Construction geometry: How to create a perpendicular plane to sketch on.

[Anonymous]

I'm pretty sure I'm a bit stupid here, but so far I've not found a really convenient way to do the following:

Quite often I sketch an object in a sketch at an arbitrary plane (not oriented with any of the primary XY,XZ,YZ planes.)

Then I want to sketch the same thing on a plane perpendicular to that plane.

While I sometimes can use the first sketch to extrude and object, than use that object's face to create a plane to sketch on, I sometimes can't or do not want to have my sketch depend on previous geometry.

I basically want to create my own set of " X'Y'   X'Z'   Y'Z' " planes with X' Y' Z' being my arbitrary new coordinate system for that sketching.

What are the best/most convenient ways to construct such an auxiliary geometry?

Or, phrased differently: having a construction plane, how do I most conveniently create the two perpendicular planes to it? (Not really caring about the origin)

[davebYYPCU]

Without consideration of changing the WCS.

Draw a line, any line.

You can use the line for (2) Plane at an Angle, along the line being zero and ninty degrees, Any two Angles that are 90 degrees to the other,

The third plane comes as Plane on Path at either end of the line, or any position along it.

[lichtzeichenanlage]

Somehow your wish reminds me to mention Rule #1

[Anonymous]

@lichtzeichenanlageWhy exactly (Could you elaborate) ?

I do use different components when the "parts" I work on really should be separate, but how does that solve my issue of (quickly) needing two (or three) perpendicular sketching-planes (which are not along XY|YZ|XZ) ?

This is not the same as first building individual objects (all in their own "aligned" coordinate system) and then joining them - I know how to do that - but when I sketch some additional features (or cut-objects etc) on an existing component where I do want to keep all neat and tidy in one component and at fixed (sometimes dependent) relations to each other.

[Anonymous]

@davebYYPCU

Thanks, but I'm not sure I understood correctly.

"The plane along path" is clear (and useful), but the "Plane at an Angel" does not give me plane perpendicular to the plane the line lies in. (See screen-cast)

[davebYYPCU]

Before accepting the preview,

the dialogue box is asking for the new angle, (Fusion does not read minds, yet)

adjust the angle, to be perpendicular to the block.

[Anonymous]

@davebYYPCU

Sure, but then I need to "know" the angle between my face and the basic planes - or "guesstimate by eye" - both not what I really want.

 Just to be clear: it's not that I "absolutely don't know how to get to that plane", but that I want to know if there is a more convenient, "better" way to do it. The "Endpoint plane" is more useful, actually. (After that suggestion of yours, I've realized that it's possibly best to draw a XY-cross in the Sketch and use both with "endpoint planes".)

[davebYYPCU]

Your original question required no dependency on existing geometry, bodies.

To do what you asked for you would know the angle.

[Anonymous]

This is an older question, but for those wondering, I have a solution that works for arbitrary plane definitions. It only allows for a perpendicular plane to be created.

1. Create plane in the work space. I used tangent to face from a lofted surface.

2. Make a sketch with a line on the new plane.

3. Create an offset plane from the original with a greater than zero offset. 

4. Create a sketch on the new plane with the line from the previous sketch projected.

5. Use the "Create plane from two edges" command.

The result is a plane perpendicular to the work surface. Hope this helps.

[therealsamchaney]

My current workaround is as follows:

1. Make a sketch on the plane that you want to make a perpendicular plane to. Turn on 3D sketch and make a construction line. When the little 3D sketch movable origin pops up, make sure the construction line locks into the origin axis that's perpendicular to the sketch plane.

2. Make a Plane At Angle on this construction line from the sketch and put whatever angle you want. A plane perpendicular to another plane still needs an angle to be fully defined. 

That's it, just 2 steps. Still, it's pretty ridiculous that we need to find workarounds to this. There should be a perpendicular construction plane tool.

[tyler.green.other]

I have a really simple 2 step as well. I construct -> perpendicular axis to the surface I want a perpendicular plane to. and then I do construct -> plane at angle on the axis I created. you can then rotate the plane 90 degrees, and that should give you a perpendicular plane to a particular surface. 

[engineer1984]

I know this an old post that keeps coming up from time to time, but what is the coding reason / problem with having the option to draw a plane perpendicular to a plane in the plane drop down?

I have a curved (part of a radius. not a spline) geometry that I want to rabbet.  Simply put, I just need to draw a plane that is perpendicular to the surface.  The drop down allows me to draw a tangent easily enough, but the angle function within tangent works sort of oddly... It seems to be rotating on the center point of the radius vs the surface... which I guess makes sense except that isn't really what users are probably trying to do most of the time. 

Or maybe there needs to be two ways of drawing a tangent plane: 
1) tangent on the cylinder, but you don't care where the plane is
2) tangent on the cylinder at a specific point and when you type in an angle the plane rotates around that line.  

Anyway, this problem solving got me to Google 'how to draw a perpendicular plane to a plane' and I pretty much came to the solution I also had in mind (draw two planes and a sketch to get one plane).   So made me wonder what the coding issues were that held this software back from having an often needed / obvious tool.   

[davebYYPCU]

My 2 cents.

Construction geometry can not exist with out an existing reference.  Try it, you can not create any one of the options without selecting a Required Article.

A Plane is limited by infinity, has no geometry within it.  The required article - different types within the selection routines, will not be part of the plane you want to refer too.

The basic reply to the problem is to create and joint a new component, to the file origin, 3 orthographic planes and a workpoint (Origin) supplied, where you want it.  See message #3 above.

Edit, typing before your additional details were provided.

Disregard the new component in your case, as you have already got the reference articles.

why does Plane on a Path not do it for you?

Might help.....

[g-andresen]

Hi,

If you post a file with a corresponding situation, one could deal with it.

günther

[jeff_strater]

"what is the coding reason / problem with having the option to draw a plane perpendicular to a plane in the plane drop down?"

There is none.  It is just a question of priority.  There are several missing construction techniques in work planes that would be useful, but we just haven't gotten around to implementing them yet.  This question doesn't come up all that often, so this ends up lingering near the bottom of the priority list.  Not that it would not be useful, just that there are tons of higher-priority things that need to be done first.