Newb attempting throttle body/intake trumpets, need advice.

[F1Pilot]

Hey guys,

First post here. I have only been using Autocad for about 3 weeks now and amself-learning as a hobby to make some nice CNC parts for my engine.

I have a couple files that I would like to share with you guys who have thesmarts and can show me the error of my ways!

The first three items I have created are:

1. A solid "tool" which will be lathed up from aluminium with apolished surface. This will be used to layup carbon intake trumpets.

2. A ewp (electric water pump) adapter plate, to be machined out ofaluminium. In this one, I did not know how to fillet the bottom edge of theintake/outlet pipes to the body.

3. The big one for me. A 3 piece throttle body. This throttle body has 3 X40mm "primaries", and 3 X 45mm "secondaries. It will use 8mmbrass butterfly shaft, and standard 22mmOD 8mmID bearings at each side of eachpart of the throttle body.

I sent these to a machine shop to get their advice on what is required forthem to be able to machine these up. Unfortunately, he said the files did notcontain enough data, and he could not see them properly.

So what have I done wrong with these files? Hopefully you guys can see themand I thank anyone in advance for any help.

If this post belongs in the beginners section, mods please move.

Thanks guys.

trumpet#3 (45mm) tool.dwg

ewp adapter plate.dwg

3x3runner 3d.dwg

[JD Mather]

I opened a couple of your files and saw regions or surfaces - no solids?

And no 2D dimensioned drawings?

Do you own a basic Technical Drawing textbook?

[f700es]

It looks like you have a good start but you need to learn a few basics. Have a look at the 3D tutorials here on CADTutor and take a look at the ones in JD's signature. Both offer good examples that will get you started.

[therealsaint01]

somthing like this? sorry i was hoping for an added image..

[F1Pilot]

Wow, that looks awesome. But Im actually doing something like this:

 

 

Ok, the trumpet tool files were good enough for the machine shop to use on their CNC lathe.

Now the throttle body is getting done at a different shop and he is struggling to open my .dwg for some reason.

I have redone a model, (I hope is solid now), is this more along the lines of what it should be?

3x3runner 3d #3.dwg

[JD Mather]

What version of AutoCAD do they have?

Perhaps you simply need to save the file as earlier version.

[F1Pilot]

I am using 2010. So is that new model more along the lines of what it should be?

 

The engineering shop could still not see the file properly and have requested if I can post the file as one of these “ IGES .igs” “ PARASOLID .x_t” “STL .stl”?

Are they solidworks formats or something?

[F1Pilot]

..........

Edited November 27, 2011 by F1Pilot
double post

[JD Mather]

If they are requesting an stl file - I would find another shop. (they don't know what they are doing if they request stl file)

AutoCAD 2010 will not export IGES or Parasolid (2012 will).

You could acisout to save as *.sat file

or

download free Inventor Fusion http://labs.autodesk.com to open dwg and save as IGES or Parasolid.

[f700es]

FYI - AutoDesk 123D can open dwg files and save as;

.stl

.sat

.igs

.stp

.wrl

.svg

 

Seems to be based on Inventor Fusion so maybe this might work as well.