Alexey Starikovskiy pravi: > Main problem seems to be that you need to make sure you don't increase skew > between linked axis while homing or working. >
Just that.! The homing as is doesn't increase the skew (if parameters are correct) > Hoping that it's small enough and machine can cope with it could be > expensive. > The skew itself is problem. If appears then something is already very bad. As I tested on my unfinished machine if I fix the one side rock solid and pull another side with 500N force the gantry is skewed les than 1mm. So if I assume than my stepper can put max 500N force on gantry the max skew is 1mm. If My gantry hit some obstacles and is skewed more than 1mm then there are NO WAY to unskew that with homming procedure alone. As motors are NOT STRONG ENOUGHT to move such skewed gantry at all. So the home procedure can make unskew only if it's small. (and to do proper the gantry should move slow and home switch must have short "backlash". Not so long ago I want to have report on (re)homming how far from home axis was. That's should be just fine here too. If Home is not same then you have gantry skew. And gantry skew can be removed in most cases only by hand intervention as skewed gantry make big force and stall mottors. > Second problem, it should still look as one axis to interpreter and gui. > I was thinking that gantry kins already do that. Wasnt?!? > Alex. > Slavko. ------------------------------------------------------------------------------ Download Intel® Parallel Studio Eval Try the new software tools for yourself. Speed compiling, find bugs proactively, and fine-tune applications for parallel performance. See why Intel Parallel Studio got high marks during beta. http://p.sf.net/sfu/intel-sw-dev _______________________________________________ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
