I have created a github repository for a Laser Safety System that I am

Lasers
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1

I have created a github repository for a Laser Safety System that I am using on my K40 laser.

This was based upon some code from SigmaGgfx.

The schematic will be uploaded as soon as I find a few minutes to create it.

It monitors coolant flow, coolant temperature, and door interlock.

You can see the project at:
https://github.com/funinthefalls/LaserSafetySystem

2

Nicely done. Good to have these all in one place instead of piecemealing the warning/safety systems together.

Not sure if you can, but have you thought about adding sensors for exhaust fan on & air assist as well? Those won’t necessarily kill you or your laser but if they shutdown it can get dirty/messy in there.

3

I will be adding some code to this that will activate a peripherals board that controls exhaust, air assist, laser pointer, and lights, and returns the status of each one, and will give a visual and audible warning if there is a problem with any of them. My goal is to have the safety system and peripherals running on a custom PCB.

4

Good idea Peter.

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+Peter van der Walt would you be able to create a quick schematic for me? I haven’t used eagle cad in forever and I am sure you could probably bang this out in a few minutes. If you don’t have the time, I will make a quick and dirty one in CorelDraw.

6

Just the basic layout based on the pinouts in the readme file, and if you have time, the nand/and section. Take all the time you need , it’s almost 3am here in Niagara Falls, and I am off to bed as soon as I clear my emails for the day.

7

Thanks very much.

8

I’m really glad that my cobbled hack has grown some legs… I hope it becomes a most useful project. Thanks for taking the reigns Anthony.

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Glad you like it Jon!

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I’m following the repo if I find some time I’ll try to contribute.

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Thanks, any help is appreciated. Do you know how to use Eagle CAD? I would like to get a schematic posted, but it has been over 10 yrs since I used any CAD system.

12

I haven’t used eagle in a while… I designed a forklift controller but never had it etched… The last project I actually etched and built https://youtu.be/wz3TUkCHEJs was a simple board to replace the hand etched one I made for this clock project

13

+Peter van der Walt It’s not like you are sitting around… you’ve got countless projects boiling on the burners… You are an amazing fellow…

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Hi, Anthony Bolgar, do you mind to share the circuit wiring diagram for laser safety system ?

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The wiring instructions are in the start of the Arduino code as comments.

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noted. thank you

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Dear mr Anthony, i would like to know, why do i have error like this “no matching function for call to 'LiquidCrystal_I2C::LiquidCrystal_I2c”, i have included the i2c library for your information. have you encounter this problem before.?

18

Oh, and Anthony… That’s Mr. SigmazGFX