While waiting for the drive board to arrive the build plate was improved by addition of leveling screws and hold down clamps.
Even though this is a welding machine having a wood base has proven to be a good idea.
The wood is a means to easily attach a thin sheet of metal to complete the weld circuit. Long wood screws are used as the temporary hold down.
This metal sheet can be removed from the model after the build is completed.
A section of a recycled oak table top is cut to size and then is covered with an aerogel blanket to prevent fire. Next up is a layer of fire bricks with the metal sheet topping the stack.