Oshpark Projects

Which ones did you order? You might be able to add a couple pieces of wire near the edge to act as a ground ring.

All 3. The 15, 17, and 20. I created support tickets for them. If that doesn't work your wire idea will probably make them functional. Thanks for the suggestion.

I’ve sent TiVo a pm with an invitation as he is offline now and this thread may be well down the pages before he comes back. Any other Oshpark flashlight projects that people can think of should get mentioned as well.

The BAT54WS is in SOD-323 package. The BAT54/A/C/S are in SOT23 package.

I would definitely hold off with the FET based design. It's not working well with more than one FET (accommodates up to 4), and he's still working on a solution. The fix will probably be a design change.

Thanks Tom, I want this to be as inclusive as possible but it makes sense to be sure that these are working systems. Is the 7135 board a go? Matt’s larger designs are based on Comfychairs work on the nanjg east-92 which is well enough established by now but the 15 mm board uses a much smaller FET that has not been tested to any great degree if at all. I have some of the IRLM2502’s coming that I hope to try on a regular nanjg board within a week or so but they were an option suggested by Werner for a very similar project(I would call it a parent project in fact) that he was(and may still be) working on. Patience not being in abundant supply around here we’ve been jamming to get these done and ready to try but testing has been mostly limited to the 70N02 FET. I would suggest that initially at least people consider these FET boards as beta prototypes until they have been assembled and played with in greater numbers.

I "think" the Z8 7135 board is a go, but no experience myself. I'm all setup with the tools and able to program both Tiny13A and Z8 based drivers, just the Tiny13A's have a big advantage right now in developed/tested firmware. Tivo did an excellent job, but doesn't have battery management or e-switch support yet. Love the ability to re-program the boards from the spring side - I've used it and it's really nice, not having to dis-assemble a pill.

Thanks for doing this! I agree - it's moving way too fast. Waiting on build/test threads of the newly posted ones. Not sure what the thru-holes are for, like in the 17mm FET - was hoping it was for programming .

If you were designing a board from scratch couldn't we just reroute the traces needed to reprogram the attiny13a to through hole points as well? I don't know if there's enough room but it seems like you could do the same thing.

I got this one from Scaru. Triple XML PCB. Work awesome with the FET drivers. I’ll have to get back to that project.

I traded him for a few of those boards. I thought they came from another fabricator as they were thinner than 1.6 mm. Thanks for the link. If Scaru gives the thumbs up, there’s a category waiting for it.

18 of the original design with no ground ring already being made.

I didn’t even notice.

I think you can make a workaround.

Maybe I’ll work the boards and stencils around to the trash can, get the new ones. :wink:

Just ordered 18 of the new layout, my 6 yr old will take great delight in learning the game of tiddlywinks with the first 18.

The stencils should be fine, right? Face or FET side will be the primary as the few components on the spring side are easy enough to do freehand and can’t be re-flow soldered anyway with the other side already populated.

Another work around at least for the 17’s and 20’s would be to add one of RMM’s contact boards and using 24 or 26 solid in the vias.

Does it wick the heat off pretty well since it has a PCB rather than a copper plug underneath?

Can you get a triple XP-E one made up?

It has a bunch of vias that wick the heat through. Better than a board with dielectric layer but not as good as a noctogon. I’m know he had thinner boards made but not where. Xpe’s should fit xpg noctogon footprint. Same base with a different die on it.

The hole in the center is too small for good sized wires but that can be addressed with a drill.

Bookmarked. Thanks for designing them and putting on one page. :slight_smile:

Would extra solder paste on those vias help, as in a solid solder plug from the top side where the emitters sit to the backside where the copper plating is located?

My guess is they aren’t pushing 3+ amps thru to each emitter? Do they have a XPE version or are you recommending the XP-G noctigon over something like this?

I think it’s rather intriguing…but fear it might not adequately cool the emitter at higher current levels some are wanting to push em too.

Similar to this

It was designed with 3A per in mind and in fact he and Pilotptk crammed 7 XML’s onto a similar 20 mm board. Enough solder to fill the vias without floating the LEDs would be ideal.