Double Side PCB: Making The PCB – The Ant Way

Double Side PCB: Making The PCB – The Ant Way

Hi guys, this is the second part of the double-sided
PCB creation tutorial. In the first video we generated the gcode
files to realize this circuit. And today we use The Ant to make it. So let’s start….. We are starting from a situation where we
already performed some preliminary operations. In order these operations were:
– Opening bCNC – Power on and connect to the machine
– Perform an Homing procedure – Set the X and Y working Zero
– Probe and set the Z working Zero. – Open the top G-Code file. If you have any doubts on how to perform any
of these operations, we leave a link in the cards to an useful playlist with videos that
describe them. Notice that we are using the new head with
the pre-connected probe cable. In any case remember to connect a probe terminal
to the surface of the board and, if you don’t have the preconnected probe cable, you need
to connect the second probe terminal to the bit before every probe and auto level operation. So, from this point, we get the margins, set
the grid spacing and launch the Scan procedure. Set the Z axis to zero again, at the center
of the grid, and also set there the zero of the Auto Level. Then we are ready to launch the milling procedure. When the milling procedure is done, we are
ready to make the alignment drill. But first a tool change is needed to insert
the drilling bit. As a consequence we perform a new probe to
set the new zero of the Z axis, and we load the top alignment drill g-code file. When you load the G-code file, answer NO to
every question, so that the bed levelling information are retained. Launch the alignment drill. bCNC needs to know the offset between the
tool and the camera to perform an optical alignment. This operation can be executed using an existing
hole or drilling a new hole on the board. In this case, we show the offset calibration
on an empty board. We drill an hole on the X-Y zero working position. In this point, we mark the position of the
spindle, in the Probe-Camera panel. Then we turn on the camera and align the center
of the crosshair circle to the center of the hole. At this point, we mark the camera position
in the Probe-Camera panel. To obtain always the maximum precision, we
suggest to execute this operation before every optical alignment. This phase starts after turning upside-down
the board and loading the bottom align drill g-code file. We switched on the camera, and we go in camera
mode pressing the button “Switch to” in the Probe-Camera panel. As stated in the previous video, we will use
the alignment drill to obtain the roto-translation information to orient all the bottom side
g-codes. To do this, for each hole, we align the crosshair
of the camera with the center of the hole, add an alignment point in the Probe-Probe
panel, and click on the relative G-code point on the screen. bCNC automatically snaps on the nearest point
in the G-Code. At the end, the roto-translation information
are calculated and stored in bCNC. At this point, we need to perform the Auto
Level on the bottom side, and we load the bottom profile g-code just to do that. As you will see, it’s the same procedure
made on the top surface, but preceded by the G-Code alignment, that is executed by pressing
the Orient button in the Probe-Probe panel. We load the bottom drill G-Code, press the
Orient button and start the drill operation. After a tool change to insert the milling
bit, and after having zeroed the tool, we load the bottom g-code file, press the
“Orient” button and start to mill. The last operation we execute is the board
profile cut. As usual, we change the bit with an appropriate
one, set the tool zero, load the bottom profile g-code file, press the Orient button, and
then start the cut operation. After the whole process, this is what we obtained. It may be necessary to use some fine grit
sandpaper to brush it lightly to deburr. So guys, we shown you one way to create this
kind of circuit but it’s not the only way. If you didn’t watch the first video you’ll
find it here!!!! Ah, well played! Ok, please subscribe

5 thoughts on “Double Side PCB: Making The PCB – The Ant Way”

  1. Is there a reason for drilling all the holes as first step on the other /second /bottom side? Why not on top side or as last step on bottom side?

Leave a Reply

Your email address will not be published. Required fields are marked *