Hi. Can you advise if 12mm linear guides with MGN12C carriage work for small cnc plotter with Nema 23 3Nm motors? It will mill aluminum and steel.
I built a machine with 12mm rails and nema 23 motors works good for aluminum but it is not really heavy enough for steel. here is the build. LINEAR RAIL SPHINX 55 (Blue OX plates)
Yours uses the MGN12H carriages, right? Those rails were stupid expensive compared to the HGR20s. (And the 20s where cheaper than the HGR15s.) Extra carriages were cheap, tho.
How small is small. If it's small enough the 12mm may be OK since the bigger the rail the bigger the machine has to be to accommodate it.
It will look like the one from aliexpress, a 400x250 aluminum work table with a metal base, and a frame made of a 60x60mm steel profile.
