I’ve been using my delta with replicape for quite some time and it’s working very good. Thank you for this nice board!
Recently I changed my endstops to magnetic switches with no fine adjustment option, so I need to mess now with that “end stop offset” thing which isn’t very clear to me in spite of lot of reading on the subject.
So, my main question is: which parameter in the config files is affected by M206? Changing values with M206 seem to generate NO differences in redeem behavior, nor they appear in the config files after I issue the M500 to save changes.
Before I was manually adjusting my endstops until the distances from the bed at the (or close to) columns locations were the same as in the center (with dial indicator in the effector). Now I was hoping that M206 would allow me to do similar thing but with the software correction.
Could someone guide me or just share a hint on this calibration, please?)
Here are some relevant sections of my current config file:
Hi Olexandr, It’s odd that I don’t see those settings in your config now, but the values that M206 adjusts are normally
[Endstops]
end_stop_offset_x = -
end_stop_offset_y = -
end_stop_offset_z = -
I’m honestly surprised that those settings did not appear in the Documentation at all - I’ll make a note to have that added ASAP. If you’re in doubt about the syntax, double-check what the variables are called in the default.cfg file, and re-use that.
As to M206, you need to run M206, home, then try to see if you’re centered again. You can save the values modified to the local.cfg file using M500 afterwards.
Hi Jon!
My default.cfg doesn’t have those params either. But my installation is more then 1 year old and redeem version is 0.9 so I think it’s time to update
Thank you for hint!
Ah, hehe, then yes, probably Be careful, lots of things have changed in Redeem’s [Delta] section too. You’ll need to subtract the value in hez from r and remove hez (it’s gone). If you have any probe at all you can probe with G33 to get all the values for your printer (endstop offsets, delta radius, tower offsets…). Come and ask if you need help, there’s always someone ready to help, either here or on the Slack.
Ok, I flashed 2.1.0. In default.cfg there is still no mention of “end_stop_offset_*” parameters…Looks like I’ll be looking into redeem’s source code.
By the way, is it safe to click on “Update Now” when Octoprint’s “Update available” pops up?
Well… Installed 2.1.1
There still no “offset” params in the [Endstops] section…
The values changed with M206 somehow end up written (with “-” sign) to “offset_*” parameters from [Geometry] section. And these parameters, contrary to the documentation, do NOT change anything in my homing or any other movement… Now I’m really stuck…
Aye, you need to have some kind of negative number for your X/Y/Z offsets in [Geometry]… have you run any G33 calibrations? Here’s what I have for example:
offset_x = -0.31629893673
offset_y = -0.317463940269
offset_z = -0.316830120087
Then my “home_z = 0.300” which pulls my carriages off of the endstop switches. In the [Homing] section…
I do not have any bed probe and was perfectly printing like this for 2 years. I have plans to install one, but I still want to understand how to calibrate it manually.
I’ll be trying your suggestions and post my results.
Cheers!
@Olexandr_Gudozhnik Gotcha… well, either way, you’ll need to figure the offsets for your XYZ endstops and have them entered in your [Geometry] section. As mentioned they should be entered as negative numbers.
Ok, got it right. My offset_* are now equal approximately -max_height, and I can make adjustments to them with M206. Apparently, “home_z” had nothing to do with actual calibration
Thank you all for your help!
@Olexandr_Gudozhnik excellent! As far as home Z, the guys tell me to make sure my carriages don’t sit on the endstops when it’s homed…that’s why I pull mine down about 15mm…
Be careful, lots of things have changed in Redeem’s [Delta] section too. You’ll need to subtract the value in hez from r and remove hez (it’s gone). If you have any probe at all you can probe with G33 to get all the values for your printer (endstop offsets, delta radius, tower offsets…). Come and ask if you need help, there’s always someone ready to help, either here or on the Slack.