If you have a dual extruder, you will need to specify to the 3D printer which head you want to use (right/ left).

When you specify that you want Raft or Support, the first thing the 3D printer will do is to create a layer for the model to sit on. Which will make it easy for you to remove the model once it is finished, but it also provides support for the model so that the first layers of your model does not sit directly on the platform.

Many 3D printers only understand the language of GCode. So before being able to print you will need to convert your code existing 3D code (ie. STL.) into GCode. ReplicatorG will do that for you if you have that software. WARNING: Make sure that before converting to GCode that you use the correct specs of your printer when entering it to the software for the first time. If you don't, you might risk damaging your printer by having the nozzle scratch the platform or the motors getting damaged.

Support material is an option which specify whether your model needs "full support", "exterior support" or no support "none". If you're printing a cube for example, the support is not needed (so choose the option: None) because layers will be built on top of eachother. Other options are "Exterior Support" and "Full Supprt". Exterior support is when you need support only from the bottom for example when making a table model. Full support is when need your object to be supported in different areas. If you're unsure you can choose "Full Support" and see how it goes.WARNING: Before printing, ensure that your model is "Flat" to the platform by choosing "Put on Platform" in the "Move" option. If the model is not flat to the platform, the printer will start printing in areas above/below the platform where there is no support and therefore ruin your model or printer.

The feedrate is the speed at which the extruder is moving while releasing the filament (usually around 40mm/s). Between 0-20 is slow. 40 to 79 mm/s is fast. +80 is accelerated. Make sure your printer can tolerate accelerated printing before choosing that option.

The flowrate is the rate at which the extruder is releasing the filament (usually it should match the flow rate). Between 0-20 is slow. 40 to 79 is fast. +150 is accelerated. Make sure your printer can tolerate accelerated feedrate before choosing that option, because that could jam your nozzle.

That is the percentage (%) by which your model will be filled inside. For example imagine you're creating a cube. If you specify 10% objct infill, that means that your cube will be almost hollow from the inside. It is a good idea because it will save you from wasting filament and time. However if you want a strong cube, you might need to go higheer than 10%.

This one is measured in millimeter (mm). It represents the height of each layer. A 3D model is made of several layers depending on how high it is. The default is usually around 0.20 mm per layer. That means if you are making a box 1mm high, it will be made of 5 layers (0.20 mm x 5 = 1 mm). If you choose that your layer is .033 mm, then your 1mm box will only contain 3 layers of 0.33 mm. Which means that you will be able to build a box faster if you choose 0.33 mm layer height, but with this height some round objcts may not look smooth enough. So the smoother you want an object to be, the lower the layer height should be.

This setting determines the temperature of the nozzle which should be based on the melting point of the filament. If you're using ABS fillament, the nozzle temperature should be between 215C to 230C to allow the ABS to melt. If you're using PLA fillament, the nozzle temperature should be much lower starting from 180C to 200C.

This setting determines the temperature of the heaed platform which should be based on the filament you are using. If you're using ABS fillament, the platform temperature should be between 80C to 120C (default is 110C). If you're using PLA fillament, the platform temperature should be much lower starting from 60C to 100C. Note that with ReplicatorG you will not need to specify the platform temperature, since it will be tied to the nozzle temperature.

View is the option which allows you to view the object from different angles. XY is when you view the object from above. XZ is when you view the object from the front side. YZ is when you view the object from the left side. The Default option is when you view the model midway slightly from the side and above.

That's when you move your object to different place on the platform. X (left to right) Y (back to front) Z (up and down). You can also "Center" your object. Make sure you choose "Put on Platform" option, to flatten the model to the platform. That way there will be no gap between the platform and the design.

That's when you rotate your object to different directions on the platform. X (left to right) Y (back to front) Z (up and down). You can also "Lay Flat" your object, which will ensure that the model is not tilted but straight.

That's when you increase or decrease the size of your object. If you want the model to be decreased in half, choose 0.5. If you want it to double in size choose 2 and so on and click the "Scale" button.

It allows you to duplicate one side of your model or all sides.

That will give the command to the software to generate the model into a language that the 3D printer will understand. This process will take some time depending on the complexity of the model and how many layers it contains. Sometime it may take more than an hour to generate the GCode, or less than a minute.