What do you call the type of printer that uses the Z axis to raise/lower the bed?

[fcwilt]

Someone somewhere has the information I want. Spending a ridiculous amount of money on a board like that for a project like this is akin to using a steam hammer to squash a malteeser :-)

My long term goal is to equip these printers with Diamond 5 color hotends - the Duet with expansion handles that with aplomb.

I'm retired after working hard for many, many years - it's time to have some fun.

Frederick