. It worked yesterday but not today.

 

What slicing god have I offended?

 

Thanks

DECK STAIRS.dwg

[nestly]

Turn off SNAP

[RBPrice]

Did that but still no SLICE

[rkent]

It worked fine here so I am not sure how to help other than to tell you there was nothing wrong with the drawing, as far as my experience with it goes. Could you just keep both sides and then erase one, at least as a test?

[nestly]

After you're done attempting to SLICE, press F2 and copy/paste the command sequence.

 

Command: slice

Select objects to slice: 1 found

Select objects to slice:

Specify start point of slicing plane or [planar 
Object/Surface/Zaxis/View/XY/YZ/ZX/3points] <3points>: 3p
Specify first point on plane:
Specify second point on plane:
Specify third point on plane:
Specify a point on desired side or [keep Both sides] <Both>:

 

Also, you don't have to physically create a slicing plane, you can just select any two points on the xy plane and the slicing plane will automatically be extended in the Z direction. OSnap tracking also makes quick work of slicing, with or without using the 3point option.

[RBPrice]

OK - that worked but that tells me that something is wrong with my AutoCAD 2013. Not surprised since in has been squirrely from day one.

 

Thanks for the help.

 

Bob Price

[RBPrice]

Well the other phenomenon that has crept in is the response that the object is not in the cutting plane. So I fussed around and after putting in the plane, it seemed to "find" the part which IMHO was clearly in the plane. Must be the tide is high in the Hudson River or something.

[nestly]

I believe the original problem is related to a combination of the UCS and the view where the pick point is actually on the opposite side of the slice plane than what it initially appears. In the video, SLICE is performed twice using exactly the same procedures and pick points, the only difference is the current UCS. I actually always do what rkent suggested, and delete the unneeded piece after ending the SLICE command.

 

 

I think the issue in post #7 is likely related in that the 3point plane was probably not defined correctly.

 

Also, as mentioned previously, physically drawing objects to define a slicing plane is usually unnecessary. see video below and pay attention to the Z plane relative to the pick points.

 

[RBPrice]

Great video Nestly - thanks very much for going to all that trouble for me. My confusion is that in the side view, the plane I defined is clearly in the correct place to slice the handrailing. And when I did use the BOTH

choice, it sliced correctly. Part of my problem is that I migrated from 2008 to 2013 and in 2008, slicing was no big deal including the ability to choose which part to keep.

 

Again, my thanks for the help.

 

Bob Price

[ReMark]

How is 2013 different from 2008 when it comes to slicing? You are implying AutoDesk changed something about the way the command works in 2013?

[RBPrice]

Well I am very old but if memory serves, the process, as I remember it, seems to have been much more straightforward in 2008. Particularly being able to choose which part to keep.

[nestly]

You're right, there shouldn't have been any ambiguity when SLICING from side view.

Were you using the 3point option, because that would make it possible to accidently define the wrong plane. When things are basically orthogonal (as they are in your drawing) it's easier to just avoid the 3P method IMO. I also like to track the 2nd point rather than using an OSNAP because it eliminates the possibility of skewing the slicing plane.

 

I actually did the videos in Acad2011, but I did test 2013 and it was the same.... I never did any 3D work prior to 2011, so I couldn't say if SLICE worked differently back then.