Fagor 8070 BL - Spline Interpolation (Akima)

Programming manual.
CNC 8070
STATEMENTS AND INSTRUCTIONS
22.
Programming statements
·411·
(REF: 1709)
22.1.14 Spline interpolation (Akima)
This type of machining adapts the programmed contour to a spline type curve that goes
through all the programmed points.
The contour to be splined is defined with straight paths (G00/G01). When defining an arc
(G02/G03), the spline is interrupted while machining it and it resumes on the next straight
path. The transitions between the arc and the spline is done tangentially.
#SPLINE ON
Activate spline adaptation.
When executing this instruction, the CNC interprets that the points programmed next are part
of the spline and begins making the curve.
The programming format is as follows:
#SPLINE ON
The machining of splines cannot be activated if tool radius compensation (G41/G42) with
linear transition between blocks (G137) or viceversa.
#SPLINE OFF
Cancel spline adaptation.
When executing this instruction, the CNC ends the spline and goes on machining as the path
were programmed.
The programming format is as follows:
#SPLINE OFF
The spline can only be canceled if at least 3 points have been programmed. When defining
the initial and final tangents of the spline, 2 points will be enough.
#ASPLINE MODE
Select type of tangent.
This instruction sets the type of initial and final tangents of the spline that determines the
transition from the previous and to the next path. It is optional; if not defined, the tangent is
calculated automatically.
The programming format is as follows:
#ASPLINE MODE [<initial> <, final>]
The initial and final tangent of the spline may take one of the following values. If not
programmed, it assumes a value of 1.
The dashed line shows the programmed profile. The solid line shows the spline.
Parameter Meaning
<initial> Initial tangent.
<final> Final tangent