AutoCad :: Spline On Path Of Circles
Oct 24, 2011
I am new here I am drawing a CAM that was designed, the CAM has a follower and after it it's attached to another turning piece, so you could say the whole thing is one big Bearing, you could call it a CAM Bearing. Anyway
I've drawn a set of circles along the path of the CAM (the circles are the follower), now I need to make a spline that fits that path. The problem is, that spline always intersects my circles. I need it to always stay tangent to the circles (ie. not intersect)
I have tried many ways and one way was to make the spline connect at the mid points of the circle but it still doesn't work.
I have attached some photos and also the DWG
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Apr 24, 2012
Path array of a point on spline, I’m wondering why the path array of a particular point on the spline doesn’t force the points to lie on the spline itself!
Software: AutoCAD 2014, AutoCAD C3D, AutoCAD M3D, Revit
Windows 7 (Ultimate 64 bits),
Firefox 20.0,
Kaspersky 2013.
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Jun 11, 2011
I have to animate a long tentacle like object eminating from something , wrapping around another object and pulling it backwards. I have been looking at splineIK,pflow and some other approaches but they only cover part of the animation I need.
I am playing with PFlow and I can get something to spawn along a spline path to wrap around the object but not sure how to simulate the thing retracting and pulling the object with it.
I know there must be a better way to do this.
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Jun 5, 2012
I have problem with animating camera along a spline using path constraint. The spline has been spline normalized before added to the path constraint. Then I add besier floating to be able to slow down the camera.
The final camera seems to move not smoothly. This can notice especially when the camera are further away from the origin (0,0).
Some says it's because of Max's coordinates is not fine enough which can clearly proved when import autocad file which located very far from the origin into max and most vertex will be shifted from where it should be in Autocad.
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Feb 27, 2014
So I keep seeing this method of design on sites like dribbble or behance but I don't know how to do it!
Here's an example: Basically a bunch of circles are used to create this awesome shape and design. I have a general idea on how to use the pathfinder tool and I have used it a lot in the past, but how do you snap circles together with smart guides? It seems that the smart guides only snap based on 90 or 45 angles and don't snap edges of objects together unless there are two anchors.
Here's an example: I want to use the curves from 2 circle shapes to make a complex path. But I can't get the two paths to snap together
Ultimately to create something like the raindrop image above. I want to use the perfect curves on circles to create more complex shapes but since the paths do not snap together, I'm just eyeballing it to be close enough to do something with the pathfinder tool.
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Feb 28, 2011
I am trying to LOFT multiple ellipse shapes along a spline path to create a door handle. But as soon as I choose 1 section, MAX creates the shape. I cannot figure out how to create the shape with multiple cross sections. I have attached a screen shot and a pic of the door handle I want to create.
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Sep 28, 2011
I'm trying to create an external involute spline (ANSI B92.2M) Fillet Root Side Fit 26.9mm x 1 mm x 26 teeth x 38 mm long using the spline generator with Inventor 2012. I created a test shaft"M-182-AMA.ipt" that is Ø26.9 mm x 38 mm long with 1 mm radius on each end of shaft.
I use the following steps:
1. After creating component "M-182-AMA.ipt" I select Design tab>>Power Transmission>>Involute Spline.
2. A window appears that has the caption "Involute Splines Connection Generator".In the Dimensions section I choose "Splines Type: ANSI B92.2M - 37.5 deg, Fillet Root, Side Fit, 26 x 1.00 x 38 x 5H/5h" and change the Length to 38 mm.
3. In the Shaft Groove section I use Create new, and I push the Reference 1 button that turns blue, I then select the od feature from the model and I get an error(see attached pic "error1.jpg).
I changed the 26.9mm od to be 27mm and it still gave me the error.
Work Station : Dell Precision R5400
OS: Windows 7 Business 64 Version 6.1.7601 Service Pack 1 Build 7601
Processor Intel(R) Xeon(R) CPU E5405 @ 2.00GHz, 1995 Mhz, 4 Core(s), 4 Logical Processor(s)
BIOS Version/Date Dell Inc. A10, 4/30/2012
Graphics Display Card: ATI FirePro V4800 (FireGL V) 1.00 GB Adapter RAM
Computer Memory: 8 GB ECC RAM
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May 9, 2012
I'm trying to use the spline IK system to animate a linked 'train' on a path.
There are 4 segments which are joined with a universal coupling. I can only get one segment to actually follow the path, as the others don't follow at all. I've attached my example file.
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Feb 11, 2005
I'm trying to make a logo. Circular logo with an inner ring maybe 4 px wide and 15 px inside the rim of the outer circle.
Basically I want a blue circle with a yellow inside ring. What's the best way of doing this? The only thing i can think of is: creating a blue circle marquee, and then another (trying to estimate a new circle size and change the color) that is yellow, and then making another smaller blue circle inside the new one. That's just ugly.
I tried the edit/stroke but that just gave me a stroke around the outer circle; it didn't put a ring inside the circle 15 px down.
Also I tried to contract the original circle by selecting it, then Modify/contract. That's got me a selected ring, inside the circle. Now how in the world do I make that little ring yellow? It just remains selected and I can't seem to find a way to color it.
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Jul 11, 2012
I have many drawings that were created with the xref's as full path and I need them to be relative path. I would just go in and reatch them as relative path but the drawings are complete and there are different layers frozen in each one.
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Aug 31, 2012
Is there a way to change an xref from saved "full path" to "relative path"?
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Nov 12, 2012
I have found a way to convert FULL to RELATIVE using XRP2004.lsp but not the other way round. Main reason I want to do this is to change the Relative to Full, move the drawing and then revert them back to Relative.
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Feb 9, 2012
Actually, I have more than 6 years experience on Catia V5 customization and vb and vb.net catia API's. What I am trying to do know is converting some applications or programs running on catia to the inventor.
The first program deal with the inventor API relating to the SweepFeatures class. So my first problem is about to find the right way to use the sketch3D for the creation of the path which is the input of the sweep method.
(oInvPartFeats.SweepFeatures.AddUsingPath(oInvProfile, oInvProfPath3D, kNewBodyOperation).
I know That is possible to create a path by using the CreatePath method when the input is SketchLines or any guide curve in the 2D Plan. Also, I tried to generate path by using the ProfilePath3D method of the sketch3D class but No way, the AddUsingPath method of the SweepFeatures Class doesn't accept it as path Input.
So I cannot imagine that is limitation of inventor because it was possible to do it by using the seep function of the model tab in the ipart document. How to create the path object as an input of the AddUsingPath method of the SweepFeatures class.
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Mar 1, 2013
I am attaching a File as a xRef. At the time of Attachment, I select attach as attachment, and No Path in Path.
Now if I try to fetch detail of this file using MdiActiveDocument.Database and BlockTableRecord, I gets only file name not the path. However, In AutoCAD we can see the file path under "Found At". Can we read / fetch this using C#.
In case of Full Path or relative Path, I gets full path in btr.PathName
Here is my code and I am using AutoCAD 2013
Database db = acadApp.DocumentManager.MdiActiveDocument.Database;
using (Transaction Trans = db.TransactionManager.StartTransaction()) {
BlockTable BlkTbl = (BlockTable)Trans.GetObject(db.BlockTableId, OpenMode.ForRead,false,true);
db.ResolveXrefs(false, false);
[Code] ...........
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Apr 30, 2013
I've created four lines and want to spline the end points. Heres my
Public Sub CommandButton4_Click()
Dim pt1 As Variant
Dim pt2 As Variant
Dim pt3 As Variant
Dim pt4 As Variant
Dim pt5 As Variant
[code]....
I get a runtime error - this should be straight forward..
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Apr 24, 2012
I can not get the SPLINE shown *attachment* here to show up in the PDF form of AC 2012 Lt.
No issues with the DWG version. I changed the layer and the color. The rest of the sketch is perfect, just NO spline ( Codend Tie Line).
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Aug 22, 2013
how to Explode Spline?
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Jan 26, 2012
Here I enclose file Cam_Profile.ipt, this is a spline curve made from an Excel matrix with 670 points in 3 decimals accuracy (VBA editor)
Extruding is not possible because of self intersecting path.
I want to trim both two free ends from the intersection and also close the intersection for extruding this profile. However ....., without displacement of any current point in the perimeter of the closed spline!
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Aug 20, 2012
How can I draw Spline with fit points in AutoCAD 2013 .NET API using my own jig?
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May 20, 2013
What changed between acad lt 2007 and acad lt 2012. Cannot draw a simple 2 point spline curve in 2012. how I do it? Is it a sys variable changed somewhere?
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Feb 20, 2013
I know there is a Spline command in the AutoCAD.
Can I create a B-spline which has two endpoints and two control points in AutoCAD similar as the one in the Solidworks?
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Nov 18, 2010
I have created a shaft and splined one end of it successfully. The shaft is the same diameter at both ends and I need to spline the other end as well but when I try, I get the following error messages, Cannot create iFeature. Not possible to create shaft groove. Splining the first end went without a hitch but Inventor absolutely refuses to spline the opposite end of the shaft. The shaft diameter is correct for the spline I have chosen (same as the major diameter)
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Dec 26, 2007
How can i convert a arc shaped spline to arc.? I need to get the radius of that spline. Is there any way to get the radius of arc shaped spline.?
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Apr 24, 2011
I have one drawing but this is Spline but i want to convert it into polyline. without tracing it. i attach my dwg file with this massage.
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Jun 3, 2004
How can I convert Spline to Polyline.
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Feb 27, 2012
Im using autocad lt 2004. My plotter does not recognize splines, and I would like to convert them to a polyline. How to do this, been trying to do if for a few days now but to no good.
when I highlight the spline it will not give me a option to turn the spline into a pline.
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May 25, 2011
I am a student and I am trying to transform a spline into a polyline with the AutoCAD 2009 that with have at Uni for the CNC machine but "pedit" doesn't work.
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Oct 31, 2012
When I am drawing using the "spline fit" I am unable to transfer my DXF to a laser,water-jet, CNC router etc... Is a spline any differnt than a "line? the yellow will show up on the machine, but the green isn't recognized.
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Nov 7, 2013
I have a group of Points coming from a step.file. So I don't have their coordinates, excel list or anything else. Just the step file. Around 100 points. There is a line between each 2 consecutive points.
Is there any way to select all the points and create a complete spline? Or even to select all the points and create tangent arcs between all of them?
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Nov 24, 2013
Spline curve command has changed. This is terrible as I used to use simple line types to show different things on my drawings that was rapid fast with custom macros etc. Now the spline curve command does not work in same way costing me hours of time wasted. I have now resorted in saving all incoming drawings to older version and completing my drawings that way. Only problem is the new drawings are growing above the capabilities of my old machine.
How can I initiate the old std 2 point spline curve in the new software so it works the same way as old version?
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Mar 27, 2012
I'm wanting to make a corridor model from an imported DGN that contains centerlines and edges of pavement for a neighborhood. From 2011 and 2012, the import creates splines while 2010 and older create 3d polylines. The alignment creation from objects does not work on a 3d polyline or spline and I have no clue how to make a profile from the same object. How could I go about making an alignment and profile from a 3d spline or 3d polyline?
Infrastructure Design Suite Premium 2014
Civil 3D 2014 x64
Windows 7 64-bit
6GB RAM
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