Guitar Neck, 4th axis, stripe down the center

I want to carve guitar necks for acoustic guitars on the 4th axis. I’m trying to find out whether I can accurately and repeatedly center the carve on the blank.

Imagine, if you will, a 3" x 4" x 28" laminated blank, made by gluing two 1.5" x 4" pieces of Maple together with a Walnut veneer in the middle. That Walnut stripe HAS to end up exactly in the middle of the completed guitar neck, or it’s firewood.

Does anyone know if this precise alignment down the middle of a blank can be done, and if so, whose software is used to do it, and/or what trick with the hardware to get the alignment?

Thanks!

It’s not the onefinity machine but the process is the same.
So you can see how accurate you can produce a part

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I do laminated guitar necks without the 4th axis using a plain old 2 sided job in VCarve pro. I don’t use Aspire for 3D modeling … instead I use Rhino for the 3D modeling and bring the STL into VCarve where I add the 2D vectors (for cutting the truss rod, tuners, etc) and CAM work

I do 1 piece, 3 piece, 5 piece, 7 piece, 9 piece…whatever, and like you said you have to be careful when setting up the work piece otherwise it’s either firewood or something that goes in the discount bin if the stripe(s) aren’t centered.

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