OctoPi Tutorial for Zim

#125

The second fan might cause this behaviour.
In my ZIM, the fan duct was deformed from the heat radiation of the hotends, so that there were big gaps between the two parts. When the second fan started, it cooled down my hotends.
I closed the gaps with epoxy and the problem was solved until I got my heatbed. That melted the cooler outlets completely, so I removed the funnel completely, including the second fan. Printing still works.

Try the M303 command to calibrate the energy of your hotends: TomĀ“s Hardware (MarlinĀ“s PID Autotune)

#126

@Totyo, Sounds like the second fan running is the cause. 100% it will likely never reach temperature. Anything over 50% is usually too much. See this post on how the fan affects
temperature: Zeepro temperature PID values too conservative? Fan design is part of the problem

You do not want the fan running when heating or laying down the first layer. Simplify3d allows you to specify fan speed on a layer-by-layer basis. Just set the fan to 0 on the first layer (and remove any custom fan gcode in your startup as well).

#127

@jpod : thank you very much for your reply, removing the fan on 1st layer did the trick. I have been able to successfully print a basic cube, which is a great first step. Now I need to fix a problem of offset between the skirt, raft and model that I have on another test model :smile:

@J_Schmidt : thank you for your help as well!!

#128

I have some extra questions about the OctoPrint / Zim. I can open a new thread if it doesnā€™t fit this thread.

  1. Does a G-ode exist to clean the nozzle just before the beginning of the print? On the Makerbot, it prints a 15cm line which clean the nozzle.
  2. Does some G-Code can be made at the end of the print to also clean the nozzle (retraction ?)
  3. Since the ZIM is a dual extruder, I think we have top specify in Simplify3D the distance between the two extruders in X and Y. Does anyone have the accurate specifications?

Thank you!

#129
  • switch to relative mode
  • G1 E150 F100
  • switch to absolute mode again
  • pretty the same as above but with a negative E value
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#130

Anyone else having issue with the original zeepro webcam on Octopi? My webcam image is intermittently replaced with a broken image icon in the octopi interface.

#131

No problems here, on 2 Zimsā€¦ You might want to double check your pi power supply provides sufficient current.

#132

Yes, had the same Issue, but switching to another USB Port solved it. Seems to be some small driver issue. ItĀ“s also important to have the Cam connected before powering up.
If this wonĀ“t help, try reflashing your SD-Card (maybe a corrupt file on your card?)

#133

You might be right, but Iā€™m a little surprised that my 1A power supply might not be sufficient.

I also tried listing the usb devices through raspbian from the command line. It doesnā€™t look like the camera is even recognized as a usb device.

I tried switching usb ports and rebooting the pi, but no change

#134

Iā€™ve had several ~1A usb power supplies that have been super flaky. Iā€™m not saying yours is, but I know that Iā€™ve run into issues running Raspberry Pis on some usb power supplies, despite the rating printed on the enclosure.

#135

Well, I bought a 2.5A power supply, and that didnā€™t solve the issue, so I tried the camera again directly in my laptop and it failed to install correctly. I was able to get it working on my laptop by unplugging it and plugging it in a few times, and after that it also seemed to work on the Pi. Seems like itā€™s the camera rather than the Piā€™s power supply at this point.

#136

So you use external power supplies? Why donā€™t you use the power from the zimboard?
This works perfectly and the Pi is powered on and off with the power key at the front of your ZIM.

#137

The Octopi setup tutorial i found on this forum uses an external power supply. It had occured to me to use the power from the Zim, but Iā€™m not sure how to go about that, exactly. There doesnā€™t appear to be a micro usb port on the zimboard, so Iā€™m assuming I would have to do some soldering to make this work?

#138

A couple of quick questions.

  1. Is anyone else interested in getting Octoprint running on the Zim A10 cubieboard?
  2. Does anyone know the default ssh user and password for the zim?
#139

1: YES, but only if it has advantages over the RasPi. The Pi itself is so cheap, the installation is easy and it runs so good that it might make little sense to switch to another board. Also, the Zim-integrated Cubieboard is not a really complete one, there are lots of connectors missingā€¦

2: No. :cry:

#140

I guess the main advantage is that it is already there, itā€™s connected and has the wifi drivers installed. I think itā€™s fair to say that it has all of the connections it needs. Itā€™s probably running debian.

#141

Iā€™ve detailed how to get root the Cubieboard over on the jailbreak thread for anyone whoā€™s interested.

1 Like
#142

Hello
i was just wondering if anyone has tried running octoprint on the zim from the new pi zero?
if so how did it work?
thanks

#143

I would guess the Pi Zero is a bit underpowered for OctoPrint, but it should runā€¦ if you add a USB hub and Wi-Fi dongle. I think Iā€™d probably just stick with a Pi 2 though:

#144

ok thank you i will look into it