May 26

Trash Can Repair

I have a fancy dual-bin automated electric trash can.
I almost like it (well, if it would also be Alexa-controlled… sounds like a new project idea…)
Anyways, it has 2 bins – for trash and for recycle.
And it has a fancy trash bag holder. Which has an interesting design but way too flimsy and does not stay in place.
So I decided to reinforce it.
Here is my design:

And here is the cutout:
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Mar 07

Is there a chance for fast laser engraving?

Laser engraving is pretty cool.
However, it has obstacles.
The biggest obstacle is engineering stubbornness.
Let’s take a look how getting mentally stuck inside the box holds us back.

Laser engraving with common GRBL controller is known to be sloooow.

Some folks claim that STM32 controllers are faster.
So I have got one of those and did a bench test.

Here is the board.


Spoiler: result was unexpected, but you can probably guess that by my bitterness in the introduction.

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