Work Plane Problems

[Anonymous]

During this social distancing time, I am trying to learn the basics of Fusion 360. I am trying to follow along with some of the YouTube videos by Lars and others but I have a problem. When I try and create an object ( in this case a simple center rectangle ) once I extrude it, the object always shows to be below the work plane. The corner orientation cube shows correct but the item is below the work plane. Any ideas what I am doing wrong?

1. Create sketch
2. Select XY plane
3. Select center point rectangle
4. Select center origin mark for rectangle. Form rectangle
5. Esc
6. Select rectangle, it turns blue.
7. Select E for extrude. Raise blue extrude arrow up 40mm. Enter.
8. Rectangular box shows on blank background
9. Select top of rectangular box. Matches corner cube orientation.
10. Select “Create Sketch”.
11. If I select the corner of the corner cube for an angled view, It shows the created rectangle below the work plane with the top oriented against the bottom side of the workplane.

[Hydra9059]

I followed the steps you mentioned. It may because while you were extruding the rectangle you in opposite direction to the working plane you were expecting for. After that when you select the top of the box and tried to create a sketch you observe that the top of the box is below the XY plane as you extruded in the opposite direction.

You may extrude the rectangle in the right direction observing the dialogue box

[davebYYPCU]

There is nothing wrong, or unusual.

The first sketch is hidden automatically - if you set the preferences to do that or not.

The second creation of a sketch delivers the sketch plane where you are and has nothing to do with the old sketch.

To see what you want to know, unhide the origin planes they will be on the bottom of the block, all being normal.

Might help....

[Anonymous]

Thanks. How do I change or fix the issue? I am following Lars Christensen’s videos to learn 360. Once he extrudes the rectangle he selects create sketch on the top surface so he can place an offset to make a chamber in the rectangle. What do I need to change so I can continue working on the top surface? Thanks, I am new at this.

Darrell

[davebYYPCU]

There is no issue, you need the workplane / sketch plane top of block, to continue, 

you have done that, take the next few steps, new rectangle or offset the outside edges, but that will depend on his and your preferences.

I should have told told you but you are new, so did not want to confuse you, 

i don’t use the visible sketching grid, so me clicking on the top face turns it blue.  Photo, 

now you have sketch tools on the top of screen, you can continue adding the sketch stuff.

He uses a function that allows the top of the block to be added to the new sketch when starting his sketch, if you hide the block clicking on the eyeball, you should get a blue shading, if your preferences are the same as his.  He will select that border to make the Offset.

I know he did a video showing what he sets his Preferences to, 

Happy to help, there are no silly questions.

[Anonymous]

Sorry. I appreciate your time, but as a newbie this makes no sense to me. All videos start with select a work plane. I select XY with Z up. Once I select a plane, I create an object such as a rectangle on that plane. If I select sketch or sketch set and extrude it up or in Z direction, if always ends up below the work plane. Is it possible something it set wrong in preferences or my program is corrupt? Do you have a better set of videos I should be using to learn from?

Thanks for your time

Darrell

[chrisplyler]

---

@Anonymous wrote:
How do I change or fix the issue?

---

You don't. You need to understand the following:

1. When you use Extrude to create the first box, you are effectively Stopping the first sketch.

2. When you click Start Sketch along with the top face of the box, you are beginning ANOTHER sketch on THAT plane.

3. So of course, now, the box is BELOW THAT plane.

[davebYYPCU]

What Chris said, is what I said, we are both happy that you are not having a problem, unless,

you can Screencast what you are doing / seeing is actually not happening correctly.

Once I select a plane, I create an object such as a rectangle on that plane.

Correct so far.

If I select sketch or sketch set and extrude it up or in Z direction,

if always ends up below the (new - second) work plane.

All is correct if you have what is in my picture at this stage, origin on the bottom, and first sketch is on the bottom.

A new Sketch placed on the top of the block, will always put the block under it - normal. 

You need to have your Preferences the same as His to follow his videos, if not weird things happen.

I can't point you to his Preferences video, because it is embedded in one of his "other beginner" topics.

What I would recommend is The CADWhisperer YouTube Channel

he has examples and teaches the "right way", 

not just "a" way to do things.

Might help....

[Anonymous]

Thanks for your response. Your suggestion makes sense, but if I create a rectangle on a plane surface (XY), and I extrude upward from that surface (trying to keep the top elevated above the work plane), why does it go below the work plane? If I extruded in negative numbers (downward), I could understand why it would be below the work surface. Thanks for your time. Appreciate any tips or training videos to learn this beast.

Darrell

[Anonymous]

How would I screen cast? I tried holding my cell phone and that didn’t work well.

[laughingcreek]

https://knowledge.autodesk.com/search-result/caas/simplecontent/content/download-autodesk-screencast...

[chrisplyler]

---

@Anonymous wrote:
Thanks for your response. Your suggestion makes sense, but if I create a rectangle on a plane surface (XY), and I extrude upward from that surface (trying to keep the top elevated above the work plane), why does it go below the work plane? If I extruded in negative numbers (downward), I could understand why it would be below the work surface. Thanks for your time. Appreciate any tips or training videos to learn this beast.

Darrell

---

If you Extrude it up, then it goes up above the work plane. Your next step was starting a new sketch on the TOP of it. That means the top of it becomes the NEW work plane, so of course the box is below it now. Whatever face you click on to start a new sketch BECOMES the current work plane.