Quick question for the group... I currently have a Longmill - 1st edition - looking to upgrade to a more robust machine - looking at the Stepcraft M700 or the Digital Wood carver DWC2836. Does anyone have experience with either of these? I have looked at the Onefinity, Altmill, Shapeako and feel for a couple more bucks I can get a more heavy duty machine. Any thoughts or any other machine recommendations. Oh, I do want a quick delivery - maybe a month or so.