Pocket and Rest Pocket in RC14 has something wrong

MillMage Software Questions
1

I was reading a post about pocketing in the V1e forum and decided to check a previous project I had done. It looks normal in RC13, but the preview in RC14 is missing A LOT of detail. What changed that made such a difference in RC14?

RC13:

Screenshot 2026-02-08 at 9.40.45 AM
Screenshot 2026-02-08 at 9.40.45 AM1920×1243 844 KB

RC14:

Screenshot 2026-02-08 at 9.43.47 AM
Screenshot 2026-02-08 at 9.43.47 AM1920×1243 548 KB

Here is the mage file:

WillowCJ-LG.mage (1.0 MB)

2

I see the same thing in Preview, but it may be due to the message that popped up:

Pocket and Rest
Pocket and Rest1159×994 258 KB

I suggest fixing these errors and trying again.

3

So I guess RC13 can create the pockets with those errors and RC14 can’t.

IMG_1008
IMG_10081920×1224 993 KB

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4

This will happen if you have a larger endmill or you have resized and reduced the image size. Both will cause the the sides of the shape to be too small for the endmill causing the exact result you are showing.

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5

Unfortunately, increasing just the tree 1.5x did not eliminate the errors. This may be something the Lightburn team needs to look at.

I will play with it later today to see what I can discover.

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6

I didn’t change anything in the file. The preview is the same file in RC13 and RC14. I don’t remember which RC I used last year to actually cut out the project in the picture.

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7

I am bring @JohnJohn in on the conversation. I think this is something that needs a closer inspection. :nerd_face:

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8

Thanks for the heads up. I’ll look into it.

3 Likes
9

I think what’s “wrong” is that we’re now properly computing the radius of the ball mill at the selected depth, and previously we weren’t. You asked for a pocket, using a 1.5mm ball mill bit, and gave this geometry:

image
image999×544 43.4 KB

image
image1386×415 51.9 KB

image
image1095×467 48.3 KB

image
image1106×444 47.1 KB

You’re trying to pocket a whole bunch of places where the chosen bit simply won’t fit, and clearly didn’t fit in the previous version screen shot you showed - Look at the lower part of the ‘s’ in ‘us’:

image
image255×119 57.7 KB

There’s no hole there because it was wiped out by running the shapes anyway. The new version is actually working more correctly, reporting that in many of your shapes, the bit is too large to fit into the geometry you’ve provided.

I suspect you’re used to V-carving, and we’re not done that one yet. :slight_smile:

2 Likes
10

Thank you Oz for the explanation. I really appreciate it. I have really enjoyed using MillMage!

11

No problem - And, looking at your bits, they’re labeled “ball mill” but they’re actually V bits with a ball tip, but the same issues will apply.

If you run over the exact same vectors with a Profile pass, set to “Along line” it will likely give you the same result you had before. This is just the tree, with a profile pass only - look at the leaves - they’re basically the same as you had before:

image
image1097×1018 404 KB

But you can see in the “trunk” of the tree, where the bit actually fits, you’d need to pocket that as well to get the same look. Another approach would just be to offset the entire tree shape by 0.75mm (or a teeny bit more) to make sure it was able to fit a 1.5mm bit everywhere - that would also give you basically what you had before.

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12

And thank you Britt for pointing this out. This is the kind of feedback the Lightburn team needs. And I get to learn more about MillMage. :grin:

3 Likes