I have two parallel lines, seperated by a dimension. I need to change the dimension back and forth between 0" and 4" for my model. Occasionally, the dimension will flip directions when I am changing it from 0" to 4". Is there a way I can avoid this? Should I be approaching my sketch differently?
Inventor 2014
HP Pavilion dv6t-6b00
Intel Core i7 2670QM
AMD Radeon HD 6490M
8gb RAM
Windows 7 64 bit
3Dconnexion SpaceExplorer
Here's the situation:
I have a tube, approximately 16" O.D., 14" high, and 1/8" thick. This is all a single part.
I'm trying to cut 3.5" wide and 4" tall slots around the top. The number of slots can be 1-6.
I'm driving the size and slots from a spreadsheet.
The orientation of the slots can have the first slot anywhere from 0 to 360 degrees. (FWIW, the spreadsheet redefines 0 and .0001 and 360 and 359.99).
Anyhow, as long as the first slot is between 0-180, it works just great. Once you pass 180, however, the verticals of the sketch flip so it's barely cutting the notch at all.
To make the cuts i've created a sketch off the top of the cylinder and drawn a construction line at 0 and another and put a driven dimension between them to set the correct position of the angle. I think create a workplane off that line tanget it to it's end point. At that point, draw sketch, extrude, etc.
I've also create a workplan off one of the origin planes and the origin Y axis that's perpendicular to the notch (angle driven by spreadsheet and equation in workplanes angle offset). Offset a 2nd plane tangent to the O.D. of the tube, created a sketch, extrude etc.
In both instances, when the angle crosses 180 degrees, the sketch flips on me.
What can I do to keep the sketch from flipping?
Flipping the direction of the constrain dimension,
I couldn’t figure out how to flip the direction of the constrain dimension (attached) while working in the block editor environment.
Software: AutoCAD 2014, AutoCAD C3D, AutoCAD M3D, Revit
Windows 7 (Ultimate 64 bits),
Firefox 20.0,
Kaspersky 2013.
I would like to be able to offset a 3D Sketch in a direction normal to a plane. In the attached image, I have drawn in an orange color the direction I would like the 3DSketch to offset.The white line is where the new sketch would be.
The yellow surface is the 3dsketch extend to a plane
There might be some tools in Inventor that will do what I am trying, but I have not found it yet. I have tried extend surface, but that will not take it the direction I want.
I am dimensions moving around in my drawing files and I am trying to figure out why they do this. I change one little thing on my models, open the drawing, then spend 30 minutes going over every dimension in comparison to the old drawing trying to find all the ones that moved erratically and put them back where they were. Most of the dimensions that move don't have anything to do with the change I made to the model.
For example, the dimension in this picture used to be on the other side of the other extension line, and it was never that close to the geometry:
Inventor Professional 2013 (SP-2.3), Product Design Suite Ultimate
Desktop: Intel Core i7 3.4GHz, 16.0 GB RAM, Windows 7 Ultimate SP-1, 64-bit OS, (2) GeForce GTX 580 (331.81), Space Pilot Pro (3.16.1)
Laptop: Intel Core i7 3.9GHz, 16.0 GB RAM, Windows 7 Pro SP-1, 64-bit OS, GeForce GTX 780 (331.81), SpaceNavigator (3.17.7)
I've created a shared sketch and have used it with various features. Sometime those features are suppressed. The model works fine but the shared sketch generates a sketch doctor error because the feature that created it has been suppressed. Is there anyway to make the sketch suppressed so it doesn't trigger a sketch doctor error? Inventor 2013
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Inventor 2014 PDS
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Using IV2014 Pro SP1 update 1, Win7-64bit
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kPositiveExtentDirection
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Windows 7 x64 -64 GB Ram, Intel Xeon E5-1620 @ 3.6 GHz
ATI FirePro V7800 2 GB, 180 GB SSD & 1 TB HDD, Inv R2013 PDS Premium SP2 Update 3 (Build 200), Vault 2013 Workgroup Update 2 (Build 17.2.9.0)