The hole spacing's for the OpenRail plates are not the same for the V-Slot gantry plate You can bolt OpenRails directly on the VSlot or any 20 series extrusions and then use the OpenRail plates. But you cannot use the OpenRail plates directly on the V-Slot tracks that is what the V-Slot gantry plate is for.
Thanks! I wasn't sure. From the picture the open rail plate looked like an easier to deal with size than the v-slot so I figured it wouldn't hurt to ask.
NP They are actually confused a lot and we have been working on ideas to make them a little more individualized at a glance.