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vlachoudis / bCNC

GRBL CNC command sender, autoleveler and g-code editor
GNU General Public License v2.0
1.57k stars 533 forks source link

USB Connection fails #656

Open student1704 opened 7 years ago

student1704 commented 7 years ago

The USB serial connection fails after a while. It it isn't possible to reconnect except EEPROM contents is deleted by ARDUINO IDE

I work with GRBL 1.1 and W7 64 bit Has anybody a hint?

chamnit commented 7 years ago

USB disconnect has to do with electrical noise and it interrupting the communication between Grbl and the host computer. You fix it by shielding your USB cable from powered cables and other sources. And use a good quality cable with a ferrite core.

student1704 commented 7 years ago

It is. But may be the switching PS is to closed to Arduino.

Giochia commented 7 years ago

I had a similar problem, and after many tries, I found that it was the electrical motor powering the spindle that was introducing a lot of electrical noise. Try to disconnect the motor, and ensuring the bit does not hit any surface, and see if the problem persists. If it goes away, then you know what the cause is and you have to proceed with mounting a filter to the motor (capacitors).

student1704 commented 7 years ago

Thanks so far. I will try that and keep you updated. Just give me some time.

student1704 commented 7 years ago

It is very strange. The error doesn't occur during the job runs. It occurs while jogging. With other GCODE sender it works independent from other failures they have.

Harvie commented 5 years ago

is this still a problem?

vadimyar commented 3 months ago

SOLUTION (possibly...)