how to transform your old electric oven into a modern digital thermostat controlled one (aka: the meringues solution!)

If you ever tried to cook meringues you knot that it's almost impossible if your oven can't keep a constant temperature over the time. Modern electric ovens have a digital integrated thermostat so to achieve that goal with no efforts, but if you like meringues and you have an old oven you could probably feel in troubles.. old thermostats only have a graduated scale, and the only way to maintain the exact temperature is to put a thermometer into the oven, then set the knob consequentially.
A better solution is to buy a digital temperature controller with a thermocouple, and connect it so it will regulate the oven in place of you. You need few tools for this project.
To avoid to cut the power cable of the oven you need to use a female socket, and connect it to the thermo controller with some wires. So you need a pair of screwdrivers and a wire stripper.

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How to Use the DRO (Digital Read-Out)

Did you know there is a calculator on the system.  I DIDN'T.  I kept running back to the desk and doing some quick calculations on paper or the calculator on a computer until I found this handy little function.

The calculator can be accessed pressing CALC on the keyboard.  AFTER hitting CALC select the softkey STANDARD/TRIG.  Then use the keyboard to input numbers and operators (e.g. addition, subtraction, etc.) like a normal calculator. 

On this model, the trick is to remember to hit the "STANDARD/TRIG" button to access the calculator.  It is a time saver.

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Physical Reconfiguration of Digital Anatomy

First, insert an image (Figure 1) into Rhino using the "picture frame" command.  This will result in an image that is able to be moved and scaled.  (Figure 2)

Use "control point curve" to draw a line around the object you wish to make 3D, in my case it was my heart and aorta.  (Figure 3)  It is important to turn Osnaps off for this, so that the line will be on one plane and not snap elsewhere where you don't want it.  Use the "patch" command to create a surface from the closed line, and then use "extrude surface" to create an extension that can hold volume.  (Figure 4)  Make sure that 'cap' is selected, so that the extruded ends are capped and the figure is solid.  

Insert another image, with the same "picture frame" command.  This image should be another view of the same object.  For example, if the first image was of the front of the object, the second image should be of the side of the object.  Rotate the second image 45 degrees.  (Image 5)

Perform the same process on the second image: control point curve, patch, extrude surface.  You now have two solid objects.  (Image 6)  Depending on where you place the second image, the tracing line may or may not be directly on the image.  If it is not, the process works just as well.  However, for patch to work correctly, make sure that the line is not curved through multiple coordinate planes.  

Arrange these two objects so that they intersect one another.  (Image 7)  

Use "Boolean2Objects" and select 'intersection.'  This should result in a three-dimensional object that is roughly the shape of your desired piece.  (Image 8)

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