Start with the features around the 3 holes. The surface at the bottom of the \/ doesn't actually continue into the "tubes". But I am willing to bet they are parallel to the /\ opposite that region (where the R11 is).
Have alook at the rib feature for that vertical center wall.
Things got a little off when joining the lower base to the 3-hole feature. Knowing exactly what the numbers applied to was less that intuative. So I began with this:
And the numbers stopped making sense when I got tot the merge... something was off. All too often someone will truncate dimensions and they are not as "neet" as they appear. This is what you might be dealing with. This is how I ended up merging stuff:
Aha... yes... the R11, R8 and 38 are the key references to determine the angles.
And the center hole diamter is missing! I don't like missing dimensions 
I'm not 100% happy with the way I modeled it. Not really the best methods used. Couple features in there don't really need.
Matt, you got there pretty much the same way I did. The only difference in interpretation is the upper core removal where I stayed with a 2.5mm wall on the angled face.
Also have a look at extrude 9... I just used the optional second extrude direction to fill the small void in extrude 6.
I also see where you had trouble with the fillets in the bottom core removal where the center rib meets the R11. Since rounds don't like jumping boundaries, I had to extrude it.
Of course, leaving the R11 sharp and radiusing it later would also have solved it. But it is one of those things that can cost you a lot of clicking to find out just what failed.
Yeah there were a couple things I missed at first and then didn't try to make the tree nicer after. I started out only planning to model the bottom of the part and then decided, screw it I'll just keep going and see how it looks.
So you're right I could have re-ordered 9, extrude 5 I didn't even need. At first I didn't realize how deep the angle went (cutting into that area).
Are you saying because mine is R11.5 at the bottom? I just carried the wall thickness down to the bottom, I didn't even try it at R11.
Loic, come on, we're tired of this one, next part, next part.... 
HI Guys,
so heres the last pozt to wrap it up
- Clamp feature how to especially
- "x" form
- remove material
- base dimensions
- Is it possible to do a shell with a dual shell? (top 3mm and bottom 5mm)
- For the previous part, remember the trapezoid section above the cylinder and ball. So far i completd the design but it isnt allowing me to shell out this drawing-Maybe some advice?
- Excuse me for dredging up the base again but can anyone explain the barrier type feature? On the top face.
CHeer fellas and see you.
loic bishop wrote:
HI Guys,
so heres the last pozt to wrap it up
- Clamp feature how to especially
- "x" form The X-Form is a rib function. Can be done with extrude, but ribs are a nice feature to explore.
- remove material Remove material is simply the opposite of adding material in the extrude and revolve features. There is a specific button in the dialog for this.
- base dimensions Yep, as Matt said, these dimensions were included in the earier excersize.
- Is it possible to do a shell with a dual shell? (top 3mm and bottom 5mm) I don't know that I would even shell this part. Shells fail if
rounds have been applied. In this case, since it is simple enough, I would extrude either the top or the side walls, and extrude the other from the previous geometry.- For the previous part, remember the trapezoid section above the cylinder and ball. So far i completd the design but it isnt allowing me to shell out this drawing-Maybe some advice? Again, shell is touchy. It -must- shell all features. If rounds are specified that go to zero, it will fail. In many cases, I prefer creating surfaces and then adding thickness instead to solidify things. If it gets really complex, you might create the inside and outside quilts and solidify once stiched and closed. None of your parts have yet justified -extreme- measures.
- Excuse me for dredging up the base again but can anyone explain the barrier type feature? On the top face. I see that as an extrude. Specifically where are you having difficulties?
CHeer fellas and see you.
