Hi Leonardo, I know you are not in the USA so shipping cost may be an issue, but I would rewire them as normal resolvers and tie them into a Mesa resolver interface and be done with it since you have other Mesa hardware.
A drop in replacement for those encoders in a similar housing will not be cheap. These are likely the proper frame size and they start at $240 x 3 .... http://www.automationdirect.com/adc/Shopping/Catalog/Sensors_-z-_Encoders/Optical_Rotary_Encoders/Heavy_Duty_Incremental_Encoders_%28Quadrature%29 And then you need to replace cables and connectors, make adapter plates, replace couplings, etc. If you leave the resolvers alone you only need to deal with the Mesa boards and getting the excitation right to the resolvers which is really pretty easy. Rewiring in the control box is a lot easier than replacing the resolvers. Resolvers are pretty much bullet proof other than the bearings. I've replaced several encoders that were broken from shock. Dave On 12/4/2014 6:45 AM, Leonardo Marsaglia wrote: > 2014-12-04 7:37 GMT-03:00 Dave Cole <linuxcncro...@gmail.com>: > >> Can you easily retrofit to encoders? >> Most resolvers seems to be a different form factor or buried in the >> machine making replacement with encoders difficult. >> Most encoders don't like grease and oil being slung around. >> > Hello Dave. > > Well here's how it's mounted. http://oi62.tinypic.com/2enakck.jpg > > It's not that hard to replace them for encoders, only an adapting plate > would be necessary. > > Reading about how reliable resolvers are in agressive enviroments it's what > keeps me thinking about go ahead and use them even if it's not that easy to > adapt them to LinuxCNC. It would be great if I can read them the way they > are working right now, as Peter said It wouldn't be necessary A/D circuitry > so I guess with HAL programming this could be done. > > > > > > --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=164703151&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
