Problem with the exercice "Basic features 1" of "Introduction to CAD"

cédric_cretegny

Hello everyone,
I'm learning how to use onshape with "Onshape basis, introduction to CAD". I
And I'm getting mad with the basic features 1! My volume is 1.516 inch3 and it isn't the correct answer… and I don't know why. I spent hours without any change.
You can see my work here:
https://cad.onshape.com/documents/5720b43fb61be851e8e66fd9/w/07b8823a7e8c2ea1c87515ab/e/def78185f703154e799d8f84
What's wrong with it?
Can someone help me?
Thanks,
Cédric

cédric_cretegny

I have modified my work and now my volume is 1.650 inch3 and it is always wrong…

owen_sparks

Is the correct model given in the answer?  If so can you boolean one from the other to see where the difference is?

OwS.

cédric_cretegny

The problem, I do not have the correct answer. Is someone know if the corrections of all excercices exist somewhere in the net ?

owen_sparks

@noa Can you help here?

Cheers, Owen S.

owen_sparks

@cédric_cretegny

Do you have a link to the question?

noa

While not published "officially" with detailed walk throughs, we do have the numerical solutions here: https://docs.google.com/a/onshape.com/document/d/12TghwdCibYQFwlLJbyA02jKglQoKzFwaxvahqeOwTvc/edit?usp=drive_web

In general, if you are able to post a public link to your doc, there may be people who can help you debug.

owen_sparks

@cédric_cretegny

Here is a place to start:-

You see I've:-

(1) Taken your part and derived in the answer's part as an overlay. 
(2) Copied both parts via a transform.
(3) Boolean subtracted the results to show the exact differences.



https://cad.onshape.com/documents/97e91d0a58ba5a94db44bf34/w/c708fda8e13ecc4aee694a27/e/1595717b3ccac7b508d2e099

Sorry, I've not read through the exercise to see what the problem is.

Hope that helps, Owen S.

brian_jordan

There is probably a better place to ask this but for the moment here will suffice.
When I select the link that @owen_sparks has just posted, rather than opening a document that relates to this topic my browser takes me to my own recently opened documents with a message at the top saying "Failed to load document for workspace. Resource does not exist, or you do not have permission to access it." This is the second time this has happened in 2 different threads over the past few days.
I am using an up-to date Chrome 64bit browser on 64bit Windows 10 and I have flushed the cache to see if this clears the problem and it doesn't!
Anyone else?

owen_sparks

Sorry @brian_jordan in this instance that was my mistake.  

The document exists but I'd failed to make it public.  So when I clicked the link to test it it worked fine, but when you clicked it it wasn't available so is defaulted you back to your recent docs.

Sorry for wasting your time, and please retry if you're still interested.

Owen S.

brian_jordan

Thanks @owen_sparks You didn't waste my time and I am now able to look at the document. In fact this has been educational because you have confirmed that what I thought was a problem is in fact the default behaviour - something I had missed.