...strictly speaking, perhaps. But not really.

I placed one of the mirrors on a cloth on some ply and put it on the ground. With a 35mm eyepiece taped to a washing line prop, and standing on a stool, I tweaked the twist-grip 'focuser' and saw some stars. Quite a few considering the <1deg TFOV. Some of them looked more or less like points - the bright ones looked like a mosquito wing presumably because I was viewing off-axis. I think I proved nothing more than that the mirror reflects light and focuses it to 'some' degree. My mate's got a photo, I'll post when I get it. ;)

Going to try and restart this project over the next few weeks. I reckon there's maybe another 20-30 hours to go before I can get one OTA complete. I'm still making it up as I go along. I have a plan for the primary, an idea for the secondary mount and spider, a prototype helical focuser and a bunch of structural work to do.