extruding problem

[illyrianeye]

I am trying to extrdue a floor slab. I draw the line around the outside of the building as show and extrude a -6" thickness, but i only get the outside face of the slab and no top surface. Anybody know why this happens? see attached image.

 

thanks

[Matt Clementson]

Two possible reasons;

 

1) You haven't got Cap Start/Cap End checked.

2) (And most likely) The line is not a closed line. You'll

need to ensure that there are no gaps, etc. Selecting all the vertices and welding them can help.

[illyrianeye]

Two possible reasons;

1) You haven't got Cap Start/Cap End checked.

2) (And most likely) The line is not a closed line. You'll

need to ensure that there are no gaps, etc. Selecting all the vertices and welding them can help.

 

cap start and end are checked. I will try method two. Where is weld? I am guessing modify panel. I have only used viz for rendering and applying materials so bare with me on the modeling.

 

thanks

[Tim Saunders]

Yes, in the modify panel. After activating vertex sub-object level, a button will be available to click that says weld. That will fix the problem.

[illyrianeye]

Yes, in the modify panel. After activating vertex sub-object level, a button will be available to click that says weld. That will fix the problem.

 

I couldnt get the welding to work, but i did re draw the slab and extrued it correctly. What is welding and what does it do? Does it close a polyline?

[Tim Saunders]

Yes, It does close a polyline, as ling as the verticies you are welding are within the value in the input box to the right of the weld button. with any line/spline in viz/max, you can go to vertex sub-object level, select the verticies you want to weld, scroll down the right panel and click weld. Now extrude and it will work.

[illyrianeye]

Yes, It does close a polyline, as ling as the verticies you are welding are within the value in the input box to the right of the weld button. with any line/spline in viz/max, you can go to vertex sub-object level, select the verticies you want to weld, scroll down the right panel and click weld. Now extrude and it will work.

 

Finally got the hang of welding. If only I could learn how to keep the line command active while panning, and how to undo the last step in a line. Any ideas?

 

Thanks for the help by the way

[Tim Saunders]

2 things.

1- In your customize, prefferences menu, under the viewports tab, make sure the mouse controls section has "zoom about mouse point orthographic" checked.

2- When in the line command, if you decide one of your clicks isn't in the spot you wanted it, hit backspace on the keyboard and that will cancel the last vertex point click without exiting the line command.

[illyrianeye]

oh man thanks, this is working amazing. I knew zoom worked, I guess I meant to say Pan with the middle button, while active in line command. but pressing i does the trick.

 

im so excited i can model in viz!!!!!!!

[FlytE]

If your interested.... there is another function that is similar to weld called fuse. If 2 vertices are not quite meeting, if you select them both and press fuse, it will move the two and join them at the closest possibly point.

 

The only thing you have to bear in mind with this is that it WILL move your vertices so might slightly affect the final shape. You can always move them back but if this is not an issue then its a very handy way of ensuring that all potentially unjoined vertices meet, especially when creating a complicated spline.

[illyrianeye]

Thanks, I will give it a try. Is there a way to isolate snaping in viz? I want a line to hit perpendicular to another line, but because i have both snaps on, it always chooses enpoint.

[emiliolopez]

When you are going to make the line that is going to be perpendicular to the previous one do this,

 

click to make the first point, with the command line still active press shift+right click, you will see the quad menu, the the right top menu (named snap overrides) has the option to isolate the perpendicular snap or any one you want, select it then make the point on the existing perpendicular line.

[illyrianeye]

ahh, it worked, this is getting very helpful, thanks.

 

 

 

When you are going to make the line that is going to be perpendicular to the previous one do this,

 

click to make the first point, with the command line still active press shift+right click, you will see the quad menu, the the right top menu (named snap overrides) has the option to isolate the perpendicular snap or any one you want, select it then make the point on the existing perpendicular line.