Hello, new here. Just tried testing out the CNC on my first project and my v bit gave me some very uneven chamfers as you can see. Any idea on what may have caused this or how I can mitigate it in the future?
Any advice to a first-timer would be greatly appreciated.
-Doc
Share your project file. The picture tells us you have a concern, but it’s pretty much useless for diagnosis.
Here are a few things which could cause this:
Coin Thing.c2d (116 KB)
Yeah I’d have to agree Bozo. It feels like something is not flat and/or parallel somewhere.
The chamfer is a telltale sign because the depth change exaggerates the chamfer width so much.
If you’ve got a pair of calipers (if you don’t, you should get a pair 
) you can quickly measure the depth of the pocket in a few places as well.
I think you’ll find that the pocket is shallower on the side with the smaller chamfer and deeper on the side with the larger chamfer. (There are maybe scenarios where that’s not the case, but they seem unlikely)
On a Sidenote, thanks for sharing. Your photo has actually given me an idea for some fun optical illusion shenanigans I might try in a project 
As suggested above, one of the first things to check is your stock dimension’s. Is the height and width consistent along the full length of the stock? It looks like the pocket operation held a consistent Z depth for the coin slot.
Aside from comments about thickness and being flat, was the wood lined up to your machine X/Y ? I made a very shallow grid in my spoil board to ensure I am aligned to the X/Y, it had the side effect of ensuring my head height is consistent around the machine.
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