Micro V-Mill Engraving On Brass Help

1

Okay here is the v-mill dimensions:

2" long x .125" wide, Split length .4", Tip width .002" , angle 30 deg

In carbide create while adding a new v-mill to my tool library where it says to put the tool diameter in if I put .125" in the box wit flute length and angle my pocket tool paths are almost non existent.

If I put the tip width in the diameter box then it looks good. Is this the right way of doing this?

I am trying to engrave some brass to make rings out of and i have had this question on my mind ever since.

Also if someone could help me calculate the speeds and feeds for this bit it would be appreciated.

2

so no one can help? ave any of y’all tried engraving a coin?

3

Heres an engraved Coin.
These were processed in Meshcam Pro from a jpeg.
I used a 1/32 ball for these at 6 ipm and 9500rpm

IMG_20150628_174410.jpg888×888 365 KB

As for your Carbide Create setup question, I would disregard the tip width (.002") at this point.
Heres some screenshots of my setup:
Screenshot 2016-03-02 18.58.35.png1317×1042 121 KB

And the preview

Screenshot 2016-03-02 18.56.58.png1054×973 330 KB

Have you run a test yet?
Before diving straight into brass, I recommend using some modeling board, I prefer Renshape.

4

Here is some examples of how they turn out with the .002" tip width in the diameter box. Once again I am using pocket operation. Also for that bit size the speeds and feeds do not automatically set or will cause errors if not adjusted manually.

IMG_0994.JPG2448×3264 1010 KB
IMG_1009-1.JPG3264×2448 1.26 MB

IMG_0996-1.JPG3264×2448 1.04 MB
IMG_1008-1.JPG3264×2448 1.18 MB

Uploading… Uploading…

5

Impressive !
How did you turn it into a ring ?

6

These look great! Just curious if you’d had any new break throughs with engraving since you posted this. I’m about to order some small bits to start engraving and I have an idea just not sure exactly what to get and then there will be all the trouble shooting with CC like you were running in to. sigh…