AutoCAD Civil 3D :: Joining Three Grading Objects

Apr 24, 2013

I have a compost pad and retention pond to design, I set my back Pad line to surface and then graded to elevation so the slope to the pond will have no cuts

I created a pond and left out the grading to surface on the up hill side towards the pad which will be paved one day. I now created two side feature lines to enclose the whole pad and graded by distance and slope.

My problem now is the two side and back seem to blend together as I attached the feature lines together but I can not figure out how to blend into the pond create as it has side slopes to EG and the front which must join to the side slope crest to enclose the pad to drain into the pond.

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AutoCAD Civil 3D :: Surface From Grading Objects

Jun 20, 2013

It has been too long since I created Grading Objects and Proposed Surfaces. I am working in a file with my existing surface DATA Linked. I am creating a grading plan. I have created three separate grading objects in the Site named Proposed. One in the building, One is a new ditch, one is a graded existing ditch. I need to make these three with the unaffected areas of the existing surface into a new surface. How do I accomplish that . All my grading objects appear to be individually accurate and are created with a Feature Line and Grade to Surface Styles.

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AutoCAD Civil 3D :: Grading Objects Disappearing When Editing?

Aug 18, 2009

Using 2010 with update 1 or whatever it's called these days, I'll just call it the first fix.

I've made three grading objects using "Grade to Relative Elevation" along a feature line. Then I've added a grading transition between them. This seems really unstable now, like making the wrong move makes the whole thing disappear...but what is strange is the feature line that is attached to the grading object that I have added into my surface remains, but there are only a few lines where the grading objects used to be, basically the line that seperates the different sections of grading.

There's no way to edit the grading again either, it has to be remade, because there is nothing to select.

Civil 3D 2010
Dell Precision 690
Intel Xeon 2.00GHz Dual Core
4 GB RAM, 256mb nVidia Quadro FX 550
Windows 7 URC 64-bit Operating System

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AutoCAD Civil 3D :: Grading Objects - Holes - No Contours

Mar 1, 2013

I have grading objects that are to match existing grade. However, When I grade to match surface, I get missing countour data.....

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AutoCAD Civil 3D :: Grading Objects From Curb Lines - Linking?

Oct 12, 2011

I have been creating grading objects from my curb lines, assigning grades using the editor, then offsetting that line for the BACK of curb, and using the raise-lower command to raise the curb line height. If I edit the original face of curb line (gutter grade) then I go back and redo the process. Is there any way to intelligently link these two lines so that if one gets edited C3D knows the other is 0.5 feet higher (or lower) than its neighbor?

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AutoCAD Civil 3D :: Grading Objects To Fill In Area At Building Corner

Jun 20, 2013

I have a Proposed Building Pad. Grading is 3:1 on 3 sides. Grading is 5:1 in the front of the building. How do I get Grading to fill in the area at the building corner between the 3:1 and the 5:1 grading? I thought infill would accomplish this but it seems to have no effect when I select the objects. I included a screen shot and the area at the left corner of the building.

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AutoCAD Civil 3D :: Linking Objects - Create Grading Feature Line For A Stoop

Sep 4, 2013

Is there away to link a i.e. (a stoop to a finish flood elev)? So that, if I were to raise the finish floor, the stoop would move also. I understand I could possible to a create grading feature line for a stoop, but what happens if the stoop would be irregular shapped and not a rectangle?

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AutoCAD Civil 3D :: Creating Objects (Feature Lines / Grading) With Naming Template Query

Jun 26, 2012

When creating Feature Lines, I wanted them to be e.g. Step Line 1, Step Line 2, Step Line 3 etc so I amended the name template to suit. I created multiple from objects and the naming convention worked. If I did features individually (as I wanted certain ones in certain sites) it worked for the first feature but reverted back to the default Feature line name on subsequent entry to the dialog i.e. it had "forgotten" the template name just set.

Am I missing something to get this to work correctly or is this how it's supposed to work i.e. useless for individual feature line creation?? This also happens for gradings.

IDSP Premium 2014 (mainly Civil 3D 2014 UKIE SP1 & Infraworks with some limited 3ds Max Design)
Win 7 Pro x64, 256Gb SSD, 300Gb 15,000 rpm HDD
16Gb Ram Intel Xeon CPU E5-1607 0 @ 3.00GHz (4 CPUs), ~3.0GHz
NVIDIA Quadro 4000, Dual 27" Monitor, Dell T3600

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AutoCAD Civil 3D :: Infill Grading VS Feature Line Grading

Dec 24, 2013

"An infill grading has no criteria applied to it. Any area bounded by feature lines or lot lines that is not already a grading can be converted to an infill grading."

So given an area enclosed by a feature line, an infill grading can be created. Using the same features line, an feature line grading can also be created. what is the difference between these two surfaces? They both have no criteria applied to them.

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AutoCad :: Joining Objects Without Losing Lines?

Feb 6, 2012

Im creating plans for a new entryway and so that I have some perspective on how it will all join together i'm also creating a 3d model of my entry idea. In order to move things around to get a better view of how im planning on building this entry, I joined studs together so that I can move things around in the viewport without having to select each object. I know I can grab all the objects at the same time to move but I was wondering IF there is a way to union objects so that they dont lose the lines between joining objects. For example if 2 - 2x8 studs are next to each other and I were to union them, then they would plot as a 4 x 8 instead of 2 - 2 x 8's OR is there a way to maintain lines after union?

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AutoCad 3D :: Joining Angled Objects / Close Gap So It Looks Like Seamless Piece?

Aug 25, 2012

I'm just starting with ACAD 3d. I'm trying to draw a handle for a ball valve. The handle has a horizontal piece and an angled piece. In the attachment, you'll see that there's a gap where the two pieces meet. How can I close the gap so it looks like a seamless piece?

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AutoCAD 2013 :: Joining Surfaces Of Objects In Different Layers Without Forming Continuous Volume

Oct 9, 2013

I have two cubes in two different layers so that one is red and one is blue.  I want to attach these two cubes together at a surface, but keep that interface between them in the rendering (not just have them combine to form a continuous object with no interfaces).  

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AutoCAD Civil 3D :: Joining Up Borehole Strata?

Nov 8, 2012

I got a few boreholes in a test drawing and i want to join the various strata horizons (with 3d polys or something) to create surfaces.

Each borehole has several points organised in groups (input via the Borehole Importer Tool) I have gone into  a SW isometric view but cannot snap to any of the points that are "below ground". I have got Node OSNAP on but can only select the topmost point every time

Whilst I could create surfaces based on the point groups this will give rise to geologically suspect surfaces so there is a bit of manual interpretation work needed.

IDSP Premium 2014 (mainly Civil 3D 2014 UKIE SP1 & Infraworks with some limited 3ds Max Design)
Win 7 Pro x64, 256Gb SSD, 300Gb 15,000 rpm HDD
16Gb Ram Intel Xeon CPU E5-1607 0 @ 3.00GHz (4 CPUs), ~3.0GHz
NVIDIA Quadro 4000, Dual 27" Monitor, Dell T3600

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AutoCAD Civil 3D :: How To Raise Grading

May 9, 2012

Is there an easy way to raise an entire site by 1.0 foot and have the grading hit the previous targeted surface?  The only way I have found is to grab all the feature lines and raise them up by the required amount, but by doing that, the grading bogs down my system and it crashes, plus, I have grading attached to 3dpoly's and not necessarily all feature lines.

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AutoCAD Civil 3D :: Grading Toe Disappearing?

Apr 25, 2013

I am drawing a pond levy.  I draw the outline of the top of the fill, set that at the elevation I want, then grade it down to the existing surface on a 6:1.  The grading works perfectly.  The outline of the fill's footprint shows up just fine around the back of the fill, but the toe line doesn't show up all along the front side of the fill, but I still get the slope lines projecting down in the front. 

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AutoCAD Civil 3D :: Use Grading For Channel?

Mar 6, 2012

I want to cut a channel through a existing surface; bottom width: 5 feet; at elevation 1950 and side slope 1:1 (45deg) up to existing ground.

What I am doing right now is create a feature lines 5 feet wide, at el 1950 and use grading tool to project it to existing ground with side slope at 1:1. What i am doing is correct?

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AutoCAD Civil 3D :: Grading Subdivisions

Oct 16, 2013

I am working with Civil 3D 2014, I played with 2009 back in 2008 and before that it was Land desktop.  I don't know if I am not following a standard workflow.

Build the EG from contours.Layout the CL for the ROW and convert to a horizontal alignments.Create the profiles.Design the vertical alignment in the profile.Create the assemblies for the different types of road sections.Full profile, pavement width assembly, the curb return assembly, the daylight left / right, 1/2 side left / right, and pavement width left / right.Build the corridor, set the target surface as EG or FG, depending on where the section of the corridor is located. (At the edge of the property to EG, then after the first building pad to FG)This is where I have a thought something is wrong. If I am grading the entire site, why would I have the ROW grade to the EG, when I will need the surface to grade from the ROW to the closest building pads?Create the intersections, using the different types of assemblies, per the ROW sections.Create feature lines and use elevation editor to set all the elevations around the pad.Using the Grading creation tool, grade to surface, using a 2:1 side slope. Then adding an infill to the pad.

 I keep having the file crash after grading about 10 lots. I recover and it works find, but then the file runs very slow, and will crash. I haven't taken any classes in Civil 3d, and am looking for one in my area.

I am use to creating the vertical surface then creating points along the CL, TBC, FL, BOW then creating break lines along the points. Then create a break line for the pads, and build the FG contours from these break lines.

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AutoCAD Civil 3D :: Grading From The Side

Aug 8, 2012

Say I have a grading that runs north south and goes down 2%, up 2% and so on waffling along. Is it a poor practice to trace the side edge of the grading (in the same site) to add another grading to pitch east west?

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AutoCAD Civil 3D :: Grading Transition

Mar 4, 2013

I have a building pad where I created a grading of 5:1 to existing grade.  I want to change one side to 20:1.  How do I go about transitioning the 5:1 to the 20:1.  I create the 20:1 and the contours just dead end into the 5:1 grading area

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AutoCAD Civil 3D :: Grading With Different Slopes

Dec 31, 2013

I tried to work with grading but it didn't work,

1 - The square helicopter pad is flat and grading with 2:1 fill, 1:1 cut.
2-  The second FL is 2% slope down and grading with 2:1 fill, 1:1 cut.
3-  The third FL is slope down to meet the existing road, both sides will same cut and fill.

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AutoCAD Civil 3D :: Helicopter Pad Grading

Dec 30, 2013

I am creating a helicopter pad, with cut slope 1:1 and fill 2:1. But when i created a transition between the pad and existing road, i don't know how to. I have added a feature lines and make a separate grading but somehow it didn't work.

I have attached here the dwg file (C3D 2014) .

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AutoCAD Civil 3D :: Residential Grading Display

Mar 19, 2013

What does "Residential grading display" mean?

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AutoCAD Civil 3D :: Grading Against A Retaining Wall

Sep 8, 2012

I have a platform at level 13.275m and nearby there is a retaining wall at aprox. level 4.0m. 

For the wall i've made a surface using feature lines from EG till level 15.0m and then pasted into the EG surface to create the 'barrier' for the slope. But when i do the grading with the fill slope projection to surface, when it reaches the retaining wall section, the contour lines go crazy and if i do a quick profile, the fill slope line (obvious) is iregular, rather than a straight down line (2:1)  going from level 13.275m till it hits the EG.

I've attached a picture to show the problem better.

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AutoCAD Civil 3D :: Complex Object Grading

May 21, 2012

I am tring to grade a complex object. Please see the attached document. The two grading objects are not interfacing correctly when graded although i can get the surface almost correct i beleive. Is there a way to remove this issue or the grading will not create a lot of difference when computing the volume clacs ( we are talking volum computation roughly about a million cubic metres cutting).

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AutoCAD Civil 3D :: Inaccurate Grading Volumes

Aug 29, 2012

I have noticed that the value I get when I use the surface volume comparison tool or look at a graded item in the grading group properties box is different than if I calculate it by hand and the discrepancy isn't even consistant.  After spotting this problem in a job I am working on graded two simple ponds to check this.  The first one is 100' x 100' and 5' deep w/ 2:1 side slopes.  Calculating the volume by hand I get 1500 cu. yds but the grading group properties come up to 1506.17 cu. yds.  The accuracy is off by less than 0.5%  The second pond is 100' x 100' and 2' deep with 3:1 side slopes.  The hand calc gets me 654.52 cu. yds. and the grading group properties reads 655 cu. yds.  This discrepancy is closer to 7%. I really need to know if I can trust the volume tools in the program. 

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AutoCAD Civil 3D :: Grading Between Two Features Lines

Jun 10, 2011

can i make grading between two features lines.

i want to make a slope from FEATURE LINE 1(FL1)   TO FEATURE LINE 2 (FL2)

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AutoCAD Civil 3D :: Grading Filling In Embankment

Dec 20, 2012

1 Do I create feature lines at toe , then vertical between the toe and the cliff , then use the grading & elev.editor
2 Once I obtain the infill surface l, how rotate or orient the model w/ rocks so this photo 3 is draped over it.?

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AutoCAD Civil 3D :: Volumes / Grading And Surfaces

May 30, 2012

I have an existing topo surface created as well as grading for a proposed elevated pad of earth done in civil 3d 2013. I simply want to calculate the cut and fill quantities. I created the grading with automatic surface creation checked on. When I use volume tools to see what the quantities are, it says 0.0 for both cut and fill.

I created another surface (TIN) and pasted the existing topo surface and the proposed grading surface into it and I couldn't get any quantities.

I created another surface (TIN volume) and set the base surface as the existing surface and the comparison surface as the surface created from the grading but again could get no quantities.

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AutoCAD Civil 3D :: Grading Object Projection

Jun 18, 2012

I am having difficulty projecting an existing feature line at a specified tie-in slope.  I have a steep (3:1) feature line that I need to project at a specific slope (2.5:1)to intersect a surface model.  When I create the grading object the generated grading object is not 3:1 along the feature line and 2.5:1 perpendicular to the feature line.  Instead I am left with a new slope that is 1.9:1 between the generated contours.  I have attempted slope to surface as well as slope for a distance.My design criteria is to not exceed a 2.5:1 tie-in slope.

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AutoCAD Civil 3D :: Grading Will Not Create Surface

Jul 19, 2013

I have two separate graded levees in my drawing. One has created a surface just fine, the other absolutely refuses to generate a surface. I've deleted the grading even the feature lines and re-did them. In my grading group I have automatic surface creation checked and the volume base surface checked. I show the surface in the prospector but there is nothing there. The one levee will show contour styles but this one ZIP!

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AutoCAD Civil 3D :: Grading Downward To Surface

Aug 1, 2012

I have a feature line that is below the surface of an existing earth dam embankment. I want to grade downward from that feature line at a shallow slope until it daylights somewhere down the embankment slope. How do I accomplish this? All I can get it to do is slope upward (cut) to the existing surface.

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