[Video] Soldering a Limit Switch Isolator
May 23, 2020
https://www.youtube.com/watch?v=_18urPHrtA4
Loading GRBL on Arduino Mega or Uno
December 21, 2019
There are a couple methods to load or install GRBL on an Arduino Mega or Uno. The most common method (which is described in the GRBL Wiki) is to use the Arduino IDE by copying the GRBL files, loading a sketch, then finally uploading. A far easier method is to use XLoader, pick the file, and click upload. This method is also in the GRBL Wiki but it is buried on the page and seems to be discouraged, plus the link to XLoader is broken.
Downloads:
- XLoader
- GRBL 1.1f (standard version for Arduino Uno)
- GRBL 1.1f (standard version for Arduino Mega2560
- GRBL 6 axis (6 axis version for Arduino Mega2560)
- Arduino Mega2560 bootloader (stk500boot_v2_mega2560)
Here is the XLoader interface. Select the .hex file by clicking on the button with the dots, pick either the Mega or Uno device, select the COM port, and click Upload.
GRBL PWM Inverter Circuit
May 25, 2019
Here is another quick circuit – this time a GRBL PWM inverter circuit showing how to invert a PWM circuit with only three components. This works great to invert the PWM signal out of GRBL to driver a laser.
PWM Inverter Circuit
As a use example, PWM_In would come from the Spindle Speed output of a GRBLDuino CNC controller and be inverted on PWM`_Out to drive a laser with inverted logic requirements.
GRBLDuino User Group Forum!
January 19, 2019
A new forum as been set up at Forum.EccentricWorkshop.com as a home for GRBLDuino users. This is a place to get help, ask questions, suggest features and improvements, share your machine builds, and share projects.
The GRBLDuino Forum, specifically, will now be the official support channel to allow all users to benefit from the conversations.