BLTouch nightmare

JoergS5

@Vulrath about the topic 2:
all measurement has a tolerance: stepper position at startup, endstop triggering (x,y,z), your bed position may be different etc. I meant with the point, you should not trust the state at power on, e.g. stored positions (e.g.: the stored mesh points refer to X Y positions, and they were set with a given endstop measurement). The error may be very small, so it will probably not be the reason, because 2 mm is a much higher error.

When you have stripped down the process, please post config and homeall files. If possible, please make a video (e.g. a 20 second youtube video) of the error behaviour, this would help much to see what could be wrong.

One possible additional reason can be, that you run homeall and then heat up the hotend (M104 doesn't wait for heating up). The homeall should be done when bed and hotend are already heated up.

fcwilt

Hi,

I use the BuildTak FlexPlate System on my two printers.

They both have genuine BLTouch v3.0 devices and they work just fine.

Frederick

Vulrath

@JoergS5 OK, this makes sense to me now. Thank you. I will try to hammer out some of this stuff over the next few days and repost. Thank you for your help with this!

Vulrath

@fcwilt This is good to hear!

Vulrath

@JoergS5 Here are the marlin config files, I'm pretty sure this is the firmware i loaded last.wasnt sure what the homeall file was called , maybe its this HAL.h?
[0_1598381720358_HAL.h](Uploading 100%) [1_1598381656589_Configuration_adv.h](Uploading 100%) [0_1598381656583_Configuration.h](Uploading 100%)

hmm doesnt seem to like these files.

doh gonna have to make smaller vids, ill be back later

Phaedrux

I guess we don't get many .h files uploaded here. You could change the extension to .g and they should upload ok as gcode files. Or change them to .txt.

Vulrath

@Phaedrux Thank you! I'll try that.

Vulrath

@JoergS5 configuration.h file Configurationh.txt

configuration_adv.h file Configuration_advh.txt

videos shortly

Vulrath

@JoergS5 I'm not sure how to make smaller videos. 4mb is a very small limit with todays smart phones and the HD quality of them. or maybe i just dont know how to use it properly. any way to shrink the size drastically , but the video still clear enough to see whats happening?

JoergS5

@Vulrath Maybe you can find an app to make videos with low resolution for youtube. Are you using Android or iPhone, or something other?

I looked into the config files, but I must confess that it's difficult to read if one is used to the Duet config files. Maybe someone can help who knows marlin files.

Are there homing files in marlin or is the procedure you described above a manual process?

Phaedrux

vimeo might be the easiest way to share video.

Vulrath

@JoergS5 I understand, I'm on a Duet forum asking for marlin help, so its ok that your not familiar with it. I have an android. I dont seem to find any homing files, it seems this is a manual process.