The minute I saw a Lego base-plate, I knew I’d have to find an alternative.

Most of the building I’m doing is on my smallish round dinner table. When I have guests stuff has to be able to be moved easily to shelves. Just how weak and bendy the original base-plates are was amply illustrated to me by Darryl of Bevin’s Bricks on Youtube cutting one up with a box cutter.
I already searched through possibilities like glueing base plates on cardboard and building on ordinary plates and joining those with other ordinary plates. Neither of which attracted me. The first because it’s hard to stay accurate. The second because of heavy and awkward builds springing apart when you least expect it. I’ve read about builds grievously falling apart while being transported from one table to the next. Not ideal, in other words.
Then, on one of the FB groups I joined, I saw mentioned the MILS plate as the next development in the search for a strong base plate. Following that up, I saw a good explanation on Bevin’s Bricks. [Though I have again forgotten what ‘MILS’ means. I have a life-long memory glitch in relation to acronyms.]
Me constructing a ‘proper’ MILS base plate right now would’ve meant ordering the required parts, and weeks of waiting on covid-struck postal services in several countries. Even getting supplies by post from my local brick resales outlet a few suburbs away, usually takes a couple of weeks.
Not helped this week that I’m house-bound again, waiting to be told whether I have covid or another lurgy. Well, I know I have a lurgy. Ten days of coughing.
But … I have six alternate-lego base plates, lots of blue 2×2 bricks and red 2×2 bricks that I have no idea where to use, a few 30-year-old Technic 1×6 bricks, and a bunch of blue sun-damaged plates of all sizes. Can I achieve something with them?
I could. Very likely the ordered honeycomb of professionally built MILS base plates is not present in the internals of my sandwich base plate (below) because I spaced the reds and blues according to need, not design. I’m very happy with it and am aiming to put another one together tonight.
