BigToyās housings are done on a mill. There are other difficulties in lengthwise slots, however. From a cost/benefit perspective, he has a good ratio.
Correct, My housing are done in my cnc machining center. Like what pptk said, doing them lengthwise is not as easy to machine. Having them the other way would help but there is just not enough mass and surface are for heat dissipation. These are around 60sqin, where my big light is 300sqin. 34 watts is a lot of heat to dissipate on something that fits in the palm of your hand.
Survey Says! You didnāt fry it at all Thatās good news
When you soldered the wires to the terminals, the BAT+ terminal must have moved around a bit. There was a TINY (Iāll post 300X microscope photos later) thread of solder that managed to bridge to the programming pad next to the VIN Terminal. This was then injecting voltage into places where voltage shouldnāt go and screwing things all the heck up.
I removed the bridge, and re-soldered the connection terminals onto the board using (very) high temperature solder (300C Melting point). This should make it easier for you to solder the wires on without moving the terminals around. Module was shipped back to you late last week and you should have it today or tomorrow.
Hell yeah! I have a magnifying glass and I couldnāt see the bridge. And yes, it did move around a lot. Iāll be sure to keep my soldering iron below 300C and maybe have something hold the tab in place too. This is great news! Thanks again!
It is nice, but really, I should have tossed the module in the X-Ray. Thatās the ācoolā toy.
As for figuring it out, even I didnāt see the short at first. It was just a hair of solder - completely 100% invisible to the naked eye. I figured it out when I stuck a meter on a resistor that should have been sitting at about 3 volts, and instead it was at the same voltage as battery in. It had to be a short - just took me a minute to find itā¦
As soon as I cut the short, all was happy again. I did replace the thermistor (temperature measurement chip) since JonC told me that he had caused a spark when poking around, and the thermistor definitely had a burn mark on it - but I donāt actually think it was damaged. Replaced for good measure.
Sorry, Iāve been swamped lately with the kids going back to school and my daughter having signed up for volleyball, which takes up my evenings. Iām also training for a charity bike ride at the end of this month. Iāll get yours started this weekend and should have it in the mail next week.