Evolve DNA 40 clone temp control - first look :)

[Deleted]

How long do they take to send robby, I emailed Julia an hour or so ago asking when the likely dispatch will be. Just waiting on a reply.

[robby]

Depends on demand car147, I think they may have been snowed under with people buying just one mod which may add a day or two.

[Greigster]

Jan 19, 2015 11:52:04 GMT car147 said:

How long do they take to send robby, I emailed Julia an hour or so ago asking when the likely dispatch will be. Just waiting on a reply.

Looks like macmagoo has had a promising reply from Julia regarding despatch, lets hope ours are on the same lorry.

[Deleted]

Jan 16, 2015 23:57:25 GMT VapingBad said:

Jan 16, 2015 23:49:11 GMT robby said:

On the one I have, once you get above temp control/protection point, it doesn`t make any difference to the trace as long as the watt setting is above what the temp control would give you, which makes the wattage setting irrelevant IMO. You are under total temperature control.

True, but you don't always reach the temperature because your wattage is set low, the air flow and wicking are behaving etc.  Todd said he would have liked just a temperature setting, which the same as setting it to 40 W.

When I had no clue how theses devices worked I really couldn't understand why it still had watts and not just a temperature setting. Now half a clue I kinda half understand.....! 

Just skipped past you two chatting with graphs...! but as a user it's nice to see the watts and what the board is doing but am leaning towards leaving it at 20watts and adjusting the temp more with the atty's I have now. Suppose what im saying is I would like temp control on the main menu and watts as the small reading and on the secondary menu.

[robby]

When you are on temperature @letsavit, the watts are irrelevant. But they have to be set at higher that you would expect or it will affect the vape

[VapingBad]

A lot of builds don't get to the temp limit although they benefit from the pre heat, even at 400 F and 40 W my Origenny stays around 300 when not vaped and robby 2nd plot slowly raises from approx 140 F to 335 F (calc from R & W). But you still get a smoother vape due to Evolv doing real time resistance monitoring and wattage regulation for over 3 years. So when you cool your coil by increasing the airflow it adjusts the watts within micro seconds maintain a smother vape as wicking and airflow change.

[Deleted]

Yea found that with my orchids, temp contol never cut in, massive boost at the start. Now my kayfuns need the protection to run where I want them, that's where this device shines for me at the moment.

[VapingBad]

Jan 19, 2015 15:40:38 GMT @letsavit said:

Yea found that with my orchids, temp contol never cut in, massive boost at the start. Now my kayfuns need the protection to run where I want them, that's where this device shines for me at the moment.

Make the coils too small, they will over heat and it cut's in like Casanova at a Ball, but with big sensible coils not that much.

[Deleted]

Jan 19, 2015 15:45:44 GMT VapingBad said:

Jan 19, 2015 15:40:38 GMT @letsavit said:

Yea found that with my orchids, temp contol never cut in, massive boost at the start. Now my kayfuns need the protection to run where I want them, that's where this device shines for me at the moment.

Make the coils too small, they will over heat and it cut's in like Casanova at a Ball, but with big sensible coils not that much.

Only just got some more wire sizes, any ohm range to target to help? I think I remember the spec sheet saying an optimum of .4?   

[VapingBad]

Jan 19, 2015 15:52:19 GMT @letsavit said:

Jan 19, 2015 15:45:44 GMT VapingBad said:

Make the coils too small, they will over heat and it cut's in like Casanova at a Ball, but with big sensible coils not that much.

Only just got some more wire sizes, any ohm range to target to help? I think I remember the spec sheet saying an optimum of .4?   

Don't know, I have stuck at the low end of the range as I like dual coils and gennies. 

Looking at the figures these have to be so accurate in measuring resistance it would put your top end Fluke multimeter to shame.

Change in resistance per degree F
Cold R  ohm/degree F
0.10     0.000356
0.50     0.001781
1.00     0.003561

[Deleted]

Jan 19, 2015 16:07:21 GMT VapingBad said:

Jan 19, 2015 15:52:19 GMT @letsavit said:

Only just got some more wire sizes, any ohm range to target to help? I think I remember the spec sheet saying an optimum of .4?   

Don't know, I have stuck at the low end of the range as I like dual coils and gennies. 

Looking at the figures these have to be so accurate in measuring resistance it would put your top end Fluke multimeter to shame.

Change in resistance per degree F
Cold R  ohm/degree F
0.10     0.000356
0.50     0.001781
1.00     0.003561

Thanks 

only just got some smaller wire so can target higher resistance, I'll do one and suck it and see I suppose... kinda thinking to give the board a larger window, ie less room for error.

[archiecat]

Started the order process by asking for a price, thanks Robby and others who posted here.

One question, how does the temp sensing work, ie, where/how does the chip sense the temp?

[Deleted]

Jan 19, 2015 16:29:38 GMT archiecat said:

Started the order process by asking for a price, thanks Robby and others who posted here.

One question, how does the temp sensing work, ie, where/how does the chip sense the temp?

Through the coil, it's using the same bit of wire to heat and do the sensing. 

Everyones got thier own set up but the only given for now (correct me of wrong anyone) is; A good sized spaced coil with solid connections. Ie the atty screws and at the 510. 

[archiecat]

Jan 19, 2015 17:04:14 GMT @letsavit said:

Jan 19, 2015 16:29:38 GMT archiecat said:

Started the order process by asking for a price, thanks Robby and others who posted here.

One question, how does the temp sensing work, ie, where/how does the chip sense the temp?

Through the coil, it's using the same but if wire to heat and do the sensing. 

Everyones got thier own set up but the only given for now (correct me of wrong anyone) is; A good sized spaced coil with solid connections. Ie the atty screws and at the 510. 

Ok, Thanks, think I've got it, so no special atty's etc required, I'll order some NI200 nickel wire.

[Deleted]

Jan 19, 2015 16:29:38 GMT archiecat said:

Started the order process by asking for a price, thanks Robby and others who posted here.

One question, how does the temp sensing work, ie, where/how does the chip sense the temp?

As far as I have fathomed out, and correct me if I am wrong, the chip sense the change in resistance of the Ni200 wire, ie as the temp goes up the resistance changes ( increases I think)