How to create 3D shape via a math function?
- steve714
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The equation is in 2D, and it needs to be set up along the x and z axis, then rotated symmetrically around the z-axis in the x-y plane to create the 3D image. The result would look like a sombrero hat.
It may be possible to create the 3D image in another program like MathCad, but how could I get it into AXiS (or PythonVCP)?
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- BigJohnT
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Inkscape has a plug in to create g-code do a search on the forum for it... it might do what you want.
John
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- steve714
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Steve
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- andypugh
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I wish to machine a math sculpture in 3d, for example, a sinc function [z=(sin(x)/(x)].
The equation is in 2D, and it needs to be set up along the x and z axis, then rotated symmetrically around the z-axis in the x-y plane to create the 3D image. The result would look like a sombrero hat.
With a milling machine, and centred at (0,0)
#1 = 0.01
O100 while [#1 LT 1800]
G0 Z1
G0 X[#1 / 400]
G1 F1 Z[SIN[#1]/#1]
G3 F1 I0 J0
#1 = [#1 + 5]
O100 ENDWHILE
M2
(Never underestimate the power of raw G-code)
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- steve714
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It took awhile to try your code, but I could not get AXIS to stop complaining about the G3 line of code.
I also tried G3 F12 X0 Y0 I0 J0 which generated a new set of errors. Other attempts at displaying the toolpaths in NCPlot, CamBamFree and Discriminator did not succeed either.
Still a GCODE newbie, but having fun trying! Steve
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- BigJohnT
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John
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- Rick G
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#1 = 0.01
;O100 while [#1 LT 1800]
O100 while [#1 LT 180]
G0 Z1
G0 X[#1 / 400]
G1 F100 Z[SIN[#1]/#1]
;G3 F100 I0 J0
G3 F100 I0.5 J0.5
#1 = [#1 + 5]
O100 ENDWHILE
M2
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- dgarrett
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- andypugh
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I should have pointed out that it was untested code, written off the top of my head, with no access to a CNC machine at the time.It took awhile to try your code, but I could not get AXIS to stop complaining about the G3 line of code.
The problem is that I forgot that IJ format arcs are incremental by default. The code I showed will work if you put G90.1 at the beginning. Alternatively make the G3 line say
G3 F1 I [#1 / -400]
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- Rick G
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That looks cool. I may just have to add that to my machine!
Rick G
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