Moving this out of @caddad thread.
I have never been able to get my 4.0 horizontal setup to work despite many tries, both manual and auto calibration. Last attempt is above with video and serial logs.
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I got everyone in that thread mixed up so I responded here:
I don’t have 4.1 - only 4.0 - so clipping the headers on the encoders is not applicable.
If you watch the video I’ve uploaded, I’m doing everything by the book and yet the machine will not work properly.
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The video ends with the machine losing power for some reason. Other than that the calibration looked like it was going normally.
There’s sort of two options. Either
A) The machine loses power (all the lights including the green one turn off) regularly. If that is the case then we need to look for a power issue.
or
B) That doesn’t happen regularly and there is some other issue going on in which case it would be great to get a video of that issue other issue whatever it is.
@bar The calibration started, seemed to finish very quickly after only a few waypoints, then restarted on its own (see video at 2:24)
The 2nd calibration started with no user intervention. This one went on for much longer with waypoints measured up to waypoint 15 (see video 11:51).
At this point, I turned to look at the machine and it was dead.
I plugged it back in, had to retract all and extend all. Added a bit. Apply tension. Machine tells me center point is too far off and that I need to re-calibrate.
The loss of power happens randomly. It is not related to the outlet - I have something else plugged into that outlet and it never lost and never loses power.
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When the machine loses power, what does it take to get the green power light to come back on?
If you unplug and re-plug just the outlet side (without touching the machine itself) does that fix it?
I’ve tried a few different ways each time this happened - unplugged from outlet, unplugged the power cord from the brick, unplugged at the board. All 3 options worked.
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Hmmm…That’s very confusing.
So disconnecting and reconnecting the power in any way will bring back the green light?
The reason that is confusing is that the green light is wired directly to the power supply so if it’s off it either means that the machine isn’t getting power from the power supply.
The power supply does have built in short circuit protection so it could also be detecting a short circuit somewhere.
I think that figuring out what is causing that issue is the first thing we need to do, but I haven’t seen anyone have an issue quite like that other than that link I posted to someone who had something similar happen with a 4.1 encoder board.
Is there anything that jumps out to you which could be causing a power connection issue?
@boslaw I have super sketchy power here. So I often run equipment through a UPS just to get the power cleaned up a bit. However, I’m also on 220/240v so that extra voltage provides its own ‘headroom’ for some of the other power issues I experience.
I don’t have super sketchy power. My power works just fine for everything else in my house.
My inclination is either that there’s a power supply issue, or an issue with the Maslow board itself. The outlet is fine (see previous post), my home power is fine, there are no other variables that I’m aware of that could be causing the problem. I’m not able to cut (so no dust to cause build up of static elec). I don’t even have a vacuum connected. I had something else plugged into the same outlet at the same time and that thing never lost power. Only the Maslow did.
I will try using another power cord connected to the power block to eliminate a loose connection as the cause.
My main concern is that even when not losing power, I still can’t get this thing to progress to cutting stage, whether I use manual frame measurements or auto-calibrated measurements.
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I think that the thing to try is to follow along with the walkthrough video and lets see where your process looks different from mine.
Once we figure out where things are going wrong we can fix them
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I did follow along last time but I’ll record my following after your new vid is posted.
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It’s up! You can find it here:
FINALLY calibrated and made my first cut! Thank you very much for the video.
What I learned:
My process was fine. Everything you did in your video was the same as I had previously done.
What really helped was watching and understanding that the various repeated failures and re-calibrations were normal. That can’t be stressed enough to newbies like me. Also, I think it’s important in the doc to mention that calibration won’t succeed until it’s above .4
I upgraded to v.105 prior to calibrating this time. Not sure if that made a difference.
I also note that the ESP doesn’t always respect new file uploads. I had to re-upload the maslow.yaml file 5 times (rebooting each time) before it finally recognized the new numbers from the 1.05 yaml file. Same with the index.html.gz file. Possibly this issue causes other people problems.
Now I have to go learn how to create gcode files so I don’t cut too deep in areas that I don’t want to 
Thanks again @bar @dlang and everyone else who chimed in with help.
First cut - trying to keep it super simple:
UPDATE - second cut, got part way through and started getting a bunch of position errors. Then the Maslow just stopped moving. It wouldn’t respond to commands (stop, Z height, etc). I had to shut it down.
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boslaw wrote:
I don’t have super sketchy power. My power works just fine for everything else
in my house.
We have had cases where the motion of the maslow has pulled on it’s power cord
and disconnected itself (at the board, at the power brick, or at the wall), when
tension is released, it reconnects.
David Lang
I get it. This didn’t disconnect like that because it hadn’t moved 