My Hobbies - Circad Course - Lesson 11
Printing and Photogravure

Parabola

Barra Colore



To print a pcb use FP. The form will show the circuit layers (on the left you can see an example token from a .pcb file, but it's the same thing for the .sch files). Every layer is followed by a partially or fully filled rectangle.

When you print your artwork, every layer will have the color you can see into the rectangle. The color can be modified using the relative cursors. To do a layer not printable (disabled) you must click on its color rectangle to have it half filled, or to select the Disabled option. The layer colors will have the video colors if you click the FASC button.

To print any area of your files you must select the "Print rect" box, using the "Input X/Y Min/Max" fields to enter the area coordinates (in mils). If you select a rectangle block, with you can obtain the same result. In this case select, as block reference point, the left bottom vertex of the block. You can print the work oversized or resized selecting an appropriate value for the "Scaling Factor" field, respectively using a valore bigger or smaller of 1.0000. To obtain a mirror, negative and/or centered image you can use the relative option boxes.

To not print some pcb elements you must simply deselect the Pads / Via / Holes / Tracks boxes. To obtain a very good quality print you should use the 8 Bit color depth value.

As print file format you must use the "DIB" option. Use a different option if you have printer problem. To print the work as a picture file use the "BMP to Disk" option.

The "Layer Stackup" field must be used to define the first printed layer. Over this layer Circad will print all the other layers. So, selecting the value "8" the program will print, first, the "Bottom Copper" layer, then the layer number 9,10,11, ... , 253, 254, 255, 0, 1, 2, ... and, last, the layer number 7. So, the layer number 7 will be printed over the layer number 8, hiddening it.

Once you've print the pcb on special sheet, then you have to do the photogravure.



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