Trying to cut a triangular slot like picture
Is there a type of champher bit or something I can move into the cut over several passes? I just can’t find a bit that says it will cut this profile. Just need 5-10 mm deep.
In wood…
Is there a type of champher bit or something I can move into the cut over several passes? I just can’t find a bit that says it will cut this profile. Just need 5-10 mm deep.
That looks an awful lot like a dovetail cutter. Maybe worth looking into 
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How long does this need to be?
In what material?
Does it need to move in, then out? Or is it a straight cut?
Could you annotate your drawing with dimensions?
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Actually it’s not a dovetail cutter unless you have one that can cut 45deg…
45 degrees is pretty common in metal. For wood I’m less certain.
But it turns out you can even get inverted 45 degree dovetails which are pretty interesting. Never seen one before looking them up today.
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For less exotic tooling, if you can rotate your part you could do this in two setups. The first being a slot, essentially providing relief for the second operation.
Second up would be tilting the workpiece and finishing the cut with a chamfering bit or something similar.
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There’s also a question of how accurate to the profile it has to be. If the angle could terminate in a square or ball profile instead of a sharp corner, you could just use bog standard tooling and step mill the angled plane.
What are the depths?
Which spindle do you have?
If you have a 65mm VFD w/ ER-16 collet (or 80 and ER-20) this might work:
HSS, not carbide but with careful management of feeds and speeds should cut well.
Can I use a metal cutter? I’m thinking this is my next experiment.
What about something like this?
https://www.highlandwoodworking.com/whiteside-chamfer-router-bit.aspx
You’d have to use a router unless you are brave. 
You can probably find one in 1/4" or 8mm shank as well.
if you rotate this work and hold it 112.5 degrees anti clockwise from how it is drawn above, you can use a regular vee cutter. These are readily available with a 45 degree angle.
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Jason, Tod: I LOVE that kind of thinking!
thats kinda my idea. sliding it in .05 inch at a time…
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Angling the stock to use a matching angle cutter is a really good idea. it would also make it much easier to approach in passes lowering z and measuring if the width and depth of the slot are critical.
To potentially make the cut sideways with a typical 45deg cutter (90deg included angle), it would need to also have a cutting edge on the top edge. Otherwise, it’s like trying to cut half a T-Slot on an edge sideways with a McFly. It can probably be done but not ideal.
Whichever bit is used, the angle will also determine the other geometry. If you want a 45 degree angle cut 10mm tall at its widest, it will also be 10 mm across the width because the 45deg triangle is half of a square.
My bandsaw would easily make that cut!
Easy to do with router set in a table. just a 45 degree bit.
Lots of good suggestions. If the OP still wants to cut it on the side, look into “birds mouth” router bits. One source: MLCS Birds Mouth Router Bits.
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Today I learned. Thanks for sharing that unique type of cutter, I’ve never heard of a birds mouth bit 
Just to circle back. I’ve cut a bunch of angled blocks on the Table saw, and used them as jigs to set the project in on the Shapeoko table. so this is definitely the way to go.
There is a lot more “jig making” on the shapeoko than i thought I would be doing, but in the end it can do some stuff that the rest of the tools in the shop can’t. Thanks everyone for the excelent ideas.
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For sure, there are several books on jig making and work holding.
As complexity of your design increases, the time spent thinking about jigs and such goes up disproportionally…it’s crazy how much extra effort a single angle can be 
It is good fun though and it tickles the problem solving part of the brain which can be nice (when there’s not an approaching deadline 
)
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