Paul,

It looks like there are several versions of the Maximite. Which do
you recommend?

Subject: K9555 - Silicon Chip Magazine Maximite Colour Computer Kit -
Altronics

http://www.altronics.com.au/p/k9555-maximite-colour-computer-kit/ <http://www.altronics.com.au/p/k9555-maximite-colour-computer-kit/>

Scott Gettings

Yes that is it.   Color Maximite.

They are in Australia so that may be an Australian price.

There used to be a company in the US called Circuit Gizmo. That sold
it in the US. Put "circuitgizmo maximite" in your search engine.

My GOOGLE search engine quit working for some strange reason. They
wanted me to verify I was not a robot. But that did not work either.
I think Google is down. Does it work for you?

Also my smart phone quit working. Same thing Google. Google ought to
be put out of business. They are a monopoly.

I used another search engine and found it.

http://circuitgizmos.com/gizmo-store/#!/Maximite-Computer/c/14171440/offset=0&sort=normal <http://circuitgizmos.com/gizmo-store/#!/Maximite-Computer/c/14171440/offset=0&sort=normal>

$59 dollars US for just the assembled PC board. That is the one I use.

-----------------------------------------------------------

    BTW this  is the site of the guy that invented it. Absolutely a genius.

http://geoffg.net/maximite.html <http://geoffg.net/maximite.html>

   http://geoffg.net/About.html


I wish we had a Color Maximite on the time to climb. Then we would
have a 100 times better instrument panel. The Motec instrument panel
sucks big time. The Motec 800 does some of the things like data
logging which is trivial on a Maximite. If I had my way on the TTC I
would have used 5 Maximite's instead of anything Motec has. Motec
cost thousands of dollars.

Here is the Motec instrment panel. You select one of three with the
switch. See if you can make head or tails out of it.


Now here is a screen from the Maximite

The display potential is enormous. Screens are available in many
different sizes as they are standard PC VGA's

Paul Lamar

It seems that most of the big EFI players have ECU's that are set and
controlled by software, which have gauges displayed, setting tables
and code burning ability. Who ever set up the time to climb would
have used that software, called M1 Tune. That in your pic is a
dashboard display, fairly limited with just the basics needed to fly
the aircraft.  Computer hardware is not much good unless there is
software to go with. Lots of us can tinker with the mechanical, some
electronic hardware, but programming will send most into hiding!

Steve Carlisle

That a real shame. The colleges pushing programming look down
their nose at BASIC to justify their existence. A five year old
can learn to program a Maximite. In fact, once you learn it, you
can explores all sorts of obscure equations and get an A in college math
and physics for that matter. A tremendous educational  tool.

Paul Lamar

   Paul, how complex would the EFI system be, with using the MaxiMite. Open or closed loop? I know we talked about EcoTrons  wide band sensor and controller, a while back.

   Steve Carlisle

   You can make it as complex as you wish :-)
   I would keep it simple at first and then try changes or improvements  by trial an error.
   That is very educational.

   As far as understanding obscure physical equations the Maximite can
   out put tables in comma delimited form that can be loaded into
   most spread sheets and then plotted. This gives you a clear picture
   of the relations of all the factors to an idea, concept or physical
   phenomena. I have known and used this for at least 30 years.

   Merely looking at an equation does not do it for me. I want to explore
   the limits of the equation a concept of integral calculus that results
   in a much better understanding of a physical phenomena.

   This plot by Donald Crawford is a good example.

   Also BTW the data logging on the thousands of dollars Motec EFI system
   is quite complicated to extract. The Maximite is super simple.
   You extract the 32 gig SD Card and read it in your note book computer.
   All the data is stored as simple ASCII text.

   There are dozens of micro computer programming systems.
   Why they do not copy the Maximite system is shear stupidity.


   Paul Lamar


Closed loop requires an Oxygen sensor in the exhaust. The lead in avgas will "kill" it, thus if you will probably use avgas stay with open loop. The sensor mearly trims the fuel injection amounts. Economy is better than when using a carburettor, but not as good as the closed loop systems. If you use something to lean the engine you are running outside closed loop parameters.

Dale Davies

I don't think this is correct. Recent O2 sensor have gone beyond that as I recall.

Paul Lamar

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