After proving the machine could do a decent jon of the calendar I tried a much simpler but more telling test of it's basic geometry. I cut a 150mm disc and a 150.4mm circular hole out of 6mm MDF to see if the disc would rotate in the hole. Does it cut circles or ovals?

The disc was a close fit in the hole and rotates 360 degrees with a little variation of stiffness as it goes. My digital calipers claim the disc diameter varies between 149.8 and 150.2mm. Not the height of modern engineering but certainly acceptable for this low budget machine and adequate for my wood-cutting needs.

Accuracy could probably be improved by looking at areas where stifness could be improved and spending some time repeating the alignment procedure from last week with some finer shim material. For now I just want to get on with making stuff with it!

Kit