arnabdasbwn / grbl-corexy-servo

grbl 0.9i with Servo Motor support and CoreXY configuration Used For Crazy Engineer's Drawing Robot

grbl-coreXY-servo

Visit My Project DIY Guide Page : http://www.arnabkumardas.com

THIS IS BASED UPON https://github.com/robottini/grbl-servo and http://github.com/grbl/grbl

grbl 0.9i with Servo motor and Core[X,Y] Configuration of Motion Control

Use the PIN D11 to drive the servo. Use the commands M03 Sxxx (xxx between 0 and 255) to rotate the servo between 0-180. The command M05 turn the servo to zero degrees.

you can change the pulse duration in the file spindle_control.c:

define RC_SERVO_SHORT 15 // Timer ticks for 0.6ms pulse duration (9 for 0.6ms)

define RC_SERVO_LONG 32 // Timer ticks for 2.5 ms pulse duration (39 for 2.5ms)

define RC_SERVO_INVERT 1 // Uncomment to invert servo direction

If you want to have the servo working from 0 --> 180 degrees change RC_SERVO_SHORT and put 9, RC_SERVO_LONG and put 39 If you want invert the servo direction uncomment the line above.

I tested the code very well with Atmega328p (Arduino Uno).

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The link for GRBL vanilla is: http://github.com/grbl/grbl

Grbl is a no-compromise, high performance, low cost alternative to parallel-port-based motion control for CNC milling. It will run on a vanilla Arduino (Duemillanove/Uno) as long as it sports an Atmega 328.

The controller is written in highly optimized C utilizing every clever feature of the AVR-chips to achieve precise timing and asynchronous operation. It is able to maintain up to 30kHz of stable, jitter free control pulses.

It accepts standards-compliant g-code and has been tested with the output of several CAM tools with no problems. Arcs, circles and helical motion are fully supported, as well as, all other primary g-code commands. Macro functions, variables, and most canned cycles are not supported, but we think GUIs can do a much better job at translating them into straight g-code anyhow.

Grbl includes full acceleration management with look ahead. That means the controller will look up to 18 motions into the future and plan its velocities ahead to deliver smooth acceleration and jerk-free cornering.

Licensing: Grbl is free software, released under the GPLv3 license.

For more information and help, check out our Wiki pages! If you find that the information is out-dated, please to help us keep it updated by editing it or notifying our community! Thanks!

Lead Developer [2011 - Current]: Sungeun(Sonny) K. Jeon, Ph.D. (USA) aka @chamnit

Lead Developer [2009 - 2011]: Simen Svale Skogsrud (Norway). aka The Originator/Creator/Pioneer/Father of Grbl.

The link for GRBL vanilla is: http://github.com/grbl/grbl

grbl-corexy-servo's Issues

sketch too big

Hi ,I download the files and just modify the 'spindle_control.c' to '9' and '39', but when i compile it in arduino1.8.5 ,it mentions that the sketch too big, so as the sketch without modify.
my board is nano.

CoreXZ?

Hi there!
I'll keep it brief: I've created a core XZ setup for a school project and I'd love to get it going on grbl!
I've tried altering the master myself (see image below. I tried interchanging Y and Z) , but sadly I couldn't get it to work.

Would anyone like to help?

Laser mode. Possible?

Tell me please. I want to connect a laser (TTL control) to your project. Is it possible?

MKS BAse 1.6(ATMega2560)

could you tell me that it can run on this motherboard BR, because nothing run here! It seems that pin are bad!

Reverse axis

X axis is inverted ,but y is well how to solve this !?

when i move the x axis it also moves the y axis?

When I move the x axis, the y axis also moves. When I use GRBL 1.1 I do not have this problem. Are there any solutions to this?