Hurray array... not quite

My original idea was to use the "arraycrv" command to place the cylinder module along the path at 3m increments (the modules are 3m after all). It should have been quick, easy and painless.

4 crashes and computer restarts later, I'm having another episode of rage against the machine.

clearly it requires too much cpu power. I checked the file size, and I guess unsurprisingly, it was 378Mb. The last two screenshots show that it worked with the structure for the cylinder, probably because it's a simple shape. No such luck with the cylinder skin.