On Sat, 2011-06-18 at 17:14 -0500, Jon Elson wrote: > Kim Kirwan wrote: > > The CUI sensors use the "kit" (frameless) mounting method. > > This mounting method lets you save money when your motor > > (or something) has a nice shaft sticking out the back, and > > a flat place to mount things. > > > > If you're ever looking for a "kit" (frameless) encoder, I have > > had good luck with USDigital's E6 series. Be sure to get the > > D option (differential outputs). The E6 series uses a 2" disk > > and is available up to 2,500 lines (10,000 counts). > > Priced at $87.97 in singles (with D option). > > http://usdigital.com/products/encoders/incremental/rotary/kit/e6 > > http://usdigital.com/assets/general/90_e6_datasheet_0.pdf > > > I have a personal bias against US Digital, as their low-cost line of > encoders have a number > of deficiencies. But, they seem to be becoming the only game in town! > Renco is reducing > what they make available, Avago is cutting back on the higher resolution > units they make > available, etc. > > If you don't have that much room, there is also the E5 series, > > using a 1" disk. Again, be sure to get the D option (differential > > outputs). Available up to 1,250 lines (5,000 counts). > > Priced at $77.25 in singles (with D option). > > http://usdigital.com/products/encoders/incremental/rotary/kit/e5 > > http://usdigital.com/assets/general/87_e5_datasheet_1.pdf > > > I have the Keling size-23 motors on my web store for $120. To use > either of these > encoders, I'd have to raise my prices significantly just to break even. > > Do you know of anything a little less expensive with a 1/4" hub and 1000 > cycles/rev (lines) preferably > with an index output? I haven't had any problem using single-ended > encoders in > my system, which have filters on the output of the servo amps. The Avago > HEDB-9040-B06 would be great, but they seem to have discontinued the 23mm > radius version that can go up to 1000 lines. Their parameter search > feature on > their web site doesn't work well. > > Jon
Koyo from Automation Direct is $87. The go upto 2500 ppr. More money than you want to spend but despite their being labeled at light duty encoders they seem to survive. I have a couple on the Mazak, a three on the Cinci and one on the lathe spindle (but nothing on the lathe is hooked up yet. ;-( They also offer a hollow shaft (8mm) for the same price. I expect to use one for the Z on the lathe also. No magic bullets here. ;-) HTH Dave > > ------------------------------------------------------------------------------ > EditLive Enterprise is the world's most technically advanced content > authoring tool. Experience the power of Track Changes, Inline Image > Editing and ensure content is compliant with Accessibility Checking. > http://p.sf.net/sfu/ephox-dev2dev > _______________________________________________ > Emc-developers mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-developers ------------------------------------------------------------------------------ All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2d-c2 _______________________________________________ Emc-developers mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-developers
