Geeetech

All the heatbed wires are insulated as sent by the seller, no short circuit is present. After reading a lot about this topic I can say:

At the beginning of the topic I told you that the heatbed resistance is too low (0.2 ohm) compared to normal values (1 - 1.5 ohm). Considering the voltage provided ...

Your questions should be clear in order to optimize the time, sending you the photos. Hope the photos will solve the problem

As indicated in the link sent by the seller:
http://www.geeetech.com/wiki/index.php/ ... n%288mm%29
I answered your question?

I updated successfully the firmware of 3D printer following all the steps in the link: http://www.geeetech.com/forum/viewtopic.php?f=20&t=16253 and using the firmware sent to my email by Cheung.Weng@geeetech.cn
When I turn on the printer it was ok, all the motors was working fine, then i turn on the ...

I tried to update the firmware following the steps in the link you sent me: http://geeetech.com/forum/viewtopic.php?f=20&t=16253
but at the verification step arduino shown a error:

core.a(main.cpp.o): In function `main':
C:\Users\Javier\Downloads\3D printer\Firmware\arduino-1.0.1\hardware\sanguino ...

can you send the correct firmware? My printer type was described in my last post, thanks.

GEEEtech-PI3A
2. The default is 0.3mm nozzle for 1.75mm filament.
3. The default board is Sanguinololu
4. The default stepper driver is A4988
6.The default Display is LCD2004.
http://www.ebay.com/itm/Free ...

GEEEtech-PI3A

2. The default is 0.3mm nozzle for 1.75mm filament.

3. The default board is Sanguinololu

4. The default stepper driver is A4988

6.The default Display is LCD2004.

http://www.ebay.com/itm/Free-Shipping-N ... 1707158231

I measured the heatbed resistance exactly as you recommended, but the resistances is 0.2 ohm, as i mentioned before. Anyway i will try to update the firmware...

how to test the heatbed resistance correctly (may be: disconnecting the heatbed from the sanguinololu, then removing the 1 kohm resistor, and measure the resistance of heatbec)? How to re-upload the firmware? Thanks

The termistor resistance is 68 ohms. Controlling the heatbed temperature by LCD (USB disconnected): I set the bed temperature to 40 C, then the printer restarted, and LCD shown Err: MINTEMP. Same results as described before by controlling the temperature by software REPETIER. Is correct that the ...