This works, but I’m wondering if I set the values correctly. The v-bit says it’s 15 degrees and that the tip is .1 mm. I know those parts are right, but would anything else need to be changed?
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F(xy) is 4800mm/min and F(z) is 2400mm/min. These are the feed speeds and both seem a bit fast to me, especially the Z value because the bit is going to be getting bigger the deeper you go. I guess they would both depend on how deep you plan to mill with it.
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Diameter is the bit eg 1/8" this get used to calculate the angled faces, the feedrates you have are entirely too fast. I have the Z axis firmware limited to 8.4 or 30 depending, 2-5 is common. 80??? start at 8 and maybe work up, your depth is super shallow. You want to start as deep as possible and slow to make use of your bit and work the speed up from there. Otherwise you will kill the first 1mm of your bit quickly and have the entire thing left sharp in the trashcan.
I really doubt you have a 15 degree bit, that would look like a taper bit. This is what a 45 looks like https://vicious1-com.myshopify.com/collections/sharp-stuff/products/1-8-45-degree-v-bit It is the angle the faces form, the v angle.
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The speed was fine considering how shallow it was cutting, however, I don’t trust the machine at that speed after watching it, it was quite jerky. It would probably wear itself out far quicker than desired.
It was going to take something like 30 hours to carve a 5 cm tall shape, so I canceled it. I can clearly see now that slowing it down and carving deeper would work much better.
I posted this after that short bit of carving thinking some other setting was missing. Ah, not only do we need to learn by material, but each kind of bit has a set of tricks too. Having only used an end mill and a ball nose so far, they were quite similar to each other. The v-bit is totally different.
I was wrong on the 15 degrees too, but it is 20 according to the documentation. They’re way pointier than the 45-degree one posted above. Thanks for all the feedback.
Edit: I’ve read so many posts telling people to cut slower and deeper and somehow I inverted that to faster and shallower. 
The image shows how it was doing which seems fine around the head (it was doing the roughing), but I think it was messing up the tail… hard to be sure since that part is lower than the rest and maybe it would have eventually been ok.
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These steppers lose a bunch of power at higher RPM’s you are very likely to skip a step at 80mm/s, If you want a faster cut you should change the pulleys to 20’s or bigger.