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makerbase-mks / MKS-Robin

MKS Robin is a powerful 32-bit 3D printer control board with STM32F103ZET6 . Support Marlin2.0. Support MKS Robin TFT24/28/32... Screens. The motherboard integrates 5 AXIS interface, hot bed, 2 heating heads, 3 NTC100K, 2 MAX31855.Support MKS Robin WIFI for cloud printing.Supports firmware update by SD card…
https://es.aliexpress.com/item/32757129463.html?spm=a219c.12010612.8148356.9.5fc165f4oDUfFM
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MKS Robin Nano Z home direction revesed and not doing well in middle of work!! #192

Closed ArMaN2design closed 3 years ago

ArMaN2design commented 3 years ago

Hi... I have robin nano v1.1 whit drv8825 stp drv on it. whit last firmware online extracted working well. when the board was on and every thing was ok suddenly in between two job an issue happened to z direction home command. without restarting or any thing. when it began moving to home, it move reverse (upward here) for few mm and then stopped! and never go down again! I changed direction of home in .cfg file to 1 , it work well in its new direction. when put it to -1 again ,issue was there again. I change firmware many times, Even install marlin but issue was there, just like first time. changed stepper drive, try to control the board whit pronterface. but changed any thing/

can anyone help me fix this issue pleas?

3Dangel commented 3 years ago

Most likely your Z home sensor got stuck

On Fri, Nov 27, 2020 at 22:04 ArMaN2design notifications@github.com wrote:

Hi... I have robin nano v1.1 whit drv8825 stp drv on it. whit last firmware online extracted working well. when the board was on and every thing was ok suddenly in between two job an issue happened to z direction home command. without restarting or any thing. when it began moving to home, it move reverse (upward here) for few mm and then stopped! and never go down again! I changed direction of home in .cfg file to 1 , it work well in its new direction. when put it to -1 again ,issue was there again. I change firmware many times, Even install marlin but issue was there, just like first time. changed stepper drive, try to control the board whit pronterface. but changed any thing/

can anyone help me fix this issue pleas?

(sorry about my bad english) :(

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mks-viva commented 3 years ago

@ArMaN2design Hi! You can refer to 3Dangel's idea and check Z sensor. But I hope you can provide a video for me.

ArMaN2design commented 3 years ago

thanks very much. the problem was exactly from z endstop. the wire was broken from end of one pin. it s work fine now. thanks :)

mks-viva commented 3 years ago

This is good news, then I will temporarily close this issue.