Forget all of that about the encoder. The setting of the OFFSET_AV_RATIO is what's causing the velocity issues. I forgot that had it too high. Anyway I didn't expect the limitation without enabling the external offset pin.
Sorry for all the monologue, but it's 2:00 am here and I'm a little bit sleepy to function well :). El mié., 18 mar. 2020 a las 1:55, Leonardo Marsaglia (<ldmarsag...@gmail.com>) escribió: > Well now it seems to work ok. > > One problem I had was my simulated encoder was working in negative numbers > at the position output. That happened when I tried to increase the sim > encoder velocity from 0.1 to 0.5 (I don't know why). Anyway, since my > offset component for cams isn't ready yet I didn't included reverse > rotation of the spindle. > > Setting the speed to 0.1 again I don't have the negative output and the > offset output at the component I use to make the cams is ok too. But all of > this happened with the external offset enable pin on the FALSE state so I > don't really know why the velocity and acceleration of the axis were > limited. > > It seems strange to me anyway that something like that could cause the > behaviour but I'm not that into the 2.8.0 version yet. Also I think is not > a bad thing to share all of this in case this is a bug. > > > > El mié., 18 mar. 2020 a las 1:44, Leonardo Marsaglia (< > ldmarsag...@gmail.com>) escribió: > >> It seems the external offset OFFSET_AV_RATIO is causing it. But I don't >> have the external offset enable for any of the axis. >> >> Is this a bug? >> >> El mié., 18 mar. 2020 a las 1:37, Leonardo Marsaglia (< >> ldmarsag...@gmail.com>) escribió: >> >>> Just for the sake of understanding my max linear velocity is 10000 >>> mm/min. (Here we use the dot as thousand separator). >>> >>> El mié., 18 mar. 2020 a las 1:34, Leonardo Marsaglia (< >>> ldmarsag...@gmail.com>) escribió: >>> >>>> Hello guys, >>>> >>>> I'm finishing the final simulations and tests before mouting the new >>>> control into the machine. We're mounting it this friday. >>>> >>>> Everything is working as expected except one thing I just noticed >>>> trying to jog the axis on rapid. >>>> >>>> The behaviour is the following: When I start LinuxCNC and move the axis >>>> I get the maximum speed 10.000 mm/min. Once I hit the home buttons for both >>>> axis (no limits linked yet since I'm testing the config) I get a 1.800 >>>> mm/min max velocity, although all the sliders are in the max velocity just >>>> as they where before homing. If I try to make a rapid move using MDI the >>>> same thing happens. >>>> >>>> Do you know what can cause this behaviour? I tried to google similar >>>> problems but didn't find anything. I'm using the 2.8.0 version of LinuxCNC. >>>> >>>> Thanks as always! >>>> >>> _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
