[Emc-developers] Absolute resolvers
Using the position.txt file and a tweak to the Mesa resolver driver I have had good results making my lathe work as if it has absolute encoders. Does anyone have any opinions about whether I should, or should not, push it? Naturally it would need docs, but you basically just need to connect joint-pos-fb to the resolver module so that it can see the value read in from the position.txt file and set a bit parameter to say "wait for that value" https://github.com/LinuxCNC/linuxcnc/commit/0ece124eb52ad6b723db326543714af66ed1930a -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1916 -- Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot ___ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
Re: [Emc-developers] Absolute resolvers
On Thu, 5 Jul 2018, andy pugh wrote: Date: Thu, 5 Jul 2018 20:18:37 +0100 From: andy pugh Reply-To: EMC developers To: EMC developers Subject: [Emc-developers] Absolute resolvers Using the position.txt file and a tweak to the Mesa resolver driver I have had good results making my lathe work as if it has absolute encoders. Does anyone have any opinions about whether I should, or should not, push it? Naturally it would need docs, but you basically just need to connect joint-pos-fb to the resolver module so that it can see the value read in from the position.txt file and set a bit parameter to say "wait for that value" https://github.com/LinuxCNC/linuxcnc/commit/0ece124eb52ad6b723db326543714af66ed1930a This should also work for any 1 turn absolute encoder (like the common Hall effect encoders from AMS etc) -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." ?? George Fitch, Atlanta Constitution Newspaper, 1916 -- Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot ___ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers Peter Wallace Mesa Electronics (\__/) (='.'=) This is Bunny. Copy and paste bunny into your (")_(") signature to help him gain world domination. -- Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot___ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
Re: [Emc-developers] Absolute resolvers
On 5 July 2018 at 20:28, Peter C. Wallace wrote: > This should also work for any 1 turn absolute encoder (like the common Hall > effect encoders from AMS etc) It should, but the drivers need to be modified to support it. And I don't have any to test it with. -- atp "A motorcycle is a bicycle with a pandemonium attachment and is designed for the especial use of mechanical geniuses, daredevils and lunatics." — George Fitch, Atlanta Constitution Newspaper, 1916 -- Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot ___ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers