On Sun, 26 Feb 2012, Kirk Wallace wrote: > Date: Sun, 26 Feb 2012 12:39:36 -0800 > From: Kirk Wallace <kwall...@wallacecompany.com> > Reply-To: "Enhanced Machine Controller (EMC)" > <emc-users@lists.sourceforge.net> > To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net> > Subject: Re: [Emc-users] Film Emulsion for Encoder Wheels? > > On Sun, 2012-02-26 at 15:13 -0500, Dave wrote: >> I'm not meaning to be a joy killer, but have you looked at the encoder >> wheels that you can buy from places like US Digital? >> >> The seem really cheap to me at $18 for a qty 1 - 2" diameter disk >> including a hub. Higher volumes and the prices drops quickly. >> >> I bet if you call them they will tell you how they make those. They are >> pretty open about their technology. >> >> Dave > > I want a 3" encoder to go on the end of a ballscrew like this one: > http://www.wallacecompany.com/machine_shop/bridgeport/00047-1a.jpg > > My guess is that US Digital would charge a fortune to make a custom > disk. Once I get the system worked out, I can make as many as I want. > > My guess is that they use film because the US Digital disks I have, seem > to smear or get tacky like film if I get moist fingers on them, which I > very much avoid doing. > > I have a motor with a mirrored and etched glass encoder disk. I think > it's one of the sexiest things in my shop... besides me of course. > -- > Kirk Wallace > http://www.wallacecompany.com/machine_shop/ > http://www.wallacecompany.com/E45/index.html > California, USA >
A 10X12 laserplot with 5000DPI on 6-7 mil mylar base film is around $20. Thats a lot of encoder disks... http://www.photoplotstore.com/pages/photoplots.html for example > > ------------------------------------------------------------------------------ > Virtualization & Cloud Management Using Capacity Planning > Cloud computing makes use of virtualization - but cloud computing > also focuses on allowing computing to be delivered as a service. > http://www.accelacomm.com/jaw/sfnl/114/51521223/ > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your (")_(") signature to help him gain world domination. ------------------------------------------------------------------------------ Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
