AutoCAD Inventor :: Roller Chain Generator Without A Closed Loop?
Dec 20, 2013
I'm designing a lift truck with a "chain over" lift - the lift cylinder has a sprocket mounted on the end of the rod, and the chain is grounded on one side. The other end of the chain is mounted to a lifting carriage so that as the cylinder extends and pushes the sprocket up, the chain rolls over it and the carriage moves up (at twice the speed of the cylinder). This is nothing new - it's pretty much how every single fork truck in the world operates.
My question is this: can I use the roller chain generator to model this chain, or should I model the links and array them along a path? My thinking is that if I can use the chain generator, I should be able to animate the chain using Dynamic Simulation. But the chain generator seems to require a minimum of 2 sprockets in order to work - there's no way that I can see to have a "non-looped" chain or any way to just ground the end of the chain.
I am trying to create a roller chain as part of a cad drawing of a bicyle.
I created a link of the chain (pic attached) and I am following this video to repeat it as a rectangular pattern : [URL]....
However the links are not following the path they're supposed to - I can't attach that file right now.
Anything that I should do different from the video? I have been using inventor for a little while but I've never used the adaptive stetches or the functions thing ot a rectangular pattern that is not in the shape of a rectangle.
Any good place to get 3d models of roller chain sprockets? I've been looking for a while now but i can't find anything that provides the variety or accuracy i need.
I've got a chain that runs between two sprockets. In between the sprockets is a slider that needs to be attached to the chain so that the rolling of the chain moves the slider back and forth.Right now the chain just runs straight through the slider, it isn't connected at all. I can't find any way to tell Inventor that this slider is connected to the chain.
I am attempting to make a roller chain animation. what would be the best method? I have found a fairly good method of creating the chain using array in Inventor then importing it into max as the assembly arrangement needed . Can I just have all of the links follow a path?
Has used the frame generator to model the posts and horizontal pipes that would go into a chain link fence?
We have generated several fence models as simple part files. They work in that they get the basic idea across and they're fairly quick to create. But I started thinking about a more detailed model and I wondered if it would be an appropriate use of the frame generator.
I am trying to create a closed loop alignment for a track. Previously i have included a small gap between two alignments to get around the problem when a housing plot is created (see the attached dicument) when a closed alignment is created, Is there any way of getting rid of this?
I am trying to assemble a roller to follow the path as shown in the attached file. I am able to make it follow one path, i.e. around the bend, but then how do I make it continue along the straight section and not continue around the circular path?
I eventually intend to use the dynamic simulator tool to animate my full model. Is there a way to use the connection parameters in this environment to enable the roller to follow the correct path.
I have two set of chain drives connected to each other through a common axle. The motor (which is not visible in my assembly) drives the yellow sprocket.
The two sprockets mounted on the grey axle is attached with a key way so when the yellow sprocket turns, the two chain drives turns.
I want to attach the blue sled on the blue chain, the red sled on the red chain and then rotate the yellow sprocket so both of the sleds moves with their chains (at the same speed/ time).
The blue sled is going to move a rolled bar (the orange one) on the floor (glass square) a certain length and then the red sled is going to "take over" and continue to move the bar on the floor.
I want to make sure I´ve got the spacing between the sprockets in the short chain drive (red) correct so the red sled takes over when the blue sled disappears under the floor.
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Edit: I use IV 2012, but I also downloaded IV 2013 professional (trial) so I can use the dynamic motion.
I have used PEDIT to join multiple polylines, which now appear as polylines. But when I use QSELECT to show all open (non-closed) section, one polyline still shows up as open.
I've attached the file I'm working on. The polyline in question is the green outline on the object on the right.
I have a sphere body whose material is partly removed by a boolen subtraction with another sphere. When I query the EdgeLoop of sphere for Outer edge loop using function InvEdgeLoopPtr::GetIsOuterEdgeLoop(), I always get a value of VARIANT_TRUE. check for the inner and outer loop of a sphere? use the attached file for reference.
Have sketched the geometry for an 18 tooth circular sawblade. However I have had difficulty applying the close loop function. As a result am not yet able to extrude the saw blade. What to do to implement close loop?
I am trying to create a logic rule to replace the model reference in a idw file and then save as using the new file reference name. I am able to do this for individual files or components within an assembly file.
However what I would like is to check through all files of a certain type (for example ipt with filenames beginning "SSUA" ) in a specific folder.
The following code from Curtis Waguespack works well for individual selected files but I would like to take it a stage further with the above parameters.
Dim oDoc as DocumentoDoc = ThisDoc.DocumentDim oRefFile As FileDescriptorDim oOrigRefName As Object For Each oRefFile In oDoc.file.ReferencedFileDescriptors'get the full file path to the original internal referencesoOrigRefName = oRefFile.FullFileName'present a File Selection dialogDim oFileDlg As inventor.FileDialog = NothingInventorVb.Application.CreateFileDialog(oFileDlg)oFileDlg.InitialDirectory [Code]........
I have VB code that loops through and utilizes Excel data to pick which file(s) to open, update, and close. Then it opens the appropriate .idw file, updates it and saves it as a .pdf.
and that writes the file to my desktop as a .pdf.
However, as the loop runs over and over, it will find another data set that is the same A60 type, so it will want to save OVER that .pdf it's already created.
How do I go about having a variable filename? Something where it would add a _01 _02 _03 (or similar) to the end of the filename (i.e. A60_01.pdf, A60_02.pdf).
I am currently designing a heat exchanger and want to adjust the number of water channel using iLogic. The number of channels to be active is based on the channel dimensions, and is calculated in my excel spreadsheet, but up to a maximum of 19. This is stored in the parameter "no_channel". Each channel is a seperate feature (extrusion) and named from "Channel 1" though "Channel 19".
My idea of doing this automation was to have iLogic suppress all the features, and then doing a closed loop to unsuppres the features I want active:
Feature.IsActive("Channel 1") = FalseFeature.IsActive("Channel 2") = False...Feature.IsActive("Channel 19") = FalseFor i = 1 To no_channelFeature.IsActive("Channel"(i)) = TrueNext
However, this gives me the following error:
Error in rule: Number of channels, in document: Radiator fin side.ipt
Feature.IsActive: No feature found with the name: "h".
I'm desperate to know how should i heal the errors for loop orientation issues. I had imported the .stp file into inventor so i can do stress analysis. After imported the file and enter into repair environment, after i find the errors shown 9 errors in loop orientation issues.
I am not sure exactly why this is a limited feature of Inventor 2011 but when you want to select a sketch to create a boundary patch you have to select each part of the sketch in sequence. It's a pretty laborious task. I am looking to a way to automate this using i logic.
I am attempting to split a face so I have a good area to apply a load in simulation and 3/4 of the areas split just fine but I CANNOT get the 4th area to split! This is all just projected geometry but left and right are symmetrical so I can't figure out why the L side works but not the R side.
way to redefine a point that was placed in a model with a "Center of Loop of Edges" command? Inventor doesn't seem to recognize type of placement unless it's been selected from the Point drop-down menu, but picking this in the midst of a redefine only creates a new point, it doesn't redefine the original point.
As it is, I've been forced to just delete the original point, create a new one and go from there.
Infrastructure DSP '14 / Product DSP '14 / Vault Professional 2014 Dell Precision T1650 Windows 7 Professional SP1 64-bit Intel E3-1270 V2 3.5GHz / 32G RAM Nvidia Quadro 2000, Driver 331.82 Space Navigator, Driver Version 6.17.7
I'd like to use the Cable and Wiring tools to model some fibre optics. I can see how this could work well, being able to set and check for the minimum bend radius. However, I'd also like to include a loop of greater than minimum bend radius between the two connection points, we tend to do this to reduce strain on the fibres. Any elegant solution for inserting the loop?
I have just started to use ilogic, what i want to do is measure the length of a loop in a sketch and then use this measurement as a parameter.
I have found this rule that will measure the loop length and display it in a message box
Dim se As SketchEntity = ThisDoc.Document.ComponentDefinition.Sketches(1).SketchLines(1) MsgBox(ThisApplication.MeasureTools.GetLoopLength(se)*10 & " mm")
but i do not know how to capture the measurement as a parameter .
I want continuously to display the loop measuring of a Spline/Arc/Line/Slope (or even have it as a dimension / parameter on a sketch/part) because it change in relation to the block-position that constrains to the slope.
I'd like to create a macro that I can run from within an assembly that will loop through each BOM item and add the quantity req'd to a custom property within the component. I'm very familiar with VBA from Office, but I'm new to it with respect to Inventor so I'm pretty fuzzy with object titles and options.
Here's an outline of what I'd like to do:
Execute Macro from within Assembly file
For Each BOM Item to # of BOM Items
If Vendor = "Make" then Set Component Custom Property "Qty_Reqd" = Total Qty from BOM Endif
I am trying to setup some rules to print various PDF files which we have managed to do without any problems.
The bit I am stuck on is when one of the PDF files being saved is open by another user.
We have been able to error trap it when it is open by showing a message box on error asking them to close the file befopre continuing. The current message box being used is the Retry / Cancel box.
When the user clicks Retry we would like it to re-run the rule, or loops through the rule and check is the file is still open. If the file is open return the same error, and if the file has been closed save the PDF file. When Cancel is pressed it ends the rule (This Bit has been done).
My questions is how do I get the rule to re-run / loop through when the retry button is pressed.
Is it also possible to show the user who has the file open (or Previewing it in a Window Explorer)?
I have attached the Code currently Being used but I can post it here of preferred?
