HobbyCNC PRO Rev 2 Introduced

I’ve made a few changes to the popular HobbyCNC PRO board. Most of the changes are cosmetic or functional, but one in particular is a big departure from the Rev1 boards. What hasn’t changed: Roughly the same form factor (it is a little smaller) Same...

PRO and EZ board mounting templates

Never really thought about it until I was recently asked the diameter of the mounting holes on the EZ board. I couldn’t remember. (FYI, 0.125″ [3.2mm] is the spec’d diameter). That got me thinking about the mounting pattern. Anyhow, I did them and if...

My brand new stepper motor won’t turn by hand!

Customer received some new stepper motors and found it very difficult to spin the shaft by hand. Naturally, the thought was the motors were ‘bad’. Normally, you can easily turn a stepper motor shaft by hand, and you can feel each of the 200...

Blown Chip #2

This is a very unusual chip to blow like this. Just like with the blown driver chip, damage like this indicates a LOT of power. But this chip is nowhere near any high voltages. The Diagnosis Assembly error? Nope. This was an assembled PRO board, so it was fully tested...

Experience is a tough teacher

When my children were growing up I used to tell them that “Experience is a difficult teacher; she gives the test first and the lesson afterwards”. I have found frequently throughout my career that I tend to learn the most when I fail. Mistakes are annoying...

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