Do I have a bad Machine or is it just a bad machine?

[Do I have a bad Machine or is it just a bad machine?]

Make sure all the wheels to the carriage are in place, when mine arrived one had jumped out of the track caused me all sorts of trouble until I discovered it.

Does your cutter head move smoothly above 100mms and if so at what speed does it begin to stutter as it cuts

[Do I have a bad Machine or is it just a bad machine?]

Yes, I've already checked everything listed.    

[Do I have a bad Machine or is it just a bad machine?]

I am not new to plotters,but new to the SC cutter.     I recently purchased one as a back up to replace my old MH cutter as my back up.  I wasn't expecting this thing to be a top of the line machine, but I did expect it to be better than my MH, but it certainly is not.    If I try to cut above 100ms the blade holder will stutter as it cuts.   even cutting as slow as 200ms it stutters.