If you are not used to using CAD tools like this, I have tried to write a simplified explanation of what the tools will do for you and a beginners guide to getting stuff to work.
If you have used CAD before then skip this bit!

1. Download the Edrawing installation software. you will want the "eDrawings Viewer only" so click that button and then the download button. You will be shown the "Export Eligibility Requirements" It is worth a read if only for a laugh at the naivety of it. Agree to it and click the "accept and continue button at the bottom of the page. it will ask you where to put it - I would suggest that you put it on the desktop.
2. Now you have the edrawingsenglish.exe file on the desktop. double click it and follow the installation instructions
3. Run the application - you should have an icon somewhere, probably on the desktop.
4. read the help file!!
5. I would suggest that you download the model files below by right clicking on the one selected and chosing the "save link as" option.
6. open the model files with the Edrawings viewer by selecting the "File Open" option and then have a play with file
7. you should be able to zoom in to any area, spin the model around, section the model to look inside, explode assemblies (if I have set the model up to do this) and many other useful functions.

Click here to go to the download area for the MAC version of Edrawings

Click here to go to the download area for Acrobat Reader You will need this program to read the drawings.
Be careful to untick any of the extra stuff that this site wants to foist on you

Here are the files that you can view using the Edrawings viewer You will have a more useful tool if you download the files before you use them by right clicking the link below and selecting the "save link as" entry to get the actual file. If you are not using Internet Explorer you will need to do it this way because the file type won't be recognised and just clicking the entry will fill the screen with weird text! Internet Explorer has a viewer that will give you a good model that you can rotate Chanter model Chanter assembly with keys(explodable) 4 drone assembly model (this is a big file) Drone sliding part model Drone standing part model Drone stock model Drone top valve model Removable chanter stock assembly model Bellows inner plate assy Bellows outer plate Bellows outlet pipe assy

I recommend that you download the file into a folder and then open it with the Edrawings application that you have downloaded and installed you should see this picture (I am assuming that you will start with the chanter):- Notice the tabs along the bottom of the image. By selecting the appropriate tabs you can view the different stages of the machining of the chanter. You will be able to spin the model around and zoom in to any part of it.

I have modelled the Burleigh drone assembly and this may be useful to anyone who is planning to make a set from the materials supplied by the Northumbrian Piping Society. The file is an Edrawing as described above and I also note that a verson of the Edrawings software is available for the Ipad.
Burleigh drone assembly