PATTERNS

[shankmaster]

How would one go about patterning the slot in the wheel every 40 degrees where the slot changes dimension width?

 

[alwaysdrunk]

Hi shankmaster


yes it is possible in pattern command.you just have to specify dimension inyour widthin sketcher mode because pattern tool will let you choose a dimension ID to be increased incrementaly

 

[shankmaster]

Thanks for the help, friend.


Now, what if the width of the slot is not increased incrementally. As for my piece, original slot width is .375. The slot is rotated about the center axis every 40 degrees. Slot width decreases to .3125, then .250, then .1875, which is incrementally -.0625. The next slot width is .160, then .125, .090, .076, and finally .068.


Again, TIA

 

[shankar_me]

Hi Paul,


Try patterning using table.


Shankar

 

[shankmaster]

I am working on that right now. I have the dimensions placed in a pattern table, I am just not sure how to rotate the slot every 40 degrees in the pattern table. Can you shed some light, please?

 

[copyboy]

You have to enter each angle into the tablefrom the zero reference:


The first angle is 80 the second is 120, 160, 200, ...

 

[shankmaster]

Okay, I understand what I want to do, I just don't know how to get there. I offset a datum plane out to the surface of the wheel. On this datum plane, I extruded the slot. I do not see any angle information to reference so that I may put that info into the table to rotate about the axis. How do I make a zero reference?

 

[jp1983]

Hi Paul,

As far as I understand you made an offset datum plane for the extrusion. The problem is there will be no angular dimension to drive the table pattern.

So you have to create a new datum plane trough an axes and at an angle with one of the main datum planes.
This datum plane should be made on the fly, this means you have to click the extrude feature and then make the plane. You can also drag the plane within the extrusion afterward if you are using Wf3.

If you now pattern the extrusion the angle dimension will be available to add to the table.


Make sure that the datum plane is embedded in the extrusion.






Jonathan



Edited by: jp1983

 

[shankmaster]

Okay, we are definitely close but I still have 1 more problem. I cannot seem to get the datum plane to embed within the extrusion. I have clicked extrude, and then datum plane, but it throws it on top of the extrusion. Same thing if I go into sketcher, or even after I sketch. How might I solve this issue?


I really do appreciate everyone's help. I seem to be learning alot though it may not read that way.

 

[jp1983]

Hi paul,

The datum plane shows up above the extrusion while you are creating your extrusion, but when you finnish the extrusion feature it will be within the extrude feature.

If that`s not the problem you probably didn`t sketch on the created datum plane.
If there is no connection between the extrusion and the datum plane, proe will trow it out.

Jonathan