Max, We just bought some from U.S. digital that resolve to ten thousand divisions per revolution they're about $95.00 each without the counting electronics. Somebody who remembers trig would have to decide how far you could travel before getting signifficantly off course with that kind of resolution available <GRIN>
I think a 64 step per rev unit might doo pretty well, or maybe a 256. I think they'd cost in the neighborhood of forty bucks. Maybe the tape and winder or some simpler windup string might be cheaper! <GRIN> Tom On Sun, Aug 16, 2009 at 09:20:53PM -0500, Max Robinson wrote: > I was thinking more along the lines of a shaft encoder but they can get a > bit pricy. > > Regards. > > Max. K 4 O D S. > > Email: [email protected] > > Transistor site http://www.funwithtransistors.net > Vacuum tube site: http://www.funwithtubes.net > Music site: http://www.maxsmusicplace.com > > To subscribe to the fun with tubes group send an email to, > [email protected] > > ----- Original Message ----- > From: "Tom Fowle" <[email protected]> > To: <[email protected]> > Sent: Sunday, August 16, 2009 8:34 AM > Subject: Re: [BlindHandyMan] Re: following straight lines: > > > > Max, > > I suspect you'd have some trouble with the tape join to the presumed pot > > on > > the helmet, and with the resolution of the pot. I actually think you'd > > get > > better resolution of the angle with my second idea, having a pointer on > > the > > digger, in front of you, to check against the tape. > > > > At work, we've actually talked a bit about studying techniques for > > following > > straight lines. Might put this in the hopper. Paper in a few years or so > > <GRIN> > > > > Tom > > > > On Fri, Aug 14, 2009 at 09:51:53PM -0500, Max Robinson wrote: > >> Interesting. An extension of this would be to use an angle sensor that > >> will > >> control a tone generator like the auditory gimmick. When the tape is > >> straight ahead or behind the tone would be at it's lowest. If you got > >> off > >> line the tone would increase. You could easily tell which way to turn by > >> experimentally turning your head to see which way you are off. > >> > >> Regards. > >> > >> Max. K 4 O D S. > >> > >> Email: [email protected] > >> > >> Transistor site http://www.funwithtransistors.net > >> Vacuum tube site: http://www.funwithtubes.net > >> Music site: http://www.maxsmusicplace.com > >> > >> To subscribe to the fun with tubes group send an email to, > >> [email protected] > >> > >> ----- Original Message ----- > >> From: "Tom Fowle" <[email protected]> > >> To: <[email protected]> > >> Sent: Friday, August 14, 2009 8:56 AM > >> Subject: [BlindHandyMan] Re: following straight lines: > >> > >> > >> > Actually I wonder if a self winding tape could be put on a hefty stake > >> > beyond the eventual end of the proposed ditch. Then fasten the free > >> > end > >> > of > >> > the tape to your helmet, everybody working with heavy equipment wears a > >> > helmet of course, and just reach up once in a while to see that the > >> > tape > >> > remains straight ahead of you. It winds up as you follow it along. > >> > > >> > For even more accuracy, fasten a stick to the digger so it points at > >> > the > >> > tape where you can reach it to check. > >> > > >> > Tom Fowle > >> > > >> > > >> > ------------------------------------ > >> > > >> > Send any questions regarding list management to: > >> > [email protected] > >> > To listen to the show archives go to link > >> > http://www.acbradio.org/pweb/index.php?module=pagemaster&PAGE_user_op=view_page&PAGE_id=33&MMN_position=47:29 > >> > Or > >> > ftp://ftp.acbradio.org/acbradio-archives/handyman/ > >> > > >> > The Pod Cast address for the Blind Handy Man Show is. > >> > http://www.acbradio.org/news/xml/podcast.php?pgm=saturday > >> > > >> > Visit The Blind Handy Man Files Page To Review Contributions From > >> > Various > >> > List Members At The Following address: > >> > http://www.jaws-users.com/JAWS/handyman/ > >> > > >> > Visit the archives page at the following address > >> > http://www.mail-archive.com/[email protected]/ > >> > > >> > If you would like to join the JAWS Users List, then visit the following > >> > address for more information: > >> > http://www.jaws-users.com/ > >> > For a complete list of email commands pertaining to the Blind Handy Man > >> > list just send a blank message to: > >> > [email protected]! Groups Links > >> > > >> > > >> > > >> > > >> > > > > > > ------------------------------------ > > > > Send any questions regarding list management to: > > [email protected] > > To listen to the show archives go to link > > http://www.acbradio.org/pweb/index.php?module=pagemaster&PAGE_user_op=view_page&PAGE_id=33&MMN_position=47:29 > > Or > > ftp://ftp.acbradio.org/acbradio-archives/handyman/ > > > > The Pod Cast address for the Blind Handy Man Show is. > > http://www.acbradio.org/news/xml/podcast.php?pgm=saturday > > > > Visit The Blind Handy Man Files Page To Review Contributions From Various > > List Members At The Following address: > > http://www.jaws-users.com/JAWS/handyman/ > > > > Visit the archives page at the following address > > http://www.mail-archive.com/[email protected]/ > > > > If you would like to join the JAWS Users List, then visit the following > > address for more information: > > http://www.jaws-users.com/ > > For a complete list of email commands pertaining to the Blind Handy Man > > list just send a blank message to: > > [email protected]! Groups Links > > > > > > > > >
