It should not be about merging of tags, rather we should come up with a proper terminology to identify the correct parts of the "build platform".
Basically, every printer consists of a frame with some sort of guide rails1 moving a carriage. On this carriage a build surface is attached where the printer prints the print on; it is always the top of the stack. Note that this can be e.g. a moving Y-axis2 or moving Z-axis carriage3. In some cases the carriage is missing and there is just a static mounting, then it's a platform instead4. It is basically irrelevant if the build surface is glued to the stack or removeable in some way or another.
Between the carriage and the build surface you can have have a stack of multiple elements: a structure or structures, a plate, plates or matts, insulation, etc. This whole assembly of elements make up the build platform, an example is shown below.
Note that the linear support can be mounted in Y or Z direction. To tag the elements that make up the build platform assembly, a proposed solution can consist of the following terms for subassemblies:
- z-axis or y-axis in combination with carriage,
- platform (to support printers that have a solid platform, e.g. Hyrel/Delta)
- heated-bed (aluminium bed or a silicone matt), which can have a
- glass-print-surface, pei-print-surface, buildtak-print-surface, etc. possibly augmented with the additional tag of removeable-print-surface or magnetic-print-surface.
- The rails often take the shape of rods and bearings, linear rails of V-slot profile.
- Carthesian Portal or Cantilever printers
- CoreXY like the Hypercube
- Delta Printers
Edit: I like Trish's suggestion best.
I vote no. Our (Hyrel) printers have, on some models, a thick aluminum bed that can reach 200C, but we expect users to mount different build-plates on it, depending on what material they're printing with. These can be coated with PEI, garolite, polycarbonate, or others; or they can be commercial build plates like GeckoTek or Anycubic Ultrabase.
You heat the bed. You print on the build plate. In some cases, these may be a single item.
I too vote for no, but for different reasons:
The y-axis or z-axis hold the carriage, which levels the Printbed. The bed can be heated and is the carrier for the build-surface. For example, whenever we talk about a "glass bed" we actually mean a glass build-plate that is mounted on a heated bed. Springsteel usually is correctly referred to as build surface. BuildTak and other build-surfaces are bonding directly to the bed. The distinction is pretty much along these lines:
- The mechanical moving system is under the bed
- the heating effect of this makes it a heated-bed
- The area directly in contact with the extruded plastic is the build-surface
- The plate in contact with the curing resin in an SLA printer would be the build-surface
Technically, there might be a renaming needed closely related: