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check door alarm?

Hi

I have been cutting fine on my laser for months and today I was working on a project and the laser stops at random intervals.

here is my console output

G1X110.3Y54.8
G1X109.57Y53.09
G1X108.79Y51.41
G1X107.97Y49.74
G1X107.11Y48.1
G1X106.21Y46.47
[MSG:Check Door
[MSG:Check Door
Door:2|MPos:134.682,26.554,0.000,0.000,0.000|FS:0,0|WCO:0.000,0.000,0.000,0.000,0.000
Stream completed in 3:13
Port opened, waiting for response.

no idea where the Check door has come from.

mini GRBL controller

Hope someone can help

thanks

Hi,

Some power supplies are noisy and can cause intermittent behaviour. You can install a 1 microFarad non-electrolytic/non-polarised capacitor between the 5V and ground terminals at the power supply or set JP1 from 5vExt to 5vUSB. This usually helps with reducing and filtering excessive electrical noise.

Also move the Mini Gerbil away from the power mains wires to minimise any pickup of spikes on the mains.

Please let me know if this helps

Thanks Paul

Cheers, Paul awesome.tech

 

Quote from Paul DeGroot on June 8, 2020, 9:35 am

Hi,

Some power supplies are noisy and can cause intermittent behaviour. You can install a 1 microFarad non-electrolytic/non-polarised capacitor between the 5V and ground terminals at the power supply or set JP1 from 5vExt to 5vUSB. This usually helps with reducing and filtering excessive electrical noise.

Also move the Mini Gerbil away from the power mains wires to minimise any pickup of spikes on the mains.

Please let me know if this helps

Thanks Paul

do you have anymore details on how to do the cap fix? Im not great at electronics but I can certainly use a soldering iron

Hi Rommel, the mini Gerbil does have noise suppressors on the board. The additional filtering can be done via adding a 1 uF cap between the +5V Dc and Gnd terminals at the Laser Power supply. So no soldering required when you have a power supply with screw terminals.

Non-polarised cap means that it does not matter which side goes to what terminal.

For more tech savvy people here is a great write up on low pass filters https://ecstudiosystems.com/discover/textbooks/lessons/AC/chapter8-2-low-pass-filters/

You could make one yourself with a coil and cap (cheap components) to filter out noise. Ideally you need a scope to see what frequency the noise is. It could be even feedback from the High Voltage generation part of the power supply (250-500Hz)!

Enjoy

Cheers, Paul awesome.tech

has anyone done this?

the distuption to my laser is when i either turn on my lights or if i switch the compressor on

 

It would be better if someone could show me or send me some instructions. I know where the 5v lines on based on a wiring diagram but would have no idea how to install the Cap

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