ATOM 3D Printer Group 造訪社團 » 用戶發文

Check thermistor connector
Without loose
If there is no loose
It may be bad

Also check if there are any short between thermistor , heater and hotend.

We checked the wiring, nothing loose. Anyway to check short?

https://www.youtube.com/watch?v=dQ5B715tO4M

also measure the resistance on the thermistor
It might open circuit or broken

check the soldered spots first, it could be loose some where.

FYI - I had the same problem this morning but it recovered after set the temp in prontoface

In order to check soldered spots, do I have to cut open the black Heat-shrink tubing?

Lien Ted: Thanks, let me try to connect with prontoface.

Lien Ted: What Baud Rate you set to?

I used 250000. Click "set" and I had luck.

Lien Ted: When I click Set, this button not gray out (yours gray out) .

Winston Shieh yours is right. Mine grey out is due to disconnection.

When I click connect, I got the error
Connecting...
start
Printer is now online.
echo: External Reset
Marlin 1.0.0
echo: Last Updated: Apr 21 2015 17:52:06 | Author: (jcrocholl, Mini Kossel)
Compiled: Apr 21 2015
echo: Free Memory: 3777 PlannerBufferBytes: 1232
echo:Stored settings retrieved
echo:Steps per unit:
echo: M92 X160.00 Y160.00 Z160.00 E200.00
echo:Bed Level Matrix :
3.644 3.644 3.644 3.606 3.669 3.669 3.669
3.900 3.900 3.963 4.038 4.125 4.219 4.219
4.088 4.125 4.250 4.538 4.663 4.788 4.900
4.150 4.313 4.556 4.881 5.181 5.356 5.463
4.181 4.475 4.825 5.219 5.600 5.825 6.013
4.563 4.563 4.975 5.469 5.863 6.175 6.175
4.981 4.981 4.981 5.463 5.944 5.944 5.944
echo:Maximum feedrates (mm/s):
echo: M203 X300.00 Y300.00 Z300.00 E300.00
echo:Maximum Acceleration (mm/s2):
echo: M201 X3000 Y3000 Z3000 E9000
echo:Acceleration: S=acceleration, T=retract acceleration
echo: M204 S9000.00 T9000.00
echo:Advanced variables: S=Min feedrate (mm/s), T=Min travel feedrate (mm/s), B=minimum segment time (ms), X=maximum XY jerk (mm/s), Z=maximum Z jerk (mm/s), E=maximum E jerk (mm/s)
echo: M205 S0.00 T0.00 B20000 X20.00 Z20.00 E5.00
echo:Home offset (mm):
echo: M206 X0.00 Y0.00 Z0.00
echo:PID settings:
echo: M301 P16.54 I1.30 D52.56
Error:0
[ERROR] Error:0

: Extruder switched off. MINTEMP triggered !
Error:Printer stopped due to errors. Fix the error and use M999 to restart. (Temperature is reset. Set it after restarting)
[ERROR] Error:Printer stopped due to errors. Fix the error and use M999 to restart. (Temperature is reset. Set it after restarting)

echo:SD card ok

Anything wrong?

check the thermistor connection anyway, it's not detected.

I had the same issue but now solved, you could removing all 8825 boards(the red ones to power up the step motors) and plug the entire board with computer to see whether it's working

Thank you for sharing your experience. However, I removed all board connections, only keep power red and black. Try to connect to computer, cannot see the port. Plug all connections back, LCD still dark.

How about remove the 12V power, only usb connect to the board not working, either?

Clarence: You mean just remove the red and black power lines, or remove all connections including power lines? Will the USB connection to the computer provide power to the board?

On my Win7.1 system my Device Manager never shows the printer at all, even when it is connected to Pronterface. Instead I see, under USB devices, something called a Serial Port Emulator. But I can still connect to the printer OK by specifying the proper Serial port. On my system, I have Serial ports 1 & 3 and the printer is on #3.

It should be power up the board function when only USB connected.
It would be detect as a FTDI usb to serial port device as COM* . if you have FTDI virtual com port driver installed.

I remove all connection and still cannot connect to the board from my computer, cannot see USB/COM port at all. What should I do next?

Hello, Winston. I just sent you the email to solve the problem, please let us know if the problem is solved, and I will compile all the solutions for future users. :)

I just downloaded and installed the FTDI USB to Serial driver from this site:
http://www.ftdichip.com/Drivers/VCP.htm
and now I can see my Atom2 in Device Manager on COM3.
The driver is WHQL Certified so there should be no problem installing it on any Windows system.

Birk: Thank you. I installed the FTDI USB to Serial driver on 2 Windows 7 laptops, still cannot detect the printer USB. I need to get the LCD go dark issue solve.

Is there a photo about the fall off "magnetic bearings"?
Another photo needed for the controller board.
Is it still accessible via Pronterface?

The gcode not correct? looks like moving out of the printable area.
Did you tried the test files ?
https://www.facebook.com/groups/atom3dp/1586312731607016/

Good question. I never used either piece.

on the wires touching the end of extrusion. it act as a protection layer against the sharp edges