text: <s>[INST] Offset during dynamic gearing between virtual axes Hi Everyone , I would like to gear 2 virtual axes during either a run or before axis moves. In order to do that , I used following solutions but still got an offset when it was geared with ratio other than 1:1. 1) Using MRP Absolute to move slave axis to master's position then latch gearing. (1:1 it works but if the ratio is different , there is always big offset) 2) I calculated the actual position difference between master and slave and use this as failure to make relative move with MRP. ( I got 0.08 position difference at the end which might be ok but still not precise enough for me) ** Note : Offset happens when gearing ratio is different than 1:1. Is there any more reliable alternative to do it ? Thanks in advance. Sertac [/INST] Hello srtc the big advantage of virtual axis is that they are perfect (not position or velocity errors). So the issue that you have can not result of a bat tuning or mechanical setting...etc. It is certainly. a MAG setting or axes setting. could you give more details on this please ? to answer your 2 points: it is normal that if you do not have a 1:1 ration you will see a difference on your axes. are you using Ratio or Mastercount/slavecounts ? what ratio format have you selected ? are you using the clutch ? all those parameters will impact the gearing relation between your master and your slave. review the Logix 5000 Controllers Motion Instructions (rockwellautomation.com) manual (p112 to 124) to know more about those parameters. TIP: you can also use MAPC to do gearing, regards \\n </s>