2 Heads, one white, one with red, green, blue and amber LEDs, heads and color LEDs individually controllable.
The modified MCPCB with XP-E2 color LEDs, and my driver which is used in both heads. In the white head populated with FET + 7135, in the color head populated with 4 x 7135 for each LED. MCU is Attiny 841. Full ramping UI of course. The reflector bottom had to be grinded a bit to make room for the outer LED wire pad. Reversed MCPCB polarity (batt+ at the outer trace to keep grinding at a minimum).
Cut a solid 6mm brass rod and soldered a spring on one end in order to bring batt+ to the rear head. Used tape to isolate the rod and drilled a hole in the tail PCB.
The threads at the rear end of the battery tube are too short to reach the driver board so I made cut outs (for the PCB screws) to a copper ring and put this ring above the PCB.
Attiny 841 with 6 PWM channels which can almost freely be assigned to 8 output pins.
Yes, I was also thinking of UV but not with this light since it will also be used by my children. If I use UV in an other multi color light I probably will add some security code into the firmware to avoid unintentional activation.
I used a belt sander with a 40-grit belt, an orbital sander with a 120-grit disc, and a few minutes of hand sanding with 180-grit and 400-grit laid on a flat surface.
I also applied some thin strips of adhesive vinyl between the fins to tell them apart.
I wanted to do a spring bypas. First investigated the screws. The head srews are ok, but the tail pcb screws, one of them has a bad notch(? ), (there were the screwdriver goes in) so i can’t open this screw. I have no solution, mabey one of you got an option?
Before you do that I would recommend ordering some replacements of higher quality and less resistance so that way at least you have a working light until those come in. Also, you will have a few hundred more lumens with the replacements since you plan on bypassing anyway.
Received my first Q8 last week. Overall Build was great. Tail end-Screws for the PCB board were not stripped. the holes were already chamfered. Head end-screws for the driver looked fine. the holes in the driver looked bigger than threaded holes so i didn’t have to oversize them. it was oily on the other side. just gave it a wipe. the annodization on the threads on the tube and head were thin and some spots worn out. it was a little gritty as well. that is the only negative about the entire light. Cleaned and re lubed. nice and smooth now. Love the ramping UI. The only mod i have done is the tail spring bypass. Would love to have TK’s UI with Lightning/candle mode. not interested in buying parts for flashing as i am not a avid modder.
long shot but anyone happen to live in Calgary, Alberta that flashes lights?