Plasma table build, first question....

[Davek0974]

Thanks, the proma THC is the unit I am thinking of using when I fit THC, the THC and driver does not seem to be available anymore but the THC on its own is.

0.5mm or better is plenty good enough I think.

[Boyan Silyavski]

0.5mm or better is plenty good enough I think.

Errors accumulate in the build :-) , its not only one thing. I strive to make everything perfect in my build, even knowing that could not be.

Also accuracy is ok when depends for whom and for what purpose.

FYI after reading your answer i went in the garage and started precisely measuring the 10mm thick steel elements that ordered lasercut for my build. I haven't done it before as everything fit nice together. Guess what - 0.01 -0.03mm at the most, different from the drawing.

A properly constructed , aligned and calibrated belt driven machine can offer real life precision in the ballpark of 0.05mm. Yes, even with roller bearings and belt. This for the unbelievers. My machine uses V bearings / roller bearings inside- 608/ on supported rail. When i bought it new it was in the 0.5mm ballpark, a couple of days thinking and bettering it and now is in the 0.05 -0.1 mm , i am talking about router not plasma.

So, take your time and strive, you could make a very precise machine if you invest more time and precision right now when building it.