I apologize for duplicate posting, but after writing a post I noticed few actually read the section I put it in, while the cnc forum seems busy. Basically, I was wanting to know if anyone has tried using v-slot with metal wheels (rm2zz, etc) with a square cold rolled steel rail inserted, or a hot/cold rolled steel angle? Comparing the cost of this to other steel rail ideas, this could be quite a bit less expensive. full thread here: http://www.openbuilds.com/threads/steel-v-wheels-need-inexpensive-rail-ideas.1927/ Thanks [ps, I'll try to avoid duplicate posting in future]