Just want to give a shout out to @Ryan - damn good work man, this project is awesome and everything is so well laid out.
My first build is up and running after a couple small user errors with the end stops, all the docs say not to use the + cable, but with optical sensor that is not the case…
When my table is running everything is smooth no glitching or rough movement but there is what I can best describe as a low hum or vibration or fan noise (there are no fans). The sounds does not appear to be coming from the steppers but it must be and just traveling down the belts? When I put my ear to the motors they are dead silent and no heat. Any ideas??
Also - what should the belt tension be? I have about 1" of sideways play maybe a little less between the corner cross blocks, maybe a little less everywhere else.
Thanks again and can’t wait to built my next one.