This is a completely untested idea, published for discussion purposes.
The idea is that you can make a gauntlet for e-NABLE Hands by parts that print flat to the print bed, hinged together with filament.
The parts you have to include art:

• Left bar
• Middle
• Right bar
  You can insert as many "left join" and "right join" parts as you need to fit someone's arm.
  Everything is Customizable. Some combinations might not make sense. For example, if you make the tensioner pins smaller than the screw hole in the tensioner pins, it'll let you, but the result isn't useful.
  So look at the preview first.
  Note that Customizer appears to be having trouble with this, but it works in OpenSCAD on the desktop.