Missing ref to Orbiter-2?
in the RATOS/extruders folder, I see config files for Orbiter and Orbiter-1004 AND Orbiter-2 (I own a Orbiter-2)
in Printer.cfg I do not see a ref to Orbiter-2.
-Do I add this ref myself? "[include RatOS/extruders/orbiter-2.cfg] "
-if so, how does the mechanism work with ref to /config/RatOS/steppers/ldo/36sth20-1004ahg? This folder contains 2 config files; one with 0.7amp and the other with 0.85 amp motor current. The Orbiter manual states I should/could run it at 0.85Amp but not sure If I should override this in printer.cfg
14 Replies
-Do I add this ref myself? "[include RatOS/extruders/orbiter-2.cfg] "You definitely can, although there is no difference from Orbiter-1004.
-if so, how does the mechanism work with ref to /config/RatOS/steppers/ldo/36sth20-1004ahg? This folder contains 2 config files; one with 0.7amp and the other with 0.85 amp motor current. The Orbiter manual states I should/could run it at 0.85Amp but not sure If I should override this in printer.cfgRatOS runs the orbiter motors at 0.7amp by default as they get smoking hot at 0.85a. I do not personally recommend you run it at 0.85A, so do so at your own risk. The orbiter-2 config currently only exists as preparation for config generation in RatOS 2.1. It serves no practical purpose at the moment (it's a straight copy of orbiter-1004)
Hi Mikl, I figured as much... Thanx for the swift reply! Do you have any experience with the Orbiter-2? I figured the 0.7Amp should be sufficient for normal use?
Yes and yes, it's the same as the 1.5 🙂
This seems a good place to check - @miklschmidt the config values in orbiter.cnf do not seem to match the suggested settings in the leaflet that LDO supplies with the Orbiter 2.0
From here: https://www.orbiterprojects.com/orbiter-v2-0/ I see the following:
On RatOS however, we see in 24v-0.7a-e.cfg:
run current being lower is clear (RMS / Peak), but I also see different driver flags
I also see this in orbiter.cnf
note the run_current
This is correct, and intentional. The official orbiter recommendations is overcurrenting the 36sth20-1004AHG by 200mA peak. It makes it run too hot in an enclosure. It's also not necessary to get excellent performance.
Driver tuning is dependent on current, voltage and driver sense resistance. 0.707 is going to require different settings than 0.85, there are also multiple values that work given the same parameters.
The RatOS driver settings are calculated with the TMC Driver calculation spreadsheet (and tested).
If you wish to try the 0.85A settings, there's a preset for that too. Simply include the 24v-0.85a-e.cfg in user overrides.
This is for the 36sth17, it's overwritten by the motor include (which is included by default in the orbiter-1004.cfg and orbiter2.cfg files).
If you run the 36sth17 at 0.707 it'll burn.
orbiter-1004.cfg is an unfortunate name, but changing it would break existing installations.Very extensive and clear answer, thanks! Maybe a note in the config file so future people don't run into this? As this deviates from the OEM manual that comes with the device
@miklschmidt
Yes, i should definitely document this somewhere
Appreciate it!