Hi Peter and other, When I say printer + reel I thought you going to guess that I am talking about giant printer not a DeskJet :-) we are talking about 100" (2.6m) that fed with vynil,paper. etc.. there is no mechanism to find how much material left so I must build it. Tal -----Original Message----- From: pic microcontroller discussion list [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of p.cousens Sent: Wednesday, September 10, 2003 7:23 PM To: PICLIST@MITVMA.MIT.EDU Subject: Re: [PIC]: Length measurement Unless the next print run is only a few pages I can't see this is practical Peter Cousens cousens@biscit.biz > -----Original Message----- > From: pic microcontroller discussion list [mailto:PICLIST@MITVMA.MIT.EDU] On > Behalf Of Mike Singer > Sent: Wednesday, September 10, 2003 11:31 AM > To: PICLIST@MITVMA.MIT.EDU > Subject: Re: [PIC]: Length measurement > > Tal wrote: > > I just need to know how much material left on the reel to > > prevent the problem that I start a long printing without > > knowing if the material is going to finish before the print > > is done. the resolution I need is not that accurate (about > > ~100-500mm) so any mechanical wheel with a pulser will > > be enough. > > Why not move "paper end" sensor away at some distance? > > Mike. -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics