Don Bedwell,

         Don did you get the stp file for the rotor housing?
         What do you think?

         Paul Lamar

         Paul,

         I have received many things in the last two days but I don't
believe I
     have
         seen this. Who sent it?

         Don

         I
      did. Here it is again.

         Paul Lamar


         Thanks!

         Did you design it? Is it the latest version that Mr. Lin is

using?

         Mazda designed the rotor housing. They cost about $400 new from
your local
         Mazda dealer.  One of our subscribers did the 3D model. Yes it is
the rotor
         housing Charles Lin is using.

         I have others as well.

         Here is just the end housings less the rotor
          housings.
         These are incomplete but useful for components inside cowl 3D's.

         I also have an aluminum version of just the back end housing.

         Paul Lamar



         Paul,

         I am trying to get just what Charles wants me to do. Will you

send

me any
         and all of the solids that you might have for the EzyCopter
airframe and
         existing design with engine plus any other rotary models that you
might
         have?

         Don Bedwell

         I have no solids for the
      EzyCopter airframe.
         I am sure Charles has some or perhaps just 2 D drawings.

         I did some aluminum end housing for Charles and he has them.
         His property.

         The main problems are building up a one rotor engine, installing
         the engine in the airframe and test flying it. Do you have an
airframe
         or can you build one? If not Jerry Hey can help.

         Paul Lamar

Paul,

I have received a model of the airframe.

Don Bedwell

Great Don. Looking forward to what you come up with.
Here are some jpgs of single rotor Mazda engines so you will have
a feel for them.

Paul Lamar

Paul,

Thank you for your help. I understand that you DO KNOW THIS ENGINE. I am
looking forward to learning.

I must admit that I don't quite know exactly know how Mr. Linn wants me to
help. Maybe you can help him to direct me in some direction.

Regards,

Don


Charles is on here and I assume he is reading this. If I were doing it
I would take it one step at a time. Either build a one rotor or buy
one from several sources and install it in an EZCoptor for testing
purposes.  What sort of fabrication facilites do you have Don?

Paul Lamar


Paul

I have a small shop but nothing like I think we might need. I do my
"machining" on the computer and then let my many friends machine my models.

Don Bedwell

Don,
I have some CAD drawings ( AutoCAD 2004 or dxf) on the single crank, which
will give you a good idea of what you will be needing for the single crank
machining. You would have to allow for tolerances as given in the Mazda
manual, but it may save you some work.

I can also advise you on what materials to use or you could cut down a 2
rotor as Richard Sohn has done. I don't prefer the cut down method for
Aviation use as you would have to plug holes and reharden the new areas, but
it can be done and is a lot cheaper, just not my preferred method. Although
I must say making one from scratch on a home lathe, has a degree of
difficulty.  I also have the Rockwell C numbers if you need them.
Anything to help the single rotor members.

George (down under)

Are you charging for this information George?

Paul Lamar

Paul,
Not at all Mate!
Although it did cost a lot to find out this information myself, mind you if
is a commercial interest it might be a different story.
Just offering some help, I've given the information to others.
George ( down under)


Well how about us? :)

Paul Lamar