Recently, Maker Shed offered a laser-cut acrylic casing for a geiger counter. Here is a blog entry on the assembly of the casing, which shows how standoffs are used.

I thought, “That looks nice,” so it was back to the drawing board. I got the dimensions and pricing for standoffs here, and after some fiddling around in Sketchup, I constructed a laser-cut acrylic robot casing with standoffs like so:

(I’ve reduced the transparency to zero for clarity’s sake.)

And this is what it looks like in an exploded view:

So we’ve gone from acetone-bonding, to bolts, to standoffs. It looks like the design is beginning to stabilize. I think for sure that this week I’ll be cutting acrylic.