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Up-to-date Marlin firmware for the Aurora A5

by mgilardi

Hi all,

Stay tuned for more A5 firmware updates, we are actively working to get this open source. Currently working on getting the filament sensor to unload and load as expected.

I love feedback and collaboration, so please feel free to help it along!

https://github.com/GilardiLabs/Marlin/tree/JGAurora-A5

EDIT: We've released a solid firmware. See link above.

***NOTE: Please make sure to have a backup of your firmware (or JG's original HEX file) before proceeding with this. I take no responsibility for errors or issues, though I am here to help if I can. :)

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Mesh Bed Leveling on the A5 - How To

by DaHai8

Posted this video on setting up and using Mesh Bed Leveling on the JGAurora A5 3D Printer.
You'll need to install the latest Marlin Firmware update referenced in this group, and in the video.
https://youtu.be/CBlADPgQqL0
Hope everyone likes it and finds it useful.

DaHai

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WELCOME! :)

by mgilardi

This forum was created for the users and owners of JG Aurora's A5 3D printer. Here we can share information, insights, creations, questions, answers and more across the community of A5 owners around the world.

As a Thingiverse service, using this Forum also binds you to the same Terms of Use Agreement you entered into when you created an account on Thingiverse - specifically Sections 3.3 (a) & (b), i.e.: Please be Civil, so that Section 3.4 need not be applied.

If you are in need of replacement parts for your A5 printer, JG Aurora's web store can be found for the following service areas:
Within China:

  • JG Aurora's website
  • JD.com store
  • Taobao store

Outside of China:

  • JG Aurora's AliExpress store

If you need assistance (including company/warranty/service related questions), please contact @Anneqiu, a representative from JG Aurora (and also is a member of this group).

Posts are often automatically 'Flagged for Moderation'. This appears to be caused when they contain too much HTML, are edited too often, or are very long. To help prevent automatic flagging, compose & edit your posts offline to prevent multiple online edits; cut them into multiple posts if they are many dozens of lines long; and use this handy Markdown Cheatsheet to embed highlights, links, images, YouTube videos, etc, without the use of HMTL.

The contents of this document may change over time, so make sure to check back periodically.

NOTE: The content of this message was largely taken from @DaHai8's welcome for A3 owners, shown here: https://www.thingiverse.com/groups/aurora-a3-owners/forums/general/topic:17016.

Happy printing!

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can't upload a mod to the group things

by mottabadass

thingverse won't show this https://www.thingiverse.com/thing:3001569 on my things for uploading to the group things
anyone can help out?

Table leveling knob For the JGAurora A5
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can't upload a mod to the group things

by mottabadass

thingverse won't show this https://www.thingiverse.com/thing:3001569 on my things for uploading to the group things
anyone can help out?

Table leveling knob For the JGAurora A5
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What kinds of filaments can I use?

by repulsivefrog

I know the standard statement, which is PLA, ABS, and WOOD. I want to know if I can use other filaments. Such as metal, PETG, etc. and if you have successfully used them, can you share your Cura profile settings for them. (I am using the version of Cura supplied with the printer as I mess up when trying to do the newer ones.)

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radial fan vibration -> bad print cooling

by DJGummikuh

For some time now my radial fan used for print cooling is rather loud which prevents it from reaching the expected RPM, greatly reducing the print cooling. This causes extensive sagging and overall bad print quality.

Can you point me to a viable alternative? I googled around and found a set for the aurora a5 for both hotend fan and print fan but this appeared overpriced and I don't even need the hotend fan.

I did see some modifications somewhere that used radial fans that stuck out to the back (instead of being mounted flat onto the print head), can you recommend those?

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ONE DEAD A5 CAN ANYONE HELP

by Clackvalve

I have a JGAurora, It's about 6 months old. I turned the printer on and got the beep, as it normaly does on bootup. I then loaded a file from a usb stick, it loaded OK. When I looked in the Pre-heat folder both bed & Extruder read 0/0 despite after several minutes of pressing buttons I came to to the conclusion the printer was dead.

I cheked the PSU and all seemed OK, reading exactly 24v. As the screen was working I asumed the display board is working OK; After one and a half hours mooching around, I couldn't find any faults and decided to change the mother board. I Installd the new board, with no change. Getting desperate now, I changed the hot end heater and thermistor, and a new bed. Nothing changed. As a last desperate attempet I chaned all four stepper drivers too.

I downloaded Pronterface (A new program for me) and configured it for my setup. When I tried to connect all I got was.....M105 (I should say that I Have a good knowledge of ports seting up etc) I understand that M105 i think it means computer cannot conect to device.

Does anyone have any ideas?

Thanks, Ian

Just tried Ponterface again, I didn't get the usual M105

This is a dump:

Connecting...
[ERROR] Can't read from printer (disconnected?) (SerialException): call to ClearCommError failed
[ERROR] Can't write to printer (disconnected?) (SerialException): WriteFile failed ([Error 5] Access is denied.)
[ERROR] Can't read from printer (disconnected?) (SerialException): call to ClearCommError failed
[ERROR] Can't write to printer (disconnected?) (SerialException): WriteFile failed ([Error 5] Access is denied.)
[ERROR] Can't read from printer (disconnected?) (SerialException): call to ClearCommError failed
[ERROR] Can't write to printer (disconnected?) (SerialException): WriteFile failed ([Error 5] Access is denied.)
[ERROR] Can't read from printer (disconnected?) (SerialException): call to ClearCommError failed
[ERROR] Can't write to printer (disconnected?) (SerialException): WriteFile failed ([Error 5] Access is denied.)
[ERROR] Aborting connection attempt after 4 failed writes.
[ERROR] Can't read from printer (disconnected?) (SerialException): call to ClearCommError failed

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OctoPi in the A5 - Step by Step

by DaHai8

If anyone is curious about installing a Raspberry Pi running OctoPi and Pi Cam inside their A5, I've posted a video on YouTube on how to do that. It's pretty detailed, and longer than I wanted it to be, yet I still managed somehow to leave some points out. So read the comments section as well for additional tips from me and my viewers.
https://youtu.be/yR-B14vWdZg

JGAurora JGAurora_A5 OctoPi Pi Camera RaspberryPi
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Need help on bed and extruder

by Vinny_1012

(*fixed problem by replacing the extruder's thermistor)I got the a5 a couple of months back as my entry into 3d printing and it worked okay, but then all of a sudden the extruder got clogged leading me to take it apart, etc, then bed leveling just wasn't work leading me to mess with it, and after that everything was working fine, but now a new problem has appeared the hot end won't heat up and the display (not on custom firmware) is stuck at -15 degrees, as for the bed it doesn't heat up and the display has it at 25 degrees. I suspect that the thermistor and the heater on the hot end are broken and as for the bed, there's probably a short or some wiring problems, but as you can tell I'm not an expert. Any help would be much appreciated.

Help problem
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To small inner diameters for Models

by DJGummikuh

Hey! I have an issue with my prints where inner diameters are always too small, sometimes up to 2mm under specification. Outer Dimensions of Parts (both round and square) are always very precise but these too small holes are really causing me headaches.
I created this diameter gauge: https://www.thingiverse.com/thing:3719733 and would like to ask some of you to print it and tell me if they also have issues with diameter precision and - if not - if they have applied any specific tricks to solve that.

Horizontal expansion as provided by Cura (my main slicer) does not help since I can use it to fix the inner diameters but at the cost of destroying my outer dimensions precision.

Inner diameter gauge (2-20mm)
inner_diameter precision
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Thermal runaway issues

by BigMoff96

Does anyone know what type of connectors are used on the side of the A5 for the thermistor, heater cartridge, heat sync, and cooling fan connections? I am having trouble with my A5 throwing the Thermal runaway error after the first couple layers of a print. I had the temp set to 205 for the first layer and when the temp shifted down to 200 for the second it drops dramatically to 186 until the thermal runaway error is kicked in and stops the printer. I have tried replacing the thermistor twice as well as pid tuning both times. The first time solved the problem for a few weeks until today when it started doing the same thing again. I replaced the thermistor thinking it may be bad and even with the new one it is still throwing thermal runaway during a print. Does this sound more like a heater cartridge gone bad? Note that I only replaced the thermistor wire up until the plug in connection in the tube. Not all the way to the side connector like I plan on doing now. I believe its either the heater cartridge, the thermistor, or the connector on the board. My cooling fan does not blow directly on the nozzle or thermistor to cause the temp drop that initiates thermal runaway.

I am hoping someone else has had a similar problem and found a solution. Also, what gauge wire should I use to replace the old black thermistor wire and what connector is used on the side of the main body? I have jst connectors and the crimped on connection does not look like a typical female jst.

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