AutoCad 3D :: Lofting A Base For Light Fixture
Feb 5, 2012
I'm trying to loft a base for a light fixture. It's narrowest at the top and bottom, and its widest point is in the middle. classic design.
Can I upload a pdf? I assume if it's available to everyone via a search engine, wouldn't it be ok to upload it? Any thoughts?
I digress. I'm trying to look at the circles from the side, so they form horizontal lines. I thought they'd be easier to offset a distance to.
I tried changing my views around to achieve that effect, but to no avail. UCS is World view. Or View.
One of the images in the .pdf, is of the appearance I'm after in a front view. So that way, I could do an offset distance of one inch, but as things stand now, that wouldn't work either.
It wouldn't work in this view projection, I think was what the wording was; or close to it.
The only view I was able to do any offsets in was the Top view IIRC, but that just gave me a bunch of concentric circles with no height. At least they were offset.
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Apr 26, 2012
Am just starting to explore Revit and was trying to add some lights to my building to play with some renders. When I try and load anything from within the 'lighting fixtures' however, I am met with the message:
"There is no tag loaded for lighting fixtures, do you want to load one now?"
I have explored a number of other family types, walls, doors, windows, kitchen and bathroom etc and never had this message/error occur.
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May 20, 2010
I'm use to working with autocad layers.In AutoCAD if I'm drawing electrical plan and floor plan, HVAC...ect I just freeze in viewport the things I don't want to see for that particurler sheet.
In Revit I duplicated my floor plan to create my electrical plan. I can add my recepticals and switchs but it won't let me add light fixture. Do I add the light fixture to ceiling plan then some how move them to my electrical plan?
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Nov 1, 2011
I have got a split level building with hanging light fixtures in a double height room. The cable is connected to the double height ceiling, but the fixture itself hangs right down to below the split level used in another part of the building. I have set the light fixtures level to higher level, reduced the hanging distance right down, tried change the host, but they still hang below the split level line.
The fixture is the Rectangular Hanging Light Fixture from [URL] ... And the drawing is in millimetres.
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Nov 16, 2011
I am trying to create a light fixture with a head that can rotate in two axis so that the light can aim up or down and left or right.
I have been unable to create a light fixture that can rotate up and down as shown in the Revit help files.
Here is a resume of my two attempts at creating this and the reasons why they failed:
Embedded family solution: The embedded family will not rotate vertically even as a face based fixture hosted on a line reference. If you rotate the line reference in the horizontal axis, the hosted embedded fixture ignores the rotation and does not follow.
Unique family solution: The light source will not move even if it is locked to a reference line, it evokes an error.
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Apr 6, 2011
Is it possible to add a base depth to the transition lane assembly? I need to do volumes for my road, (pavement, base) but there is a section with a transition (which only has one depth), so that section is off.
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May 8, 2013
I have a base plan with some light fixtures that need to be rotated 180.
Yesterday, I rotated the fixtures then saved the file. Then I closed the file and emailed it. When I reopened it, the fixtures were rotated back, but the file I emailed was properly rotated. I saved over our file with the one that I emailed, and all seemed fine yesterday. This morning I open it and everything’s rotated incorrectly again.
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Dec 5, 2011
Im trying to make a 3d model of a site in AutoCAD and it seems lofting between some contours is impossible, this is driving me insane, first it told me there was a U and V derivative problem so i loft the surfaces that i could but now there is a gap where it refuses to loft and i cannot create a surface in that gap using network or blend or pach.
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May 16, 2011
I have to do a lot of lofting to create 3D shapes. The more the 2D sections are complicated, the more times takes for AutoCad to find a solution (even in a powerful computer). Beside that, I use Guide splines to create the exact shape I want. For this I have to wait two times, first Autocad find its own solution, then the solution with my Guides. Is there a way to make AutoCad loft by default with Guides, such that it doesn't ask for Guides after the initial loft, but immediately at the beginning.
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Feb 13, 2014
Is there any any process to see the lighting fixture in front of Room name text. We have attached a snap for reference.
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Aug 23, 2013
what would be the procedure for creating a loft around a coiled path? is there a way to make the coil command create a path.
inventor 2014
Windows 7 Pro 64
i7-3820 3.6GHz
32 GB RAM
2 TB HD
NVIDIA GeForce GTX 660 Ti
Liquid Cooled
3D Connexion
CM Storm
twin ASUS LED
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Mar 30, 2011
I want to loft the surface, made of polylines.The problem is that, when I select all the splines, and then do Draw-> Modeling -> Loft then I chose the "Cross-section only", this what kind of message I get in command box:
The selected entities are not valid.
Here the .dwg file with the mentioned splines in it:
[URL]
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Apr 23, 2013
Basically we are trying to make a 3D plate (in this case a 2" thick piece of steel) and have a 3D hollow shape inside. Its split into Top and bottom, as shown as the below picture.
top View (plate 1).jpg
I have tried the loft command (which I just learned off within the past hour or so) and it indeed works. But I wish to use its as the opposite, where the middle is hollow and the rest is a solid object.
Side View (plate 1).jpg
I have tried the loft command (which I just learned off within the past hour or so) and it indeed works. But for the life of me does not know how to get it as one big object with the middle shape hollow. Am i missing a step or is it another command completely?
Also, once the object has been created, I want to split the object on its X axis mulitple times, almost like an exploded view. Each split will have its own set of top and bottom orifices which will represent multiple plates.
Is there a way to do that? Also is there a way to gain and separate the top and bottoms of these newly split plates?
Here is the drawing file as well to work on -> 3D-MK1.dwg
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Jun 19, 2012
In previous autocad version that supported Lofting, i was always able to create a solid loft.
With 2013 the loft command seems to divide its abilities depending on what type of profiles are selected.
When selecting a closed polyline profile, loft produces a solid. Works fine.
When selecting a region or solid face loft produces only a surface.
The work i am trying to do at the moment involves irregular sections and/created from existing solids.
I could trace the profile and make a polyline, but each profile contains an ellipse, and you cant trace an ellipse.
Where i used to be able to select the ends of the existing solids and create a solid loft,
I now have to produce a section twice (gives you a region), loft the regions, convert the regions to surfaces (because the produced surface doesn't have and faces), union the surface and then convert to solids
Instead of 1 command there are now 6.
I tried turning of the assiciativity (surfaceassociativity 0) hoping that it had some sort of influence but to no avail.
There was no issue with 2010 and 2012 and i have just installed all 2013 products.
I have a lot of work to do and have to produce 3dsolids.
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Jan 10, 2014
I am working on creating a male mold for a canoe. I first designed the cross sections for the canoe and then began converting them to the mold cross sections. When I try to loft the cross sections I have converted so far, they all loft as I intended until I get to the rear of the canoe (sketch 8). The issue typically arises in gunwale section (the part that appears to be a notch in the sides). Everytime I loft, one of the gunwales splits/twists in an undesired fashion (in the image below the right gunwale is incorrectly twisted).
I do not understand why this is happening for a few reason:
1. The canoe cross sections lofted as planned, and I only added simple boxy shapes to those cross sections.
2. Each cross section is symmetrical (or at least from what I can tell they are).
3. The cross sections that are lofting improperly all have the same number of segments and are in very similar shapes.
I have attached the file of the cross sections and another file of an improper loft.
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Jul 15, 2012
Coming from Sketch up to real big boy tools. I watched the tutorial videos and tried poking around a bit for this specific answer but came up a bit short.
What I'm trying to do is loft a face to a point. Easy enough. I've got my point established on an offset work plane, and I can just loft to that, however, I get nothing but straight lines. (First attachment)
An example of the ideal outcome in SketchUp is the second attachment.
I'm having the most difficulty trying to draw the curves along which I want the face to be lofted because, even as I sketch along my 2D plane, I can't snap the endpoints of my arcs to the endpoints of the face (or the point to which they'll all connect).
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Jan 30, 2013
If you can create a solid by lofting between two section, in this case they are 3d polylines, along a given path. The path is at the top of the sections. Using the loft command I have to key in the PO ( point ) option several times to get the path option to show then when I select the path it gets treated as another section. See attached.
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Dec 3, 2012
Successfully drawn a eggshape for tabletop using 3 ellipse and arcs and converted these into polylines but having trouble converting them all into 1 polyline for lofting.
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Dec 11, 2013
Which program is used now days to create a ships hull lines plan? In the old days it was done on the floor or board drafting.
If I have a unique curved bow, which software is used to create the lines plan.
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Feb 14, 2011
I am trying to animate a casino-like light board made of tens of light bulbs/leds. I thought the easiest way to do it would be creating a matrix of bulbs arranged by material ID and then design a pattern in multi sub-object materiel so I could somehow scrub through it and achieve animation effect. The material modifier allows to change ID for the whole object only and MaterialByElement shuffle ID`s in a random manner.
[URL]
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Apr 7, 2011
I am attempting to build a facsimilie enigma machine, I would like to know how best to create an effect so that when a key is pressed a corresponding letter appears to light up. Btw I am not looking for an animated image, I can take care of the transitions between on and off, I just need to create the two image states.
Attached Thumbnails
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Oct 26, 2012
How do you lock the pivot point of a light to the light itself? I thought just adding a Axis node would move the light and pivot point but the pivot does not move. Is there a way of parenting them together?
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Jun 7, 2013
what determines the way the surface is created when lofting. I am creating a shape and a path but i cant seem to get them surface to follow the path. It always gets creating in a different axis. Is there a way to control that?
Here is an image it should be following the line i made
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Oct 15, 2013
I have 3 scientific waveforms, made into splines , from X,Y and Z data. Basically 3 long wiggly lines.
I wish to visualise the data by modulating a spheres surface in 3 dimensions so that the X data creates wave on the surface of the sphere running along the x-axis , the Y data along the Y axis and the Z along the Z axis. All the data (splines) will interfere and modulate with each other across the surface.
I have spent a couple of days looking at nurbs and lofting but cannot even get close to this. They all only allow splines in 2 dimensions to interact and nurbs cannot cope with the data volume anyway.
ps i can obviously extrude the 1d data or lathe the data but each only makes 1 or 2d surface interaction. The attatched pic is each one of the data splines made into a sphere using a 180 bend and lathe. This isnt exactly how id ideally have it. I need all three joined into one shape.
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Jun 10, 2008
I have spent some time over the last few days attempting to create a boat hull by lofting sections along a line representing the center line of the hull, but I'm not having much luck. The shape that is created appears to be rotated some weird way, and I just can't seem to get a handle on what is going on. The section splines were created in the Front view, the path was created in the Top view. The section shapes were then placed in the Left view to correspond to their location along the hull.
My question is this: where can I find a tutorial that deals with boat hulls and lofting specifically, or failing that.
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Jan 5, 2011
It's new to me the loft compound object, and I found it a little cumbersome.Provided the shape objects have the same amount of vertices, the loft should do its business, is it?
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Dec 6, 2010
How do I use the standard Revit can lights in a wood joist floor with drywall applied to the bottom? If I place in a suspended ceiling, can lights light up just fine. However, if I use them in the floor space of a wood joist floor, the light itself gets covered with the floor. How can I get the light to cut the floor out so I can see the light when it is rendered?
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Jan 5, 2014
Basically I am following a tutorial which says that when you create a loft from a path and two shapes, the loft should still be linked to the shapes, so if you resize one, the loft would change, but that is not happening for me. I am using 2014 so I don't know if this feature has changed, or if you access it in a different way?
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May 9, 2012
I'm trying to make a simple race track for my uni project. I've created the track's path using lines and arcs, and attached them all together into one single path.
[URL]
I'm then trying to extrude the track geometry (a simple rectangle) along the path of the track (see the bottom image).
I'm following a tutorial that says to select the line, then under compound objects select loft. Then under creation method I should chose "Get shape" and select the rectangle, however I'm unable to click on "get shape", the option is greyed out.
Autodesk 3DS Max 2012 Student Version
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May 20, 2011
I am just trying to migrate from VBA to VB.net, I want to know, how we can manipulate the Ctrl+Shift+C, in vb.net, if it is not possible at all, then what is the best way I can find the alternate to this.
OR
If I try to use the wblockclone() then, how do I control the location of the objectcollection when I clone it in my new drawing.
in other words, when I in the proces of clonning I should be able to specify a base point.
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Mar 5, 2012
I want to make some points in 3D sketch base on the Coordinate System that I defined (UCS).Is there any solution to make these points in 3D sketch just by inputing their coordinates in my UCS?
Example: the new UCS origin has (x,y,z) coordinates from the origin.and one of the points has the coordinates of (x',y',z') from the UCS.
So from the origin it has the coordinates of (x+x',y+y',z+z').Is it possible to just use (x',y',z') from UCS directly to get my point?
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