I was building the circuit board of the engraver and I believe I found
an error in the assembly instructions. Page 14 of the online
instructions for the rev B board (which I have):http://cdn2.evilmadscience.com/KitInstrux/eggbot/engr_build_html/index14.html
to insert the LED into the board with the long lead into the square
hole. On my board, the square hole is closest to the cap. This matches
what is shown in the picture on the page.
However, on my LED itself, the long lead on my LED is on the FLAT side of the package, not the rounded side.
closely at the LED, I think it might have been put together reversed.
The anvil (cathode, short lead) is on the rounded side of the LED and the post (anode, long
lead) is on the flat side.
If I assemble my rev B board using the rev B instructions (put long LED into square hole) the finished board will look like a rev A board (curved side of LED to outside of board)
Can someone verify this for me please. I can try and send a photo if necessary.