how to slice editable poly?

[tricky]

I am trying to slice a editable poly. I have tried slice plane, but I can't snap the slicing plane to where I want it. I have tried cut and quickslice, but they don't seem to slice the top and bottom faces.

Here are some graphics to explain:-


In autocad, you simply click on three points in the plane that you want to slice, and then slice the top off the lower object. Easy.

I am trying to figure this out in Max, but everything I have tried so far has failed.

[rivoli]

you can use the slice modifier, or cut the poly, align and weld verticies (constrain to edge if needed) afterwards. but you'd need two slices, one horizontal and the other vertical, then delete the polygons you don't need and cap or bridge the open borders. if I understand the images correctly..

[Morne]

or make another object and use boolean or pro boolean to subtract and then convert back to poly... but that's a bit a long way around

[tricky]

you can use the slice modifier, or cut the poly, align and weld verticies (constrain to edge if needed) afterwards. but you'd need two slices, one horizontal and the other vertical, then delete the polygons you don't need and cap or bridge the open borders. if I understand the images correctly..

I've tried this approach, but it doesn't seem to work. I will try and attach the file.

[tricky]

or make another object and use boolean or pro boolean to subtract and then convert back to poly... but that's a bit a long way around

Yep - boolean approach is one that I have yet to try. To be honest, I've always steered clear of Max booleans because of historical problems. I will retry if simple slicing doesn't work.

[tricky]

slice poly.zip

Here is the zipped 2012 file.

[Pixelcon]

Or you can draw a tape along the edge I've indicated here, align the slice plane to the tape using the align tool and matching its orientation before continuing on. OR you can actually use the normal align tool with the slice modifier, but it has to be across two different objects. You could just clone the object while you need it for the aligning operation.

[Pixelcon]

slice poly.zip

Check this out. I've aligned the slice modifier to the tape using the 'match x axis' (if i remember correctly).

I think this is what you're asking for, yes? Then break, the verts, move your faces, bridge/cap and weld. bam done.

[tricky]

[ATTACH]11551[/ATTACH]

Check this out. I've aligned the slice modifier to the tape using the 'match x axis' (if i remember correctly).

I think this is what you're asking for, yes? Then break, the verts, move your faces, bridge/cap and weld. bam done.

Will take a look - thanks mate. You'd think after 15+ years of this stuff I'd know how to do it!?!?

[tricky]

OK, so you have used a slice modifier. I was trying to do this using the slice option within editable poly. However, your method seems to work just fine. wILL GIVE THAT A TRY. Oops - sorry for shouting

[Pixelcon]

Normal aligning a slice plane and using the tape to align is a new trick for me too :P
To be honest, I think you can still align the editable poly slice plane to a tape too. I dont think it only works with the modifier. Give it a shot.

[rivoli]

here's a quick one. didn't use any modifier, and didn't cut through the poly either. just connected edges, aligned and deleted polygons.



here's the file:

www.caribou.it/vray/slice_poly.zip

[tricky]

I need it to be aligned like this though...

[tricky]

I have managed to slice the object within editable poly, aligning to a tape (useful tip). I then want to simply move one of the the top polys downwards. In doing this, it creates some annoying triangles. I can of course delete all these faces and recreate, but thats just annoying. Whats a better way?

[Pixelcon]

you'll probably have to break all the verts, lower the edge and bridge the gap thats created when you lower the edge in question. This will result in 5 sided faces on the sides (not that it's a big problem)