A zero reference point is the physical place you name when you set or check position. Write the feature. Do not write the clamp in its place.
The quote says “zero point,” the drawing says “zero reference,” and the fixture note says “datum system.” Those are not three spellings of one part.
This page owns the place you name. The zero point is the joint that puts the fixture back. The datum system is the hardware around that place. The short map only points.
A probed face is not a clamp
The manual plate page uses “zero reference” in a comparison with T-slots. T-slot setups often require re-fixturing. The plate column describes a move to a coordinate measuring machine (CMM): “CNC → CMM on the same pallet/zero reference.” Read that as the workflow the plate is meant to support: leave the part on the pallet and move the pallet. The same page says payback is not a catalog figure. The system page’s multi-machine note says no measured transfer result is published with that layout. The label does not mean the CMM and the CNC already share one origin.
A second published use is the Z reference plane. When receiver pockets are machined into a base, the system page says to cut those pockets in one setup so the modules share the same Z reference plane. That plane is a manufacturing reference for the base. It does not, by itself, set the work offset or the part’s drawing datum. On one job the probed face and that Z plane can be different features. Name both if both matter. Do not assume the pocket plane is the face the inspector will use.
The plate standardization guide puts the shop word next to the engineering word. Mark the surface or point used as the location reference. Engineers often call that the datum: the known place from which the rest of the setup is measured. On a quote, “datum” still does not name the hardware. Say which face is the reference, then say which joint is supposed to bring it back.
A pallet move is not a shared origin
A Manual & Automatic Pallet Changers moves the pallet between stations. It does not create one origin for the CNC and the coordinate measuring machine. The plate workflow “CNC → CMM on the same pallet/zero reference” means leave the part on the pallet. No measured transfer result is published for that move. If the two frames have to match, ask for the alignment record.
Fields the quote still needs
Name the feature someone will probe or align to. The joint and the locating set have their own pages.
- Zero reference point: the face, pad, bore, or plane someone will probe or align to. If a CMM is in the route, say so. Do not write “same zero” unless a measured transfer already exists.
Questions before you name the feature
Where do I enter the work zero after the clamp is seated?
On the feature you named as the zero reference, after the joint is seated. Do not type a catalog reseat number into the control. NEXTAS pages do not publish the work offset as a clamp specification.
What evidence shows the measuring machine matches the CNC?
An alignment record between those two stations. Ask the person who owns the coordinate measuring machine (CMM) for it. A pallet label that says “same zero reference” is the plate workflow, not that record.
Is the Z reference plane of the receiver pockets the part datum?
No. When the pockets are cut in one setup, that plane is a manufacturing reference for the base so the modules share one height. It does not, by itself, set the work offset or the part’s drawing datum. Name the probed face separately if that is what inspection will use.
Does a pallet changer make the CNC and the CMM share one origin?
No. A pallet changer moves the pallet. It does not create a shared origin. “CNC → CMM on the same pallet/zero reference” means leave the part on the pallet. No measured transfer result is published for that move. Ask for the alignment record if the two frames have to match.
Before a model number
Attach the machine-table drawing
The table drawing shows whether the quote lines fit the machine. Send it with the quote.
Send the table drawing
