On Wed, 2009-04-08 at 13:58 +0000, Tom wrote: > Kirk Wallace <kwall...@...> writes: > > > > Current pricing seems to be about $50 for each axis if you make your own > > disk hubs and sensor mounts. I have my encoders on the end of my 5TPI > > ballscrews, giving 50000 pulses/1". > > ------------ > > Thanks Kirk. > Is that the E6 model? > Tom
DISK-2-2500-750-I would be the version with a .75" dia. hole. http://usdigital.com/products/encoders/incremental/rotary/disks/disk-2/ EM1-2-2500 is the matching sensor. http://usdigital.com/products/encoders/incremental/modules/em1/ Now that you got me looking at this again, it looks like the disk with the hub included, might be the way to go, it's only $5 more. I had a little trouble getting a good fit with my custom hubs. The center diameter needs to be a slide fit. The hub/disk center diameter corners need to be slightly undercut (only to the sides) to clear the disk hole edges. The clamping area should be large and rigid enough for the required clamping pressure, use only what is needed. Any deficiencies in these areas will warp the installed disk and it needs to be as flat and true as possible. I think USD glues the disk to the hub so they avoid the clamping problems. It looks like the E6 kit with the same spec's is $83: E6-2500-750-I-S-D-D-B http://usdigital.com/products/encoders/incremental/rotary/kit/e6/ I usually end up trying to customize the kit, so I just get the disk and sensor separately, but if you can use it as is, it may be the way to go. -------------- Kirk http://www.wallacecompany.com/machine_shop/ ------------------------------------------------------------------------------ This SF.net email is sponsored by: High Quality Requirements in a Collaborative Environment. Download a free trial of Rational Requirements Composer Now! http://p.sf.net/sfu/www-ibm-com _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
