Tools and Craftsmanship

Do more tools make a better craftsman? Do better tools make a better craftsman? Do better tools make a better product?
The answer is probably not. It’s a bit like saying fancy pans make a good meal or a high-end camera takes nice photos. Sure, they help, but they are not much use with out a little bit of knowledge and skill and the same goes for other tools too. Many years ago I was told only a poor craftsman blames his tools. This seems to hold true in my experience – if you can’t do something with a economy tool and some time, you probably can’t do it with an expensive tool either.

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Loading GRBL on Arduino Mega or Uno

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:

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.
XLoader

GRBL PWM Inverter Circuit

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

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!

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.