Center point of the coil doenst keep when i move the sketch

[chrisvargsch]

Center point of the coil doenst keep when i move the sketch, its something unlogical because i think its only to create a coincident constraits but i can´t. Please i will apreciate it too much. Because is not the first time i find something similar. 

[tallisb]

I recommend you create a component first, then anything you create will appear under that component and move with that component, such as sketches, bodies, origin, etc.

[laughingcreek]

the coil falls into the "primitives" category, along with sphere, box, and torus.  they all pretty much suck b/c they aren't parametric.  if you want to use coil anyplace other than the origin, then do what @tallisb  says and put it in a component, then move (and by move, i really mean "use a joint") the component to the location it needs to be.

[chrisvargsch]

Thanks men but doesnt work? See how i need. I neccesary need work in sketch because the sizes always changes

[laughingcreek · Accepted solution]

https://knowledge.autodesk.com/community/screencast/ab31bcef-1a45-4b8a-8ac1-136e995d3c5c

[chrisvargsch]

Thanks for your video, i apreciate it alot. That exactly what i want. Trying to do it i have this problem, In your video go in the correct plane i do this 3 times and the same result. When you select the origin of the component in my computer goes different. why?

[laughingcreek]

My guess is that you have Y up on your view cube, which is the default.  I long ago changed my preferences to have z up, which is the way machinist and 3d printers  tend to like it.

joint anchors placed at the origin always lie flat on the xy plane (normal to the z axis).  I don't know the reason.

3 possible options-

-You can put a sketch (such as a circle) in your component with the coil to give you an anchor point

- you can put your coil on the xy plane instead of the xz plane.

-you can change your preferences to z up and start a new drawing.

[HughesTooling · Accepted solution]

Edit. I noticed the embed screencast doesn't show my keystrokes, here's a link to the screencast page where the keystrokes show.

My suggestion is don't use priatives for anything apart from quick experiments where edits are not needed.

Here's a screencast that shows how to create your part using a couple of sketches and sweeps. Note Chain selection is unchecked in the sweeps and path along profile and the use of 3d sketch. While experimenting on one occasion I had the origin of the second sketch move from the end of the coil, that's why I projected a point rather than use the origin.

I've attached the design. A couple of tips you might want to add to what I've done. First, probably should have created the part in a component from the start. Second, you could use parameters to drive the part. As well as the obvious diameters and twist angle you could also parameterise the offset of the 2 way extrude so it always runs out of the end of the part.

Mark