If you have a file to share, I can help you out when I get to work tomorrow. There's Lots of different ways to control that path including extending surfaces, direction, start point, and lead-in / lead-out arcs.

If your counterbore geo is on the same plane, just use the 2D helix bore path. Make sure you have Linerize helix's unchecked

Stock model, or select solid in the stock set-up area

That looks like one of the earlier models of the UMC. They were pretty slow for sure, the newer ones do move a Lot more efficiently.

https://www.gom.com/metrology-systems/atos.html You haven't used these then I guess. They are pretty incredible, also an incredible price tag

± .0001 bore? Sounds like that will be hard to control with a boring bar in Ti.

So there is no original model that they use to make the casting from? There is no print from which to make the model to? This seems like we're missing something?

The basic machine Def and post is included with MC that'll be fine for programming a 3 axis Haas

I did everything CNC recommended, and Verify works maybe 40% of the time. Just hopeful that 2021 update 2 will fix this.

One-click perfection! Thanks JP

The larger arc is 25" and the smaller arc is 23". I want to Unroll this to be able to cut it out of sheet metal, but unroll doesn't seem to work with different arc diameters. When this section is flattened, it should be a shallow "u" I'm assuming. Gotta make two of these that will weld together as a "ring"

The last few relatively complex 3 axis parts, I have done entirely with backplot.

I get it almost every time I use MC. But just in 2021 tho.

What about Creo? We've recently received models that were saved out as a .Step from being created in Creo. Do I need to ask the customer to check their tolerances before saving out as a .Step? I've had some issues almost the same as beej

What Haas mill doesn't have a toolchanger and uses a different make of controller???