LED ring laser position indicator.

LED ring laser position indicator.

The design is on Thingiverse but unless you have the same magnet and flashlight it might not be too terribly useful. I think the concept is the gem here:

My controller board is dead so I spent the weekend doing what I could without it while I wait for a replacement to arrive.

pretty cool!

good idea!

I was doing similar last weekend. Magnet is genious!

Very neat !
The dimmer leds on one side might be because your laser isn’t exactly aligned with the centre of the last mirror - good enough for the narrow laser but not for the wider ring of leds

Clever.
Just a note; LED and Laser diodes do not necessarily point parallel to their body. Found this out when trying to use either as alignment tools.
I have seen a similar design where a laser diode swings into the optical path (where it exits the laser compartment) when the cover is opened.

@artag that is very possible.

Excellent! Intelligent design! Can you let us know where you got the magnet and the LED’s? And what you wired it to?

@Umar_Haque ​ The LEDs came from a “Guidesman 210-1004 14 LED” flashlight. (I am pretty sure my mother in-law got if free after rebate at a hardware store.) The magnet was salvaged from an old microwave oven. The power supply was a 5V DC power supply from a flip style cell phone. I wired a 180 Ohm resistor in series with the LEDs (the LEDs are all in parallel with each other). This was completely made with things I had in my parts bins. The intent was to show the concept not the best way to make it.

@Scorch: I love how you reuse and recycle parts! Just used an old Little Tikes bounce house fan to help evacuate the K40 after printing a fairly interesting attachment. Just needed to cut the plastic off of the bottom.