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George Fetters
Attended Southeast Missouri State University
Lived in St. Louis, MO
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George Fetters

Smoothieboard Modification  - 
 
Ok I am getting close. I have the X and Y working correctly and the laser firing. I am getting faint lines between the letters when I etch. Its like the laser is not completely off. I am using an opticoupler to fire the laser it is driven from pin 2.5 inverted signal. The 5v and L are from the powersupply. I suspect that for some reason I am not getting a clean 5v so the laser is on at a very low level. Do I need a resistor across the 5v and L to put the signal high? 
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George Fetters's profile photoDon Kleinschnitz's profile photo
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+George Fetters awesome!
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Hey we have a 3D Printer and 3D Scanner Meeting this Thursday! You should stop by and see us.

http://www.meetup.com/Inventor-Forge-Maker-Space/events/228671500/
3D Printers - Its all cool. I believe George mentioned he is also going to bring his 'in need of some retrofitting' CNC router. This meeting doesn't have a formal agenda, bring a 3D printer if you want, check out others doing some printing.
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George Fetters

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Hey we are starting a new maker space in St. Charles, MO! We are supporting STEAM initiatives and are interested in robotics, arduino, raspberry pi, and all things Maker.

http://www.inventorforgemakerspace.org

Find our meetings on meetup too.

http://www.meetup.com/inventor-forge-maker-space/

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George Fetters

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May the 4th be with you!
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George Fetters

Smoothieboard Modification  - 
 
New issues to solve! Yeah!

I have solved the issue with my x and y home. The issue turned out to be my home made adapter for the ribbon cable. There were 2 ground wires in it that needed to be wired together on my adapter and fed out to the controller. I have 2 more issues to solve and then I will be cutting.

1. The laser does not fire when I send gcode to it. I am using gcode generated out of inkscape firing on command M03. I am not sure if I need to set something on the config for that or not. I am using pin 3.26 on the Azteeg mini x5 to fire and running that through a 3.3v to 5v bidirectional logic level converter out to L on the powersupply.

2. If I hold down the test button I can etch. I noticed that the cut is backwards and upside down. I'm sure there is a way to solve this. Do I need to invert the X and Y direction in the config file?

Thanks for all your help
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Peter van der Walt's profile photoGeorge Fetters's profile photo
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Ok I think I have figured out why the laser is not firing. I switched to using G1 and G0. This did not fix the problem. I am using an Azteeg X5 mini and apparently there are just 3 pins that provide pwm. All 3 of these pins pass the reference voltage from the power supply out the pwm pin. My powersupply is 24v. To do this right I think I need an optical-isolator that can be controlled using 24v to control the 5v from the powersupply to L. Is anyone else controlling their laser this way?
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George Fetters

Smoothieboard Modification  - 
 
Having trouble with my k40 smoothie conversion. When I press X home it moves in the wrong direction. when i move X minus it moves in the right direction x home moves away from the minus direction. I am not sure what is wrong.

Y home moves in the right direction and y minus and y plus does too.
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Ariel Yahni's profile photoGeorge Fetters's profile photoScott Marshall's profile photo
11 comments
 
You should have the X optical limit switch connected to Xmin Pin 1 and Ymax pin 1

What you may need to do to your Config file depends on where you got it. You want to set X to min and Y to max. Logic needs to be inverted on both if I recall without looking.

If you send me your Email, I will send you a Copy of my EZConfig - it's all set up to work with K40 and has built in instructions.

Never edit a Config file with Notepad or Wordpad. Use Gedit (opensource and free)

ALLTEK594@aol.com
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George Fetters

Robot Party Discussion  - 
 
I haven't been here in a while. I have a question for all of you. I am creating a new telepresence robot for our new makerspace, Inventor Forge and I am looking for a set of libraries that will let my android tablet talk to an arduino. I found this library on github called pocketbot. I am wondering if any of you have used this or if there is a better library I should be looking at?

https://github.com/frankjoshua/PocketBot
Arduino interface for Android PocketBot app
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John Anderson's profile photoWinston “myblack60impala” myblack60impala's profile photoGeorge Fetters's profile photo
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Awesome thanks!
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We are having an Arduino Meetup this weekend. Hope you can attend!

http://www.meetup.com/Inventor-Forge-Maker-Space/events/228671447/
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Hi everyone. We are starting a new Maker Space in St. Charles, MO and I can use your help. We do Arduino, Raspberry Pi, Robotics, and 3D Printing. We hope to create video tutorials as well as offer free classes on all these subjects in the future.

I have recently created a Meetup for our group and paid for it but I can't seem to get it to rise in the rankings. If you are interested in our classes or are just willing to help us get the meetup going please signup here.

http://www.meetup.com/Inventor-Forge-Maker-Space/ 
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This is a quick video of our new Gumballicious App.
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Data Warehouse Developer, Entrepreneur, Iphone App Developer
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St. Louis, MO - Detroit, MI
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I am trying to live by this poem and its not always easy. .......................................... So live your life that the fear of death can never enter your heart. Trouble no one about their religion respect others in their view, and demand that they respect yours. Love your life, perfect your life, beautify all things in your life. Seek to make your life long and its purpose in the service of your people. Prepare a noble death song for the day when you go over the great divide. Always give a word or a sign of salute when meeting or passing a friend, even a stranger, when in a lonely place. Show respect to all people and grovel to none. When you arise in the morning give thanks for the food and for the joy of living. If you see no reason for giving thanks, the fault lies only in yourself. Abuse no one and no thing, for abuse turns the wise ones to fools and robs the spirit of its vision. When it comes your time to die, be not like those whose hearts are filled with the fear of death, so that when their time comes they weep and pray for a little more time to live their lives over again in a different way. Sing your death song and die like a hero going home. by Tecumseh chief of the shawnee nation
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Ipad App Developer, Circuit Programmer, Photographer, There's a box?
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  • Southeast Missouri State University
    Computer Science, 1986 - 1989
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Black Talon, Quake Angel
Awesome Lego Class. Loved it!
Public - 10 months ago
reviewed 10 months ago
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