Just wanted to note a problem I found here so maybe someone else doesn’t get bitten.
The B table is not actually level in the file named “V2-50 Machine Model - Simplified.step” linked from here: https://pocketnc.atlassian.net/wiki/spaces/PNFUR/pages/370475172/V2+Series+.STEP+Files
I built a fixture using that for reference and then realized it wasn’t flat which threw off some of my dimensions.