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makerbase-mks / MKS-SBASE

MKS SBASE is a powerful 32-bit 3D printer control board with LPC1768. Support Marlin2.0, Smoothieware. Support MKS LCD12864 and MKS TFT Touch Screens（SBASE V1.4 support MKS LCD12864A/MINI12864/LCD2004）. The motherboard integrates 5 DRV8825 axis and it is use software set current, supports wired network for printing and supports firmware update by SD card…
https://www.aliexpress.com/item/32384368763.html?spm=2114.12010612.8148356.13.f6ef39440hYPmP
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Board freezes when extruder heat is turned on #91

Closed HugoW1975 closed 5 years ago

HugoW1975 commented 5 years ago

Hi,

my board was functioning but now it has a problem. When the heat it turned on for the extruder, the board freezes. When I start the printer, I can move all axis from the TFT screen, perform home function, etc. As soon as I ask it to preheat, it stops working. The LEDs keep blinking away happily, but the motor-hum stops. The axis do not move anymore, the tempsensor reads zero degrees C on the screen, etc. When I restart the machine, same thing. Everything works until I heat the extruder. I can also run a full print sequence from the SD card as long as I take the heating lines out of the g-code file (and remove fillament because the extruder stays cold). My hotend is working OK, I measured it and tested it on direct power from the 24V power source, the sensor provides good readings.

So, something is amiss on the board. What could it be, where do I start looking? Cheers,

Hugo

makerbase-mks commented 5 years ago

This may be because the heating head failed to heat up, causing the motherboard to freeze. Is there any error return when the motherboard freezes? You can check if the thermal installation is secure and there is no loosening. Or set the heating time longer. The collective can refer to these settings, such as“Runaway detection”“Initial heat-up runaway detection” http://smoothieware.org/temperaturecontrol?s[]=temperature&s[]=control&s[]=bed&s[]=set&s[]=code

HugoW1975 commented 5 years ago

The heater is in perfect working order. The system has worked for about a year (not counting the countless fails on longer prints). Today I hooked up another control system and the heater performed well. It is for me the final fail of this board, I'm tossing it out. Too many fails on longer prints (100% fails on everything over 3 hours) and now this, I've had enough. I just want to print..

Hugo

HugoW1975 commented 5 years ago

It proved to really be a fault on the board. I readdressed the IO to a different port (routing E0 to where E1 should be, and physically connecting it there too) and now that works again. The Original E0 control is just dead on the board...

podarok commented 4 years ago

I have MKS SBASE v1.3 and faced with same issue, but in my case changing from E0 to E1 didn't help.