m16 studding work instead of ballscrews ?

[BillTodd]

One point to watch out for is that the pitch tends to be slightly greater than standard on rolled threads (rather than averaging out), so a 100 turns on a 1.5mm pitch may well be greater than 150mm.

You'll need to calibrate the exact pitch when you set-up the axis params in mach or emc.

[edit] tip: if you are buying mail order, buy three or more lengths - they'll almost certainly be taped together when packaged so will be less prone to being bent in the post

[edit2] I don't see the point of using M10x1.5 over M8x1.25 - it'll have larger drag (because of radius & circumference) than M8 for little gain in pitch. Irving's suggestion of 12mm x 3 acme/trapezoidal from Marchant dice sounds a better option.

[edit3] As soon as I get my travelling steady finished, I intend making a 5/16" 11TPI with new roller nut idea, for my engraver .