Benbox Laser Machines/CO2 Lasers/3D Printers

You need a Logic Level Converter (https://www.sparkfun.com/products/12009). 
But I'm not sure that it will works with PWM signal pin. 

I'd like to build an controller shield that sit on top of mega 2560 like the RAMP board
It'll be made specifically to laser machine

I'm planned to create my custom controller board as well as my machine's structure. It's all DIY.
I want to add jog keys, e-stop, homming, weak laser mode switch and wireless communication.


My experiment:
-with grbl 1.1d + 328P UNO (clone) and FTDI chip: the stepper motor move like when you accelerate a car or motorcycle (speed gradual increase/decrease till reach target; I don't know how to explain please excuse my English
-with grbl 1.1d + mega2560 (clone) and CH340 chip: stepper motor move in steady speed.


But I just break my Rx0 serial pin of my mega2560 as used as a programmer to burn ESP8266 firmware.
Breaking somethings is a part of fun of building somethings.


ps. I'll write my own software as well. Coding is easy you can find the sample code on the internet. But the hard part is design the gui.
You need to think like you are user. The flow of using your software and how convention to use your software.
Why do I care? Because I plan to release it as an opensource. 
If you can't write the code don't worry I'll write it for you but at lease you build it yourself (hint: Do It Yourself).


Have a good day to all! 

@Lob thanks for the info 

Definitely interested, I have a Mini-Mega adapter to L7 board that really needs a 1.1d build. I have been playing with it and getting no place.

First build successful. Now to change some options!

A couple of questions Did you increase segment buffers or Block buffers in the code or should I use the override settings in config.h?


Thank You

I'm sorry Lob, I've no idea about segment or block buffer, to answer you No I've not change any code except cpu_map.h and some relevance files.
May I ask what is the benefit of increasing it?


-parnz

For anyone who interested in grbl 1.1d on mega2560 I publish to my github here https://github.com/parnz/grbl-mega2560


Disclaimer: I not responsible to any damage to your car, your house your girlfriend , your...whatever. Use it at your own risk.
 


Thank everyone.

I have not installed "I" as yet, I always have to uninstall then reinstall T2. It will not install over the older version for me.

Same here. just install 1.3i recently.

I'm think about the wireless jogging joystick project....