Trouble Milling A Sphere!!!!

[gallzer]

Hey guys

Can anyone help me i'm trying to mill 6 concave half spheres into a block of aluminium.

The radius of the sphere is 29.609mm
I'm using a 12.7mm ball nose cutter

I'd be very grateful if anyone has a heidenhain conversational program which could help me.

Thanks a lot Gallzer

[Mitsui Seiki]

I made this today:
It will need adjustments though.
It gives you a general idea of what it looks like.
I'm sorry about this long post.

Edit:A made a small error. I've corrected it now.

 g0g90g54x0y0t4s2000m3
g43z100h4m8
g1x0y14.8f500
z-0.1f150
g2x0y14.8i0j-14.8
g0z2
g1x-14.8y0f150
z-0.1
g3x14.8y0i14.8k0
g0z2
g1x-14.77y0.92f150
z-0.1
g3x14.77y0.92i14.77k0
g0z2
g1x-14.685y1.84f150
z-0.1
g3x14.685y1.84i14.685k0
g0z2
g1x-14.54y2.76f150
z-0.1
g3x14.54y2.76i14.54k0
g0z2
g1x-14.335y3.68f150
z-0.1
g3x14.335y3.68i14.335k0
g0z2
g1x-14.065y4.6f150
z-0.1
g3x14.065y4.6i14.065k0
g0z2
g1x-13.73y5.52f150
z-0.1
g3x13.73y5.52i13.73k0
g0z2
g1x-13.325y6.44f150
z-0.1
g3x13.325y6.44i13.325k0
g0z2
g1x-12.84y7.36f150
z-0.1
g3x12.84y7.36i12.84k0
g0z2
g1x-12.265y8.28f150
z-0.1
g3x12.265y8.28i12.265k0
g0z2
g1x-11.59y9.2f150
z-0.1
g3x11.59y9.2i11.59k0
g0z2
g1x-10.795y10.12f150
z-0.1
g3x10.795y10.12i10.795k0
g0z2
g1x-9.855y11.04f150
z-0.1
g3x9.855y11.04i9.855k0
g0z2
g1x-8.715y11.96f150
z-0.1
g3x8.715y11.96i8.715k0
g0z2
g1x-7.29y12.88f150
z-0.1
g3x7.29y12.88i7.29k0
g0z2
g1x-5.345y13.8f150
z-0.1
g3x5.345y13.8i5.345k0
g0z2
g1x-1.535y14.72f150
z-0.1
g3x1.535y14.72i1.535k0
g0z2
g1x-14.8y0f150
z-0.1
g3x14.8y0i14.8k0
g0z2
g1x-14.77y-0.92f150
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g3x14.77y-0.92i14.77k0
g0z2
g1x-14.685y-1.84f150
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g3x14.685y-1.84i14.685k0
g0z2
g1x-14.54y-2.76f150
z-0.1
g3x14.54y-2.76i14.54k0
g0z2
g1x-14.335y-3.68f150
z-0.1
g3x14.335y-3.68i14.335k0
g0z2
g1x-14.065y-4.6f150
z-0.1
g3x14.065y-4.6i14.065k0
g0z2
g1x-13.73y-5.52f150
z-0.1
g3x13.73y-5.52i13.73k0
g0z2
g1x-13.325y-6.44f150
z-0.1
g3x13.325y-6.44i13.325k0
g0z2
g1x-12.84y-7.36f150
z-0.1
g3x12.84y-7.36i12.84k0
g0z2
g1x-12.265y-8.28f150
z-0.1
g3x12.265y-8.28i12.265k0
g0z2
g1x-11.59y-9.2f150
z-0.1
g3x11.59y-9.2i11.59k0
g0z2
g1x-10.795y-10.12f150
z-0.1
g3x10.795y-10.12i10.795k0
g0z2
g1x-9.855y-11.04f150
z-0.1
g3x9.855y-11.04i9.855k0
g0z2
g1x-8.715y-11.96f150
z-0.1
g3x8.715y-11.96i8.715k0
g0z2
g1x-7.29y-12.88f150
z-0.1
g3x7.29y-12.88i7.29k0
g0z2
g1x-5.345y-13.8f150
z-0.1
g3x5.345y-13.8i5.345k0
g0z2
g1x-1.535y-14.72f150
z-0.1
g3x1.535y-14.72i1.535k0
g0g40z50
x0y0m5m9
m30

[Mitsui Seiki]

Yet another huge post!!
Kick me out if you want.
This is a better program.

 g0g90g54x0y0t4s2000m3
g43z100h4m8
g1x0y14.8f500
z-0.92f150
g2x0y14.8i0j-14.8
g1x0y14.77
z-1.84
g2x0y14.77i0j-14.77
g1x0y14.685
z-2.76
g2x0y14.685i0j-14.685
g1x0y14.54
z-3.68
g2x0y14.54i0j-14.54
g1x0y14.335
z-4.6
g2x0y14.335i0j-14.335
g1x0y13.73
z-5.52
g2x0y13.73i0j-13.73
g1x0y13.325
z-6.44
g2x0y13.325i0j-13.325
g1x0y12.84
z-7.36
g2x0y12.84i0j-12.84
g1x0y12.265
z-8.28
g2x0y12.265i0j-12.265
g1x0y11.59
z-9.2
g2x0y11.59i0j-11.59
g1x0y10.795
z-10.12
g2x0y10.795i0j-10.795
g1x0y9.855
z-11.04
g2x0y9.855i0j-9.855
g1x0y8.715
z-11.96
g2x0y8.715i0j-8.715
g1x0y7.29
z-12.88
g2x0y7.29i0j-7.29
g1x0y5.345
z-13.8
g2x0y5.345i0j-5.345
g1x0y1.535
z-14.72
g2x0y1.535i0j-1.535
g0z50
x0y0
g40
m30

[WayneHill]

Mitsui Seiki,

Välkommen to the group. My wife is part Swedish. Her grandmother was 100% Swedish.

To enclose long postings - Use Brackets around the command "code" and "/code"

<code>
Replace <> with []
</code>

g0g90g54x0y0t4s2000m3
g43z100h4m8
g1x0y14.8f500
z-0.1f150
g2x0y14.8i0j-14.8
g0z2
g1x-14.8y0f150
z-0.1
g3x14.8y0i14.8k7.4
g0z2
g1x-14.77y0.92f150
z-0.1
g3x14.77y0.92i14.77k7.385
g0z2
g1x-14.685y1.84f150
z-0.1
g3x14.685y1.84i14.685k7.3425
g0z2
g1x-14.54y2.76f150
z-0.1
g3x14.54y2.76i14.54k7.27
g0z2
g1x-14.335y3.68f150
z-0.1
g3x14.335y3.68i14.335k7.1675
g0z2
g1x-14.065y4.6f150
z-0.1
g3x14.065y4.6i14.065k7.0325
g0z2
g1x-13.73y5.52f150
z-0.1
g3x13.73y5.52i13.73k6.865
g0z2
g1x-13.325y6.44f150
z-0.1
g3x13.325y6.44i13.325k6.6625
g0z2
g1x-12.84y7.36f150
z-0.1
g3x12.84y7.36i12.84k6.42
g0z2
g1x-12.265y8.28f150
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g3x12.265y8.28i12.265k6.1325
g0z2
g1x-11.59y9.2f150
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g3x11.59y9.2i11.59k5.795
g0z2
g1x-10.795y10.12f150
z-0.1
g3x10.795y10.12i10.795k5.3975
g0z2
g1x-9.855y11.04f150
z-0.1
g3x9.855y11.04i9.855k4.9275
g0z2
g1x-8.715y11.96f150
z-0.1
g3x8.715y11.96i8.715k4.3575
g0z2
g1x-7.29y12.88f150
z-0.1
g3x7.29y12.88i7.29k3.645
g0z2
g1x-5.345y13.8f150
z-0.1
g3x5.345y13.8i5.345k2.6725
g0z2
g1x-1.535y14.72f150
z-0.1
g3x1.535y14.72i1.535k0.7675

g0z2
g1x-14.8y0f150
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g3x14.8y0i14.8k7.4
g0z2
g1x-14.77y-0.92f150
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g3x14.77y-0.92i14.77k7.385
g0z2
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g0z2
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g0z2
g1x-14.335y-3.68f150
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g3x14.335y-3.68i14.335k7.1675
g0z2
g1x-14.065y-4.6f150
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g3x14.065y-4.6i14.065k7.0325
g0z2
g1x-13.73y-5.52f150
z-0.1
g3x13.73y-5.52i13.73k6.865
g0z2
g1x-13.325y-6.44f150
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g3x13.325y-6.44i13.325k6.6625
g0z2
g1x-12.84y-7.36f150
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g3x12.84y-7.36i12.84k6.42
g0z2
g1x-12.265y-8.28f150
z-0.1
g3x12.265y-8.28i12.265k6.1325
g0z2
g1x-11.59y-9.2f150
z-0.1
g3x11.59y-9.2i11.59k5.795
g0z2
g1x-10.795y-10.12f150
z-0.1
g3x10.795y-10.12i10.795k5.3975
g0z2
g1x-9.855y-11.04f150
z-0.1
g3x9.855y-11.04i9.855k4.9275
g0z2
g1x-8.715y-11.96f150
z-0.1
g3x8.715y-11.96i8.715k4.3575
g0z2
g1x-7.29y-12.88f150
z-0.1
g3x7.29y-12.88i7.29k3.645
g0z2
g1x-5.345y-13.8f150
z-0.1
g3x5.345y-13.8i5.345k2.6725
g0z2
g1x-1.535y-14.72f150
z-0.1
g3x1.535y-14.72i1.535k0.7675
g0g40z50
x0y0m5m9
m30

[Mitsui Seiki]

Ok.Thanks,Wayne.
From which part of Sweden did her grandmother come from?

[gallzer]

Thanks for the reply, only prolem is i've not done much of the g codes etc!

I'll give it a go and let you know how i fair.

[Kiwi]

Not sure if your Heidenhain likes this code.
You will need to add Feed and Speed etc.

Looking at Wayne's code, not sure he has the diameter correct?

G01 X22.3754 Y0 Z0
G03 X22.3754 Y0 I-22.3754 J0
G01 X22.5603 Y0 Z-0.6918
G03 X22.5603 Y0 I-22.5603 J0
G01 X22.7238 Y0 Z-1.389
G03 X22.7238 Y0 I-22.7238 J0
G01 X22.8657 Y0 Z-2.0909
G03 X22.8657 Y0 I-22.8657 J0
G01 X22.986 Y0 Z-2.7968
G03 X22.986 Y0 I-22.986 J0
G01 X23.0845 Y0 Z-3.506
G03 X23.0845 Y0 I-23.0845 J0
G01 X23.1611 Y0 Z-4.218
G03 X23.1611 Y0 I-23.1611 J0
G01 X23.2157 Y0 Z-4.932
G03 X23.2157 Y0 I-23.2157 J0
G01 X23.2484 Y0 Z-5.6474
G03 X23.2484 Y0 I-23.2484 J0
G01 X23.259 Y0 Z-6.3634
G03 X23.259 Y0 I-23.259 J0
G01 X23.2476 Y0 Z-7.0794
G03 X23.2476 Y0 I-23.2476 J0
G01 X23.2141 Y0 Z-7.7947
G03 X23.2141 Y0 I-23.2141 J0
G01 X23.1586 Y0 Z-8.5086
G03 X23.1586 Y0 I-23.1586 J0
G01 X23.0812 Y0 Z-9.2205
G03 X23.0812 Y0 I-23.0812 J0
G01 X22.9819 Y0 Z-9.9296
G03 X22.9819 Y0 I-22.9819 J0
G01 X22.8608 Y0 Z-10.6354
G03 X22.8608 Y0 I-22.8608 J0
G01 X22.718 Y0 Z-11.3371
G03 X22.718 Y0 I-22.718 J0
G01 X22.5538 Y0 Z-12.0341
G03 X22.5538 Y0 I-22.5538 J0
G01 X22.3681 Y0 Z-12.7257
G03 X22.3681 Y0 I-22.3681 J0
G01 X22.1612 Y0 Z-13.4113
G03 X22.1612 Y0 I-22.1612 J0
G01 X21.9333 Y0 Z-14.0901
G03 X21.9333 Y0 I-21.9333 J0
G01 X21.6847 Y0 Z-14.7617
G03 X21.6847 Y0 I-21.6847 J0
G01 X21.4155 Y0 Z-15.4252
G03 X21.4155 Y0 I-21.4155 J0
G01 X21.1259 Y0 Z-16.0801
G03 X21.1259 Y0 I-21.1259 J0
G01 X20.8164 Y0 Z-16.7259
G03 X20.8164 Y0 I-20.8164 J0
G01 X20.4871 Y0 Z-17.3618
G03 X20.4871 Y0 I-20.4871 J0
G01 X20.1384 Y0 Z-17.9872
G03 X20.1384 Y0 I-20.1384 J0
G01 X19.7706 Y0 Z-18.6016
G03 X19.7706 Y0 I-19.7706 J0
G01 X19.3841 Y0 Z-19.2044
G03 X19.3841 Y0 I-19.3841 J0
G01 X18.9792 Y0 Z-19.7951
G03 X18.9792 Y0 I-18.9792 J0
G01 X18.5563 Y0 Z-20.373
G03 X18.5563 Y0 I-18.5563 J0
G01 X18.1159 Y0 Z-20.9375
G03 X18.1159 Y0 I-18.1159 J0
G01 X17.6582 Y0 Z-21.4883
G03 X17.6582 Y0 I-17.6582 J0
G01 X17.1838 Y0 Z-22.0247
G03 X17.1838 Y0 I-17.1838 J0
G01 X16.6932 Y0 Z-22.5463
G03 X16.6932 Y0 I-16.6932 J0
G01 X16.1867 Y0 Z-23.0525
G03 X16.1867 Y0 I-16.1867 J0
G01 X15.6648 Y0 Z-23.5428
G03 X15.6648 Y0 I-15.6648 J0
G01 X15.1282 Y0 Z-24.0169
G03 X15.1282 Y0 I-15.1282 J0
G01 X14.5771 Y0 Z-24.4742
G03 X14.5771 Y0 I-14.5771 J0
G01 X14.0123 Y0 Z-24.9144
G03 X14.0123 Y0 I-14.0123 J0
G01 X13.4342 Y0 Z-25.337
G03 X13.4342 Y0 I-13.4342 J0
G01 X12.8433 Y0 Z-25.7415
G03 X12.8433 Y0 I-12.8433 J0
G01 X12.2403 Y0 Z-26.1277
G03 X12.2403 Y0 I-12.2403 J0
G01 X11.6256 Y0 Z-26.4951
G03 X11.6256 Y0 I-11.6256 J0
G01 X11 Y0 Z-26.8434
G03 X11 Y0 I-11 J0
G01 X10.3639 Y0 Z-27.1724
G03 X10.3639 Y0 I-10.3639 J0
G01 X9.718 Y0 Z-27.4815
G03 X9.718 Y0 I-9.718 J0
G01 X9.0629 Y0 Z-27.7707
G03 X9.0629 Y0 I-9.0629 J0
G01 X8.3992 Y0 Z-28.0395
G03 X8.3992 Y0 I-8.3992 J0
G01 X7.7275 Y0 Z-28.2878
G03 X7.7275 Y0 I-7.7275 J0
G01 X7.0485 Y0 Z-28.5153
G03 X7.0485 Y0 I-7.0485 J0
G01 X6.3629 Y0 Z-28.7217
G03 X6.3629 Y0 I-6.3629 J0
G01 X5.6712 Y0 Z-28.907
G03 X5.6712 Y0 I-5.6712 J0
G01 X4.9741 Y0 Z-29.0709
G03 X4.9741 Y0 I-4.9741 J0
G01 X4.2723 Y0 Z-29.2133
G03 X4.2723 Y0 I-4.2723 J0
G01 X3.5664 Y0 Z-29.3339
G03 X3.5664 Y0 I-3.5664 J0
G01 X2.8572 Y0 Z-29.4328
G03 X2.8572 Y0 I-2.8572 J0
G01 X2.1453 Y0 Z-29.5099
G03 X2.1453 Y0 I-2.1453 J0
G01 X1.4313 Y0 Z-29.5649
G03 X1.4313 Y0 I-1.4313 J0
G01 X0.716 Y0 Z-29.598
G03 X0.716 Y0 I-0.716 J0

Sorry, don't know how to post a scroll text box.

[Mitsui Seiki]

It isn't Waynes code so don't blame him.It was me.
And you're right . I went for 29.61 Diameter,not radius.I'm, sorry about that.
Everything x2!!!
Besides, I made it just so that you can get a general idea of what it can look like.

[Kiwi]

Wayne, Sorry. I just scrolled up and saw your name under a box with text.

Mtsui Seiki, can you post a pic of your tool path as I couldn't follow the directions. Your i & k and i & j.
I use a Fagor controller which appears to be quite different to Heidenhain

[Mitsui Seiki]

This is the only pic I can give you with the I - K path.
I didn't make the program using a Cad/Cam.

[gallzer]

cheers kiwi

Heidenhain doesn't quite work like that but it's easy enough to alter the program. i've used fanuc and heidenhain controls but heidenhain is so much easier and faster to program, the problem was the radius and depths per pass.

Thanks again

[WayneHill]

Originally Posted by Mitsui Seiki Ok.Thanks,Wayne. From which part of Sweden did her grandmother come from?

Uppsala. My mother-inlaw has cousins living there and goes back to Sweden to visit.