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Hackaday Rant

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Yansi:
Sure there are, but please learn where to draw the line between a hobbyist maker and an actually engineered product.

As I've said, way too often to those hobbyists makers put their hand on stuff they should definitely not touch.

I am fine with people doing dangerous stuff at home, but selling your *duino controller for 5 or 6 industrial drying gas fired furnaces to an industrial company, is a completely different matter. All fun ends there! *

//* an actual example, what I have once stumbled upon

SilverSolder:

--- Quote from: Yansi on December 14, 2020, 05:46:44 pm ---Sure there are, but please learn where to draw the line between a hobbyist maker and an actually engineered product.

As I've said, way too often to those hobbyists makers put their hand on stuff they should definitely not touch.

I am fine with people doing dangerous stuff at home, but selling your *duino controller for 5 or 6 industrial drying gas fired furnaces to an industrial company, is a completely different matter. All fun ends there!

--- End quote ---

You only learn from touching things you shouldn't touch.   There are those who believe you should do something that scares you every day, or you are not moving forward!

Yansi:
I am not really scared controlling gas furnaces with a proper industrial grade PLC with properly wired interlocks. But I wouldn't sleep well, using a duino board for that. Miracle none of the furnaces has blown up!

phil from seattle:

--- Quote from: SilverSolder on December 14, 2020, 05:51:43 pm ---
--- Quote from: Yansi on December 14, 2020, 05:46:44 pm ---Sure there are, but please learn where to draw the line between a hobbyist maker and an actually engineered product.

As I've said, way too often to those hobbyists makers put their hand on stuff they should definitely not touch.

I am fine with people doing dangerous stuff at home, but selling your *duino controller for 5 or 6 industrial drying gas fired furnaces to an industrial company, is a completely different matter. All fun ends there!

--- End quote ---

You only learn from touching things you shouldn't touch.   There are those who believe you should do something that scares you every day, or you are not moving forward!

--- End quote ---
That's not the issue Yansi was pointing out. The issue is clueless types pushing ideas that will get someone hurt.

My favorite example of this is a clueless makerdroid pushing his Plasma Cutter Torch Height Controller. Yup, Arduino based. But that's not the real issue.  Plasma cutters output a torch voltage that is proportional to the height of the metal being cut. Nominally correct voltage is 100V which is sometimes divided down by the plasma controller - sometimes not.  This guy takes the plasma voltage directly into the ADC of the Arduino by jamming the wire into the socket header on the Arduino.  He also uses a 100 uF electrolytic cap between the torch voltage signal and ground. He does this by jamming the cap's lead into the same socket as the torch voltage lead.  So, no isolation, the torch voltage wire is not safely secured and the electrolytic cap is probably rated for 25V.  I tried to explain the error of his ways but he wasn't having any of it. I also explained that he could get a much more effective and safe low pass filter with a resistor and a safer cap in the 100 nF range. No taking that one either. And he has several people building his design. One guy got it working but then it died.  He's lucky he didn't die but I'm sure he will keep at it.

SilverSolder:

People routinely do very dumb things.  Including the undersigned!  :D

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