Mexvape Posted June 26, 2017 Report Share Posted June 26, 2017 (edited) Ok guys, I need your help. I am on another group where I gave a mod a bad review. Well along the discussion the subject that the chip on the mod is not grounded and these guys are telling me it does not need to be grounded, that it "earthens" (whatever that means) through the 510 pin....how can I explain this guy he is full of it and does not know what he is talking about? BTW the chip is not grounded to the 510 chip either. Edited June 26, 2017 by Mexvape Link to comment Share on other sites More sharing options...
gratefulbuddy Posted June 26, 2017 Report Share Posted June 26, 2017 You can use a conductive mods body as a ground for the board and 510 without any additional ground wiring Link to comment Share on other sites More sharing options...
Mexvape Posted June 26, 2017 Author Report Share Posted June 26, 2017 yeah buddy I got it squared out. Link to comment Share on other sites More sharing options...
Mexvape Posted June 26, 2017 Author Report Share Posted June 26, 2017 Is this board wired correctly? Bear in mind that the B- does not go to the actual battery minus but is free standing. Link to comment Share on other sites More sharing options...
gratefulbuddy Posted June 26, 2017 Report Share Posted June 26, 2017 The B- SHOULD be connected to battery negative. The wire you have soldered from B- to the GND is unnecessary as the board has already connected these (and the ground points around the mounting holes) on the pcb. Also the OUT wire to atty looks like it is touching the grounded mounting hole next to it. 1 Link to comment Share on other sites More sharing options...
retird Posted June 26, 2017 Report Share Posted June 26, 2017 1 Link to comment Share on other sites More sharing options...
Asfanews Posted June 27, 2017 Report Share Posted June 27, 2017 Can I just solder the GND to the chopper blade (red line) and be fine? Then B+ to the battery (+ of course) and the OUT to the positive pin of the atom. Am I doing something wrong, because I think it doesn't detect the atom because of this. Link to comment Share on other sites More sharing options...
gratefulbuddy Posted June 27, 2017 Report Share Posted June 27, 2017 (edited) That all sounds/seems appropriate Edited June 27, 2017 by gratefulbuddy 1 Link to comment Share on other sites More sharing options...
Mexvape Posted June 27, 2017 Author Report Share Posted June 27, 2017 Buddy I did not make this board, took it out of a shit mod that cost me 480 pounds for a DIY project. The chip is glued to a plastic sled, does not touch anything and the only two cables are for the B+ to the positive terminal of the battery and the power to the 510 pin. Here are some pics, maybe it is clearer. Link to comment Share on other sites More sharing options...
gratefulbuddy Posted June 27, 2017 Report Share Posted June 27, 2017 Okay, fair enough - no blame here but I still say - The bare wire running from B- to the GND connection is unnecessary and potentially problematic The bare wire connected to OUT is too close the the mounting hole for my comfort A similar setup could work if the board is making grounded contact with a conductive case that acts as a battery negative as well Link to comment Share on other sites More sharing options...
Mexvape Posted June 27, 2017 Author Report Share Posted June 27, 2017 I agree but since the chip is "floating" I guess this is why he did it this way. The OUT wire I cut to get it out of the mod it was longer and had insulation Link to comment Share on other sites More sharing options...
gratefulbuddy Posted June 27, 2017 Report Share Posted June 27, 2017 But that bare wire for ground does not assist (even considering the "floating" setup) - this connection is already made internally on the board - and only opens up the possibility for problems. If the OUT wire were insulated it would be better but I am still not a fan of the soldering job done here For the "floating chip" setup you would need addl connection/s for battery negative and/or a GND connection Link to comment Share on other sites More sharing options...
Mexvape Posted June 27, 2017 Author Report Share Posted June 27, 2017 That is exactly what I thought, but this guy's acolytes kept telling me I was wrong regarding the "floating" set up, IMO it is missing a wire that connects B- to the battery negative pole. Link to comment Share on other sites More sharing options...
gratefulbuddy Posted June 27, 2017 Report Share Posted June 27, 2017 Is the case grounded in a way so the 510 body is in a circuit with the battery negative? Link to comment Share on other sites More sharing options...
Mexvape Posted June 27, 2017 Author Report Share Posted June 27, 2017 Nope, this is how the mod looks like from the top and bottom. As you can see there is no grounding wire to the battery negative pole. . 0 1 Link to comment Share on other sites More sharing options...
Asfanews Posted July 1, 2017 Report Share Posted July 1, 2017 Can I wire a DNA75 with Rigid Copper Wire 20AWG? I mean all the connections Link to comment Share on other sites More sharing options...
Wayneo Posted July 1, 2017 Report Share Posted July 1, 2017 3 minutes ago, Asfanews said: Can I wire a DNA75 with Rigid Copper Wire 20AWG? I mean all the connections I'd follow the datasheet for wire sizes and type 2 Link to comment Share on other sites More sharing options...
Asfanews Posted July 1, 2017 Report Share Posted July 1, 2017 12 minutes ago, Wayneo said: I'd follow the datasheet for wire sizes and type I do the same, but since it's a Rigid Copper Wire I think I can go with the 20 AWG, but I am not sure Link to comment Share on other sites More sharing options...
retird Posted July 1, 2017 Report Share Posted July 1, 2017 I'd follow the datasheet for wire sizes and type also. 2 Link to comment Share on other sites More sharing options...
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