FlSun Kossel auto calibration. A concise guide? I am fairly experienced at 3d printers, but new to deltas. I just completed a build of a FlSun Kossel XL and printed a calibration cube after basic manual build plate leveling. While I have the plate fairly level, there is no way I can print a large item without a lot of time or getting auto leveling working. I have read a LOT about it, but can not find a concise guide of exactly how to get this working. Using the stock Marlin firmware that shipped with the printer, adjusted for correct height. So far I have homed the machine and issued G29. This hits 9 calibration points on the bed, then goes to center and parks about 4 mm above the build plate. If I try to start printing at this point, it starts printing in mid air. This is the type that the hot end is the probe and pushes up on a micro switch. What exactly do I have to do to translate my fairly level, perfect height in the center print to auto calibrate before prints? And not start printing 4 mm above the build plate? I did try issuing a g92 with what I thought the offset of 4.4mm was .. that didn't do anything. Thanks for the help. Looking for a step by step to get this right and go about my business .... - Jim https://reprap.org/forum/read.php?178,733029,733029#msg-733029 Thu, 10 Sep 2026 06:54:26 -0400 Phorum 5.2.23 https://reprap.org/forum/read.php?178,733029,735063#msg-735063 Re: FlSun Kossel auto calibration. A concise guide? https://reprap.org/forum/read.php?178,733029,735063#msg-735063 www.3dprintersonlinestore.com]]]> Anonymous User Delta Machines Mon, 02 Jan 2017 22:27:12 -0500 https://reprap.org/forum/read.php?178,733029,734255#msg-734255 Re: FlSun Kossel auto calibration. A concise guide? https://reprap.org/forum/read.php?178,733029,734255#msg-734255 jamesmoe Delta Machines Fri, 30 Dec 2016 17:26:52 -0500 https://reprap.org/forum/read.php?178,733029,733767#msg-733767 Re: FlSun Kossel auto calibration. A concise guide? https://reprap.org/forum/read.php?178,733029,733767#msg-733767
Quote
jamesmoe
Do I place a M320 then G29 Px Bx in the slicer starting code? Do I manually execute the M320 G29 prior to starting a series or prints as in it will stick till I reset the printer?

Yep I stick the G29 in the slicer starting code.

I'm pretty sure it sticks until you home again (at least in Marlin it used to do this, in Repetier it sticks even after a home).

More instruction on how I did it are here:
[www.thingiverse.com]]]> nebbian Delta Machines Thu, 29 Dec 2016 08:47:38 -0500 https://reprap.org/forum/read.php?178,733029,733508#msg-733508 Re: FlSun Kossel auto calibration. A concise guide? https://reprap.org/forum/read.php?178,733029,733508#msg-733508
[www.aliexpress.com]]]> LVD Delta Machines Wed, 28 Dec 2016 08:20:27 -0500 https://reprap.org/forum/read.php?178,733029,733445#msg-733445 Re: FlSun Kossel auto calibration. A concise guide? https://reprap.org/forum/read.php?178,733029,733445#msg-733445 spinor Delta Machines Wed, 28 Dec 2016 04:52:39 -0500 https://reprap.org/forum/read.php?178,733029,733391#msg-733391 Re: FlSun Kossel auto calibration. A concise guide? https://reprap.org/forum/read.php?178,733029,733391#msg-733391
It is almost as if the bed is concave .. but I put glass on top of the aluminum plate to ensure a perfectly flat surface. What am I missing? Obviously people have got this right, there are just no clear step by step for us new to deltas.

Help!]]> jamesmoe Delta Machines Tue, 27 Dec 2016 23:09:49 -0500 https://reprap.org/forum/read.php?178,733029,733335#msg-733335 Re: FlSun Kossel auto calibration. A concise guide? https://reprap.org/forum/read.php?178,733029,733335#msg-733335 jamesmoe Delta Machines Tue, 27 Dec 2016 15:29:01 -0500 https://reprap.org/forum/read.php?178,733029,733204#msg-733204 Re: FlSun Kossel auto calibration. A concise guide? https://reprap.org/forum/read.php?178,733029,733204#msg-733204 LVD Delta Machines Tue, 27 Dec 2016 05:41:50 -0500 https://reprap.org/forum/read.php?178,733029,733147#msg-733147 Re: FlSun Kossel auto calibration. A concise guide? https://reprap.org/forum/read.php?178,733029,733147#msg-733147
Thanks for the help. I am a lot further now.]]> jamesmoe Delta Machines Mon, 26 Dec 2016 20:45:37 -0500 https://reprap.org/forum/read.php?178,733029,733108#msg-733108 Re: FlSun Kossel auto calibration. A concise guide? https://reprap.org/forum/read.php?178,733029,733108#msg-733108 jamesmoe Delta Machines Mon, 26 Dec 2016 14:47:09 -0500 https://reprap.org/forum/read.php?178,733029,733104#msg-733104 Re: FlSun Kossel auto calibration. A concise guide? https://reprap.org/forum/read.php?178,733029,733104#msg-733104
The escher 3d method is not exactly what I was hoping for. I am just unsure how to use the auto leveling function and getting it to translate into proper starting height and starting the print. And what exactly do you do with the output of the escher calculator?

This is kind of frustrating as I have become pretty skilled at the Cartesian bots .. this is a whole new thing :)]]> jamesmoe Delta Machines Mon, 26 Dec 2016 12:34:53 -0500 https://reprap.org/forum/read.php?178,733029,733073#msg-733073 Re: FlSun Kossel auto calibration. A concise guide? https://reprap.org/forum/read.php?178,733029,733073#msg-733073
[forums.reprap.org]]]> LVD Delta Machines Mon, 26 Dec 2016 06:52:38 -0500 https://reprap.org/forum/read.php?178,733029,733052#msg-733052 Re: FlSun Kossel auto calibration. A concise guide? https://reprap.org/forum/read.php?178,733029,733052#msg-733052 escher3d.com]
More details about how it works: [github.com]
If you do it right and your printer is otherwise solid you will be able to level the bed to precision of about ± 2 microsteps (or ± 25 µm if have 80 steps per mm). But precision of about ±50 µm is enough for good results. At the end, the final precision depends on how well your towers are perpendicular to your bed which is the think the above approach does not properly correct for. It's correction by chaning ednstop adjustement works only partially. Also make sure your arms have equal length (but that is easy to achieve if you built them in a jig).]]> hercek Delta Machines Mon, 26 Dec 2016 04:55:54 -0500 https://reprap.org/forum/read.php?178,733029,733029#msg-733029 FlSun Kossel auto calibration. A concise guide? https://reprap.org/forum/read.php?178,733029,733029#msg-733029
While I have the plate fairly level, there is no way I can print a large item without a lot of time or getting auto leveling working.

I have read a LOT about it, but can not find a concise guide of exactly how to get this working.

Using the stock Marlin firmware that shipped with the printer, adjusted for correct height.

So far I have homed the machine and issued G29. This hits 9 calibration points on the bed, then goes to center and parks about 4 mm above the build plate. If I try to start printing at this point, it starts printing in mid air.

This is the type that the hot end is the probe and pushes up on a micro switch. What exactly do I have to do to translate my fairly level, perfect height in the center print to auto calibrate before prints? And not start printing 4 mm above the build plate? I did try issuing a g92 with what I thought the offset of 4.4mm was .. that didn't do anything.

Thanks for the help. Looking for a step by step to get this right and go about my business ....

- Jim]]> jamesmoe Delta Machines Sun, 25 Dec 2016 23:46:16 -0500