Dal Wheeler wrote: > > ----- Original Message ----- > From: Alexandre Guimarces > > I have the first one built from printer parts and it works but I am > > going for the second one with real guides. The linear guides are cheap > > enough and will give better results. The one I have built is too big, too > > ugly and too slow :-( > > Sorry to horg in on the conversation, but how cheap can you get linear > guides --Production cheap? Hobby cheap? Tightwad cheap? I've toyed with > this idea as well, but obviously not gotten very far with it (other than > cluttering up the basement with misc. tractor type drives gleaned off of > other equipment.) Tractor drives with toothed belts are cheaply available in any old matrix printer. They are very fast and with a 8th step microstep driver you can get good speeds AND resolutions. It's just handy to get the whole assembly in one, and just attach wires... Unless you need to move a lot of weight or need high rigidity they work great. :o) -Roman -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.