GD-SDS .Short notice / update..

[SnotBoogie]

I think SnotBoogie means peltier cooler..

You are bang on the money my friend, thanks!

 

[stardustsailor]

Nah.
Peltier coolers are good for small surfaces and up to ~100-120°C ...

Either something has to conduct/convect and remove heat from stove ....( A Pyrex/Inox container filled with water ? A Fan ? )
Or ...
Something has to lift /move slightly the pcb ,above the hot surface of stove .
So to cool down with ~3°C /sec rate ....

Thing is that the pcb can be moved -agitated/'disturbed' by any means- only
when it's temperature has fallen below 217°C .
When solder has started to solidify ....
...
If moved before it reaches below that point ,then that agitation , might shake the crystallising solder joint!

And that's not good ....

...P4 Cool down zone

In the cool down zone, a cooling rate of 3 °C/s should be maintained to allow the
components, the printed circuit board, and the solder to cool evenly. This minimizes the
stress on the module housing and the solder joints.

Special attention should be paid here to boards with very different coefficients of
expansion between component and printed circuit board substrate,
such as ceramic based LEDs and aluminum MCPCB.
Exceeding the permissible cooling gradient leads here to a damage to the components
and the substrate.
Likewise, during solidification of the solder, tensions without relaxation can no longer
occur.
Cooling that is too slow (≤ 0.5 °C/s), especially at temperatures around the
melting point, produces coarser grain structures in the solder, which may affect the
reliability of the solder joint and increase the likelihood of a crystalline appearance of the
joint (matte appearance).
-------------------------------------------------------------
Possible measures for optimizing the reflow profile
As described wrongly selected parameters and attitudes can cause a substantial
damage of the component to be soldered.
The following references should assist and point out possibilities to optimize the reflow
profile respectively to realize a LED friendly solder process as possible with few modifications.

• Limit the peak temperature to approx. 240 °C
• Linear heating
• Avoidance of jumps in gradient (transition
from soak to reflow zones)
• Uniform curve progression around
peak temperature in the time intervall
over liquidus temperature (Fig. 10)
• Use of the last heating zone for gentle
cooling (approx. 170 °C)
• For active cooling zone: Increasing the
operating point of the chiller (generally
only possibly by equipment manufacturer)
• Cooling zones: Reduce the fan speed
to minimal value
• Reduction of conveyer speed (may
require simultaneous temperature adjustment in all heating zones)



Source: Further Details on Lead-Free Reflow Soldering of LEDs
Application Note

 

[OldGrowth420]

Great thread Stardustsailor. Your technical expertise is astonishing as always. Just wanted to stop in and spread some love. Here's some new tunes for you since i saw your into music.

[video=youtube;4PMxDi6N9KU]http://www.youtube.com/watch?v=4PMxDi6N9KU[/video]

 

[OldGrowth420]

[video=youtube;4qCgH8BrYo0]http://www.youtube.com/watch?v=4qCgH8BrYo0[/video]

 

[OldGrowth420]

[video=youtube;gAUMgureA6o]http://www.youtube.com/watch?v=gAUMgureA6o[/video]

 

[stardustsailor]

Well ...
Another sleepless night gone ...
Programming ....

And fine tuning ....

......
But it was well worth it ....

Grey line is a "standard " lead-free solder reflow profile ....
Not so good example though ...


Purple line is the microcontroller's programmed solder profile ....

And ...
Well ...
Blue line is my third -recorded and analysed - manual hot plate "control " ...
..........................
Any ideas about cooling ?

Am thinking something like a grill just a bit above the stove's hot plate ....
So the pcbs will no sit directly onto the hot-plate ....

Air current of some sort ,over the hot plate system, seems to do a good job @ cooling ....


And here's some serial data send by the Arduino to laptop..
Realtime ..
Actually ,second by second ...
......



type def
{
T= time (sec ) // sec
setpoint=profile PID setpoint // °C
IN= TC input // °C
Out= PWM output duty cycle - of 2000msec window- control of SSR // 2000=100% duty cycle ,1000=50% duty cycle ,etc...
ramp=slope // °C/sec
reflow=timepoint when actual reflow started // sec
Dwell :Total time above liquidus temperature ( 80-100 sec suggested ) // sec
}

T:1 SETPOINT: 48.00 IN:41.50 OUT:650.04 RAMP:0.00 REFLOW:0 DWELL:0
T:2 SETPOINT: 48.00 IN:41.50 OUT:650.20 RAMP:0.00 REFLOW:0 DWELL:0
T:3 SETPOINT: 51.00 IN:41.75 OUT:925.40 RAMP:0.00 REFLOW:0 DWELL:0
T:4 SETPOINT: 54.00 IN:41.75 OUT:925.63 RAMP:0.00 REFLOW:0 DWELL:0
T:5 SETPOINT: 54.00 IN:41.75 OUT:1225.94 RAMP:0.00 REFLOW:0 DWELL:0
T:6 SETPOINT: 57.00 IN:41.75 OUT:1526.28 RAMP:0.00 REFLOW:0 DWELL:0
T:7 SETPOINT: 60.00 IN:41.50 OUT:1526.66 RAMP:-0.25 REFLOW:0 DWELL:0
T:8 SETPOINT: 60.00 IN:41.75 OUT:1827.12 RAMP:0.00 REFLOW:0 DWELL:0
T:9 SETPOINT: 63.00 IN:41.75 OUT:2000.00 RAMP:0.00 REFLOW:0 DWELL:0
T:10 SETPOINT: 66.00 IN:42.00 OUT:2000.00 RAMP:0.00 REFLOW:0 DWELL:0
T:11 SETPOINT: 66.00 IN:42.25 OUT:2000.00 RAMP:0.00 REFLOW:0 DWELL:0
T:12 SETPOINT: 69.00 IN:42.50 OUT:2000.00 RAMP:0.00 REFLOW:0 DWELL:0
T:13 SETPOINT: 72.00 IN:43.25 OUT:2000.00 RAMP:0.25 REFLOW:0 DWELL:0
T:14 SETPOINT: 72.00 IN:43.75 OUT:2000.00 RAMP:0.00 REFLOW:0 DWELL:0
T:15 SETPOINT: 75.00 IN:44.75 OUT:2000.00 RAMP:0.25 REFLOW:0 DWELL:0
T:16 SETPOINT: 78.00 IN:45.75 OUT:2000.00 RAMP:0.25 REFLOW:0 DWELL:0
T:17 SETPOINT: 78.00 IN:47.00 OUT:2000.00 RAMP:0.25 REFLOW:0 DWELL:0
T:18 SETPOINT: 81.00 IN:48.50 OUT:2000.00 RAMP:0.50 REFLOW:0 DWELL:0
T:19 SETPOINT: 84.00 IN:50.00 OUT:2000.00 RAMP:0.25 REFLOW:0 DWELL:0
T:20 SETPOINT: 84.00 IN:51.75 OUT:2000.00 RAMP:0.50 REFLOW:0 DWELL:0
T:21 SETPOINT: 87.00 IN:53.75 OUT:2000.00 RAMP:0.50 REFLOW:0 DWELL:0
T:22 SETPOINT: 90.00 IN:55.50 OUT:2000.00 RAMP:0.50 REFLOW:0 DWELL:0
T:23 SETPOINT: 90.00 IN:58.00 OUT:2000.00 RAMP:0.75 REFLOW:0 DWELL:0
T:24 SETPOINT: 93.00 IN:60.25 OUT:2000.00 RAMP:0.50 REFLOW:0 DWELL:0
T:25 SETPOINT: 96.00 IN:62.75 OUT:2000.00 RAMP:0.75 REFLOW:0 DWELL:0
T:26 SETPOINT: 96.00 IN:65.25 OUT:2000.00 RAMP:0.75 REFLOW:0 DWELL:0
T:27 SETPOINT: 99.00 IN:67.75 OUT:2000.00 RAMP:0.50 REFLOW:0 DWELL:0
T:28 SETPOINT: 102.00 IN:70.50 OUT:2000.00 RAMP:0.50 REFLOW:0 DWELL:0
T:29 SETPOINT: 102.00 IN:73.50 OUT:2000.00 RAMP:1.00 REFLOW:0 DWELL:0
T:30 SETPOINT: 105.00 IN:76.25 OUT:2000.00 RAMP:0.75 REFLOW:0 DWELL:0
T:31 SETPOINT: 108.00 IN:79.25 OUT:2000.00 RAMP:1.00 REFLOW:0 DWELL:0
T:32 SETPOINT: 108.00 IN:82.00 OUT:2000.00 RAMP:0.50 REFLOW:0 DWELL:0
T:33 SETPOINT: 111.00 IN:85.25 OUT:2000.00 RAMP:0.75 REFLOW:0 DWELL:0
T:34 SETPOINT: 114.00 IN:88.50 OUT:2000.00 RAMP:0.75 REFLOW:0 DWELL:0
T:35 SETPOINT: 114.00 IN:91.50 OUT:2000.00 RAMP:0.75 REFLOW:0 DWELL:0
T:36 SETPOINT: 117.00 IN:95.00 OUT:2000.00 RAMP:1.00 REFLOW:0 DWELL:0
T:37 SETPOINT: 120.00 IN:98.00 OUT:1937.72 RAMP:0.75 REFLOW:0 DWELL:0
T:38 SETPOINT: 120.00 IN:101.50 OUT:1913.24 RAMP:1.00 REFLOW:0 DWELL:0
T:39 SETPOINT: 123.00 IN:104.75 OUT:1843.71 RAMP:0.75 REFLOW:0 DWELL:0
T:40 SETPOINT: 126.00 IN:108.25 OUT:1539.14 RAMP:1.00 REFLOW:0 DWELL:0
T:41 SETPOINT: 126.00 IN:111.75 OUT:1469.55 RAMP:1.00 REFLOW:0 DWELL:0
T:42 SETPOINT: 129.00 IN:115.25 OUT:1419.91 RAMP:1.00 REFLOW:0 DWELL:0
T:43 SETPOINT: 132.00 IN:118.50 OUT:1070.23 RAMP:0.75 REFLOW:0 DWELL:0
T:44 SETPOINT: 132.00 IN:122.00 OUT:1065.53 RAMP:1.00 REFLOW:0 DWELL:0
T:45 SETPOINT: 135.00 IN:125.25 OUT:995.79 RAMP:0.75 REFLOW:0 DWELL:0
T:46 SETPOINT: 138.00 IN:128.50 OUT:691.00 RAMP:0.75 REFLOW:0 DWELL:0
T:47 SETPOINT: 138.00 IN:132.25 OUT:596.20 RAMP:0.75 REFLOW:0 DWELL:0
T:48 SETPOINT: 141.00 IN:135.75 OUT:566.35 RAMP:0.75 REFLOW:0 DWELL:0
T:49 SETPOINT: 144.00 IN:139.50 OUT:216.45 RAMP:1.00 REFLOW:0 DWELL:0
T:50 SETPOINT: 144.00 IN:143.00 OUT:121.52 RAMP:0.75 REFLOW:0 DWELL:0
T:51 SETPOINT: 147.00 IN:146.25 OUT:96.56 RAMP:0.75 REFLOW:0 DWELL:0
T:52 SETPOINT: 152.50 IN:149.50 OUT:0.00 RAMP:0.75 REFLOW:0 DWELL:0
T:53 SETPOINT: 152.50 IN:152.50 OUT:0.00 RAMP:0.75 REFLOW:0 DWELL:0
T:54 SETPOINT: 152.50 IN:155.25 OUT:0.00 RAMP:0.50 REFLOW:0 DWELL:0
T:55 SETPOINT: 152.50 IN:158.25 OUT:0.00 RAMP:0.75 REFLOW:0 DWELL:0
T:56 SETPOINT: 152.50 IN:160.75 OUT:0.00 RAMP:0.75 REFLOW:0 DWELL:0
T:57 SETPOINT: 155.00 IN:163.00 OUT:0.00 RAMP:0.50 REFLOW:0 DWELL:0
T:58 SETPOINT: 155.00 IN:165.50 OUT:0.00 RAMP:0.50 REFLOW:0 DWELL:0
T:59 SETPOINT: 155.00 IN:167.50 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:60 SETPOINT: 155.00 IN:169.75 OUT:0.00 RAMP:0.75 REFLOW:0 DWELL:0
T:61 SETPOINT: 155.00 IN:171.50 OUT:0.00 RAMP:0.50 REFLOW:0 DWELL:0
T:62 SETPOINT: 157.50 IN:173.00 OUT:0.00 RAMP:0.50 REFLOW:0 DWELL:0
T:63 SETPOINT: 157.50 IN:174.50 OUT:0.00 RAMP:0.50 REFLOW:0 DWELL:0
T:64 SETPOINT: 157.50 IN:176.00 OUT:0.00 RAMP:0.50 REFLOW:0 DWELL:0
T:65 SETPOINT: 157.50 IN:177.25 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:66 SETPOINT: 157.50 IN:178.50 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:67 SETPOINT: 160.00 IN:179.75 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:68 SETPOINT: 160.00 IN:181.00 OUT:0.00 RAMP:0.50 REFLOW:0 DWELL:0
T:69 SETPOINT: 160.00 IN:182.00 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:70 SETPOINT: 160.00 IN:182.75 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:71 SETPOINT: 160.00 IN:183.50 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:72 SETPOINT: 162.50 IN:184.25 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:73 SETPOINT: 162.50 IN:184.75 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:74 SETPOINT: 162.50 IN:185.50 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:75 SETPOINT: 162.50 IN:186.00 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:76 SETPOINT: 162.50 IN:186.50 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:77 SETPOINT: 165.00 IN:187.00 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:78 SETPOINT: 165.00 IN:187.50 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:79 SETPOINT: 165.00 IN:188.00 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:80 SETPOINT: 165.00 IN:188.25 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:81 SETPOINT: 165.00 IN:189.00 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:82 SETPOINT: 167.50 IN:189.50 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:83 SETPOINT: 167.50 IN:189.75 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:84 SETPOINT: 167.50 IN:190.00 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:85 SETPOINT: 167.50 IN:190.25 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:86 SETPOINT: 167.50 IN:190.50 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:87 SETPOINT: 170.00 IN:190.75 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:88 SETPOINT: 170.00 IN:190.75 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:89 SETPOINT: 170.00 IN:190.75 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:90 SETPOINT: 170.00 IN:190.50 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:91 SETPOINT: 170.00 IN:190.25 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
¾T:92 SETPOINT: 172.50 IN:190.25 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:93 SETPOINT: 172.50 IN:190.25 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:94 SETPOINT: 172.50 IN:190.50 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:95 SETPOINT: 172.50 IN:190.50 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:96 SETPOINT: 172.50 IN:190.75 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:97 SETPOINT: 175.00 IN:190.75 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:98 SETPOINT: 175.00 IN:191.00 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:99 SETPOINT: 175.00 IN:191.25 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:100 SETPOINT: 175.00 IN:191.25 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:101 SETPOINT: 175.00 IN:191.50 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:102 SETPOINT: 177.50 IN:191.50 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:103 SETPOINT: 177.50 IN:191.75 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:104 SETPOINT: 177.50 IN:192.00 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:105 SETPOINT: 177.50 IN:192.00 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:106 SETPOINT: 177.50 IN:192.00 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:107 SETPOINT: 180.00 IN:191.75 OUT:0.00 RAMP:-0.25 REFLOW:0 DWELL:0
T:108 SETPOINT: 180.00 IN:191.75 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:109 SETPOINT: 180.00 IN:191.75 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:110 SETPOINT: 180.00 IN:191.75 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:111 SETPOINT: 180.00 IN:191.50 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:112 SETPOINT: 182.50 IN:191.25 OUT:0.00 RAMP:-0.25 REFLOW:0 DWELL:0
T:113 SETPOINT: 182.50 IN:191.25 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:114 SETPOINT: 182.50 IN:191.00 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:115 SETPOINT: 182.50 IN:191.25 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:116 SETPOINT: 182.50 IN:191.25 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:117 SETPOINT: 185.00 IN:191.50 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:118 SETPOINT: 185.00 IN:192.25 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:119 SETPOINT: 185.00 IN:192.50 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:120 SETPOINT: 185.00 IN:193.25 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:121 SETPOINT: 185.00 IN:193.75 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:122 SETPOINT: 187.50 IN:194.00 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:123 SETPOINT: 187.50 IN:194.75 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:124 SETPOINT: 187.50 IN:195.25 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:125 SETPOINT: 187.50 IN:195.75 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:126 SETPOINT: 187.50 IN:196.25 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:127 SETPOINT: 190.00 IN:196.50 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:128 SETPOINT: 190.00 IN:197.00 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:129 SETPOINT: 190.00 IN:197.50 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:130 SETPOINT: 190.00 IN:197.75 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:131 SETPOINT: 190.00 IN:198.25 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:132 SETPOINT: 192.50 IN:198.75 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:133 SETPOINT: 192.50 IN:199.00 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:134 SETPOINT: 192.50 IN:199.50 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:135 SETPOINT: 192.50 IN:199.75 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:136 SETPOINT: 192.50 IN:199.75 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:137 SETPOINT: 195.00 IN:200.25 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:138 SETPOINT: 195.00 IN:200.25 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:139 SETPOINT: 195.00 IN:200.50 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:140 SETPOINT: 195.00 IN:200.75 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:141 SETPOINT: 195.00 IN:201.00 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:142 SETPOINT: 197.50 IN:201.00 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:143 SETPOINT: 197.50 IN:201.25 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:144 SETPOINT: 197.50 IN:201.50 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:145 SETPOINT: 197.50 IN:201.50 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:146 SETPOINT: 197.50 IN:201.50 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:147 SETPOINT: 202.50 IN:201.50 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:148 SETPOINT: 202.50 IN:201.25 OUT:300.05 RAMP:-0.25 REFLOW:0 DWELL:0
T:149 SETPOINT: 202.50 IN:201.25 OUT:375.11 RAMP:0.00 REFLOW:0 DWELL:0
T:150 SETPOINT: 202.50 IN:201.25 OUT:375.17 RAMP:0.00 REFLOW:0 DWELL:0
T:151 SETPOINT: 205.00 IN:201.25 OUT:1125.30 RAMP:0.00 REFLOW:0 DWELL:0
T:152 SETPOINT: 205.00 IN:201.25 OUT:1125.49 RAMP:0.00 REFLOW:0 DWELL:0
T:153 SETPOINT: 205.00 IN:201.50 OUT:1050.67 RAMP:0.00 REFLOW:0 DWELL:0
T:154 SETPOINT: 207.50 IN:202.00 OUT:975.83 RAMP:0.25 REFLOW:0 DWELL:0
T:155 SETPOINT: 207.50 IN:202.25 OUT:1226.11 RAMP:0.00 REFLOW:0 DWELL:0
T:156 SETPOINT: 207.50 IN:202.75 OUT:1501.36 RAMP:0.25 REFLOW:0 DWELL:0
T:157 SETPOINT: 207.50 IN:203.00 OUT:1001.59 RAMP:0.00 REFLOW:0 DWELL:0
T:158 SETPOINT: 210.00 IN:203.50 OUT:1601.87 RAMP:0.00 REFLOW:0 DWELL:0
T:159 SETPOINT: 210.00 IN:204.00 OUT:1452.19 RAMP:0.00 REFLOW:0 DWELL:0
T:160 SETPOINT: 210.00 IN:205.00 OUT:1227.47 RAMP:0.25 REFLOW:0 DWELL:0
T:161 SETPOINT: 212.50 IN:206.00 OUT:927.70 RAMP:0.25 REFLOW:0 DWELL:0
T:162 SETPOINT: 212.50 IN:206.75 OUT:1803.01 RAMP:0.25 REFLOW:0 DWELL:0
T:163 SETPOINT: 212.50 IN:208.00 OUT:728.27 RAMP:0.25 REFLOW:0 DWELL:0
T:164 SETPOINT: 212.50 IN:209.25 OUT:778.48 RAMP:0.50 REFLOW:0 DWELL:0
T:165 SETPOINT: 215.00 IN:210.50 OUT:728.68 RAMP:0.25 REFLOW:0 DWELL:0
T:166 SETPOINT: 215.00 IN:212.00 OUT:703.88 RAMP:0.50 REFLOW:0 DWELL:0
T:167 SETPOINT: 215.00 IN:213.50 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:168 SETPOINT: 217.50 IN:215.75 OUT:0.00 RAMP:0.75 REFLOW:0 DWELL:0
T:169 SETPOINT: 217.50 IN:217.75 OUT:0.00 RAMP:0.50 REFLOW:0 DWELL:0
T:170 SETPOINT: 217.50 IN:219.50 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:171 SETPOINT: 217.50 IN:221.75 OUT:0.00 RAMP:0.50 REFLOW:0 DWELL:0
T:172 SETPOINT: 220.00 IN:223.50 OUT:0.00 RAMP:0.25 REFLOW:171 DWELL:0
T:173 SETPOINT: 220.00 IN:225.75 OUT:0.00 RAMP:0.50 REFLOW:171 DWELL:0
T:174 SETPOINT: 220.00 IN:228.00 OUT:0.00 RAMP:0.75 REFLOW:171 DWELL:0
T:175 SETPOINT: 222.50 IN:230.50 OUT:0.00 RAMP:0.75 REFLOW:171 DWELL:0
T:176 SETPOINT: 222.50 IN:232.50 OUT:0.00 RAMP:0.50 REFLOW:171 DWELL:0
T:177 SETPOINT: 222.50 IN:235.00 OUT:0.00 RAMP:0.50 REFLOW:171 DWELL:0
T:178 SETPOINT: 222.50 IN:237.25 OUT:0.00 RAMP:0.50 REFLOW:171 DWELL:0
T:179 SETPOINT: 225.00 IN:239.25 OUT:0.00 RAMP:0.50 REFLOW:171 DWELL:0
T:180 SETPOINT: 225.00 IN:241.00 OUT:0.00 RAMP:0.25 REFLOW:171 DWELL:0
T:181 SETPOINT: 225.00 IN:242.75 OUT:0.00 RAMP:0.50 REFLOW:171 DWELL:0
T:182 SETPOINT: 225.00 IN:243.25 OUT:0.00 RAMP:0.00 REFLOW:171 DWELL:0
T:183 SETPOINT: 227.50 IN:242.50 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:0
T:184 SETPOINT: 227.50 IN:241.75 OUT:0.00 RAMP:0.00 REFLOW:171 DWELL:0
T:185 SETPOINT: 227.50 IN:241.75 OUT:0.00 RAMP:0.00 REFLOW:171 DWELL:0
T:186 SETPOINT: 230.00 IN:241.75 OUT:0.00 RAMP:0.00 REFLOW:171 DWELL:0
T:187 SETPOINT: 230.00 IN:241.25 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:0
T:188 SETPOINT: 230.00 IN:241.25 OUT:0.00 RAMP:0.00 REFLOW:171 DWELL:0
T:189 SETPOINT: 230.00 IN:242.50 OUT:0.00 RAMP:0.25 REFLOW:171 DWELL:0
T:190 SETPOINT: 232.50 IN:243.25 OUT:0.00 RAMP:0.25 REFLOW:171 DWELL:0
T:191 SETPOINT: 232.50 IN:244.50 OUT:0.00 RAMP:0.25 REFLOW:171 DWELL:0
T:192 SETPOINT: 232.50 IN:246.25 OUT:0.00 RAMP:0.50 REFLOW:171 DWELL:0
T:193 SETPOINT: 235.00 IN:247.75 OUT:0.00 RAMP:0.25 REFLOW:171 DWELL:0
T:194 SETPOINT: 235.00 IN:249.50 OUT:0.00 RAMP:0.50 REFLOW:171 DWELL:0
T:195 SETPOINT: 235.00 IN:250.75 OUT:0.00 RAMP:0.25 REFLOW:171 DWELL:0
T:196 SETPOINT: 235.00 IN:251.50 OUT:0.00 RAMP:0.00 REFLOW:171 DWELL:0
T:197 SETPOINT: 237.50 IN:251.75 OUT:0.00 RAMP:0.00 REFLOW:171 DWELL:0
T:198 SETPOINT: 237.50 IN:251.75 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:0
T:199 SETPOINT: 237.50 IN:251.75 OUT:0.00 RAMP:0.00 REFLOW:171 DWELL:0
T:200 SETPOINT: 240.00 IN:252.00 OUT:0.00 RAMP:0.25 REFLOW:171 DWELL:0
T:201 SETPOINT: 240.00 IN:252.00 OUT:0.00 RAMP:0.00 REFLOW:171 DWELL:0
T:202 SETPOINT: 240.00 IN:251.75 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:0
T:203 SETPOINT: 240.00 IN:251.25 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:0
T:204 SETPOINT: 100.00 IN:250.75 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:0
T:205 SETPOINT: 100.00 IN:249.75 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:0
T:206 SETPOINT: 100.00 IN:249.00 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:0
T:207 SETPOINT: 100.00 IN:248.75 OUT:0.00 RAMP:0.00 REFLOW:171 DWELL:0
T:208 SETPOINT: 100.00 IN:248.25 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:0
T:209 SETPOINT: 100.00 IN:247.25 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:0
T:210 SETPOINT: 100.00 IN:246.00 OUT:0.00 RAMP:-0.50 REFLOW:171 DWELL:0
T:211 SETPOINT: 100.00 IN:245.00 OUT:0.00 RAMP:0.00 REFLOW:171 DWELL:0
T:212 SETPOINT: 100.00 IN:244.00 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:0
T:213 SETPOINT: 100.00 IN:243.50 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:0
T:214 SETPOINT: 100.00 IN:243.00 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:0
T:215 SETPOINT: 100.00 IN:242.25 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:0
T:216 SETPOINT: 100.00 IN:241.50 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:0
T:217 SETPOINT: 100.00 IN:240.75 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:0
T:218 SETPOINT: 100.00 IN:240.25 OUT:0.00 RAMP:0.00 REFLOW:171 DWELL:0
T:219 SETPOINT: 100.00 IN:239.75 OUT:0.00 RAMP:0.00 REFLOW:171 DWELL:0
T:220 SETPOINT: 100.00 IN:239.25 OUT:0.00 RAMP:0.00 REFLOW:171 DWELL:0
T:221 SETPOINT: 100.00 IN:239.00 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:0
T:222 SETPOINT: 100.00 IN:238.75 OUT:0.00 RAMP:0.00 REFLOW:171 DWELL:0
T:223 SETPOINT: 100.00 IN:238.00 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:0
T:224 SETPOINT: 100.00 IN:237.25 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:0
T:225 SETPOINT: 100.00 IN:236.50 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:0
T:226 SETPOINT: 100.00 IN:236.00 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:0
T:227 SETPOINT: 100.00 IN:235.75 OUT:0.00 RAMP:0.00 REFLOW:171 DWELL:0
T:228 SETPOINT: 100.00 IN:235.25 OUT:0.00 RAMP:0.00 REFLOW:171 DWELL:0
T:229 SETPOINT: 100.00 IN:234.75 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:0
T:230 SETPOINT: 100.00 IN:234.25 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:0
T:231 SETPOINT: 100.00 IN:233.50 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:0
T:232 SETPOINT: 100.00 IN:233.00 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:0
T:233 SETPOINT: 100.00 IN:233.00 OUT:0.00 RAMP:0.25 REFLOW:171 DWELL:0
T:234 SETPOINT: 100.00 IN:232.25 OUT:0.00 RAMP:0.00 REFLOW:171 DWELL:0
T:235 SETPOINT: 100.00 IN:231.50 OUT:0.00 RAMP:0.00 REFLOW:171 DWELL:0
T:236 SETPOINT: 100.00 IN:230.75 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:0
T:237 SETPOINT: 100.00 IN:230.50 OUT:0.00 RAMP:0.00 REFLOW:171 DWELL:0
T:238 SETPOINT: 100.00 IN:230.25 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:0
T:239 SETPOINT: 100.00 IN:229.50 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:0
T:240 SETPOINT: 100.00 IN:228.25 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:0
T:241 SETPOINT: 100.00 IN:227.00 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:0
T:242 SETPOINT: 100.00 IN:225.75 OUT:0.00 RAMP:-0.50 REFLOW:171 DWELL:0
T:243 SETPOINT: 100.00 IN:225.25 OUT:0.00 RAMP:0.00 REFLOW:171 DWELL:0
T:244 SETPOINT: 100.00 IN:224.75 OUT:0.00 RAMP:0.00 REFLOW:171 DWELL:0
T:245 SETPOINT: 100.00 IN:224.00 OUT:0.00 RAMP:-0.50 REFLOW:171 DWELL:0
T:246 SETPOINT: 100.00 IN:221.50 OUT:0.00 RAMP:-0.75 REFLOW:171 DWELL:0
T:247 SETPOINT: 100.00 IN:217.50 OUT:0.00 RAMP:-1.00 REFLOW:171 DWELL:0
T:248 SETPOINT: 100.00 IN:213.75 OUT:0.00 RAMP:-1.00 REFLOW:171 DWELL:76
T:249 SETPOINT: 100.00 IN:209.75 OUT:0.00 RAMP:-1.50 REFLOW:171 DWELL:76
T:250 SETPOINT: 100.00 IN:205.50 OUT:0.00 RAMP:-1.00 REFLOW:171 DWELL:76
T:251 SETPOINT: 100.00 IN:201.00 OUT:0.00 RAMP:-1.25 REFLOW:171 DWELL:76
T:252 SETPOINT: 100.00 IN:197.25 OUT:0.00 RAMP:-0.75 REFLOW:171 DWELL:76
ÅT:253 SETPOINT: 100.00 IN:193.25 OUT:0.00 RAMP:-1.00 REFLOW:171 DWELL:76
T:254 SETPOINT: 100.00 IN:189.50 OUT:0.00 RAMP:-1.00 REFLOW:171 DWELL:76
T:255 SETPOINT: 100.00 IN:185.75 OUT:0.00 RAMP:-1.25 REFLOW:171 DWELL:76
T:256 SETPOINT: 100.00 IN:183.00 OUT:0.00 RAMP:-0.50 REFLOW:171 DWELL:76
T:257 SETPOINT: 100.00 IN:180.50 OUT:0.00 RAMP:-0.50 REFLOW:171 DWELL:76
T:258 SETPOINT: 100.00 IN:178.00 OUT:0.00 RAMP:-0.50 REFLOW:171 DWELL:76
T:259 SETPOINT: 100.00 IN:175.75 OUT:0.00 RAMP:-0.50 REFLOW:171 DWELL:76
T:260 SETPOINT: 100.00 IN:173.75 OUT:0.00 RAMP:-0.50 REFLOW:171 DWELL:76
T:261 SETPOINT: 100.00 IN:172.00 OUT:0.00 RAMP:-0.50 REFLOW:171 DWELL:76
T:262 SETPOINT: 100.00 IN:170.50 OUT:0.00 RAMP:-0.50 REFLOW:171 DWELL:76
T:263 SETPOINT: 100.00 IN:169.00 OUT:0.00 RAMP:-0.50 REFLOW:171 DWELL:76
T:264 SETPOINT: 100.00 IN:167.75 OUT:0.00 RAMP:-0.50 REFLOW:171 DWELL:76
T:265 SETPOINT: 100.00 IN:166.50 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:76
T:266 SETPOINT: 100.00 IN:165.25 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:76
T:267 SETPOINT: 100.00 IN:164.25 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:76
T:268 SETPOINT: 100.00 IN:163.00 OUT:0.00 RAMP:-0.50 REFLOW:171 DWELL:76
T:269 SETPOINT: 100.00 IN:162.00 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:76
T:270 SETPOINT: 100.00 IN:161.50 OUT:0.00 RAMP:0.00 REFLOW:171 DWELL:76
T:271 SETPOINT: 100.00 IN:160.75 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:76
T:272 SETPOINT: 100.00 IN:160.00 OUT:0.00 RAMP:0.00 REFLOW:171 DWELL:76
T:273 SETPOINT: 100.00 IN:159.25 OUT:0.00 RAMP:0.00 REFLOW:171 DWELL:76
T:274 SETPOINT: 100.00 IN:158.50 OUT:0.00 RAMP:0.00 REFLOW:171 DWELL:76
T:275 SETPOINT: 100.00 IN:157.75 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:76
T:276 SETPOINT: 100.00 IN:157.00 OUT:0.00 RAMP:0.00 REFLOW:171 DWELL:76
T:277 SETPOINT: 100.00 IN:156.50 OUT:0.00 RAMP:0.00 REFLOW:171 DWELL:76
T:278 SETPOINT: 100.00 IN:155.50 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:76
T:279 SETPOINT: 100.00 IN:154.75 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:76
T:280 SETPOINT: 100.00 IN:154.00 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:76
T:281 SETPOINT: 100.00 IN:153.50 OUT:0.00 RAMP:0.00 REFLOW:171 DWELL:76
T:282 SETPOINT: 100.00 IN:152.75 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:76
T:283 SETPOINT: 100.00 IN:152.50 OUT:0.00 RAMP:0.00 REFLOW:171 DWELL:76
T:284 SETPOINT: 100.00 IN:152.00 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:76
T:285 SETPOINT: 100.00 IN:151.50 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:76
T:286 SETPOINT: 100.00 IN:150.75 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:76
T:287 SETPOINT: 100.00 IN:150.00 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:76
T:288 SETPOINT: 100.00 IN:149.25 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:76
T:289 SETPOINT: 100.00 IN:148.50 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:76
T:290 SETPOINT: 100.00 IN:147.50 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:76
T:291 SETPOINT: 100.00 IN:147.50 OUT:0.00 RAMP:0.00 REFLOW:171 DWELL:76
T:292 SETPOINT: 100.00 IN:148.00 OUT:0.00 RAMP:0.25 REFLOW:171 DWELL:76
T:293 SETPOINT: 100.00 IN:148.50 OUT:0.00 RAMP:0.00 REFLOW:171 DWELL:76
T:294 SETPOINT: 100.00 IN:148.75 OUT:0.00 RAMP:0.00 REFLOW:171 DWELL:76
T:295 SETPOINT: 100.00 IN:148.00 OUT:0.00 RAMP:0.00 REFLOW:171 DWELL:76
T:296 SETPOINT: 100.00 IN:148.00 OUT:0.00 RAMP:0.25 REFLOW:171 DWELL:76
T:297 SETPOINT: 100.00 IN:146.75 OUT:0.00 RAMP:0.00 REFLOW:171 DWELL:76
T:298 SETPOINT: 100.00 IN:145.00 OUT:0.00 RAMP:-0.50 REFLOW:171 DWELL:76
T:299 SETPOINT: 100.00 IN:142.50 OUT:0.00 RAMP:-0.75 REFLOW:171 DWELL:76
T:300 SETPOINT: 100.00 IN:140.50 OUT:0.00 RAMP:-0.50 REFLOW:171 DWELL:76
T:301 SETPOINT: 100.00 IN:137.75 OUT:0.00 RAMP:-0.50 REFLOW:171 DWELL:76
T:302 SETPOINT: 100.00 IN:135.50 OUT:0.00 RAMP:-0.50 REFLOW:171 DWELL:76
T:303 SETPOINT: 100.00 IN:132.75 OUT:0.00 RAMP:-0.75 REFLOW:171 DWELL:76
T:304 SETPOINT: 100.00 IN:130.25 OUT:0.00 RAMP:-0.50 REFLOW:171 DWELL:76
T:305 SETPOINT: 100.00 IN:127.75 OUT:0.00 RAMP:-0.75 REFLOW:171 DWELL:76
T:306 SETPOINT: 100.00 IN:125.00 OUT:0.00 RAMP:-0.75 REFLOW:171 DWELL:76
T:307 SETPOINT: 100.00 IN:122.50 OUT:0.00 RAMP:-0.50 REFLOW:171 DWELL:76
T:308 SETPOINT: 100.00 IN:120.25 OUT:0.00 RAMP:-0.50 REFLOW:171 DWELL:76
T:309 SETPOINT: 100.00 IN:117.75 OUT:0.00 RAMP:-0.75 REFLOW:171 DWELL:76
T:310 SETPOINT: 100.00 IN:115.50 OUT:0.00 RAMP:-0.50 REFLOW:171 DWELL:76
T:311 SETPOINT: 100.00 IN:113.25 OUT:0.00 RAMP:-0.50 REFLOW:171 DWELL:76
T:312 SETPOINT: 100.00 IN:111.00 OUT:0.00 RAMP:-0.75 REFLOW:171 DWELL:76
T:313 SETPOINT: 100.00 IN:108.75 OUT:0.00 RAMP:-0.50 REFLOW:171 DWELL:76
T:314 SETPOINT: 100.00 IN:106.75 OUT:0.00 RAMP:-0.50 REFLOW:171 DWELL:76
T:315 SETPOINT: 100.00 IN:104.75 OUT:0.00 RAMP:-0.25 REFLOW:171 DWELL:76
T:316 SETPOINT: 100.00 IN:102.75 OUT:0.00 RAMP:-0.50 REFLOW:171 DWELL:76
T:317 SETPOINT: 100.00 IN:100.75 OUT:325.00 RAMP:-0.50 REFLOW:171 DWELL:76

So ...Manually :

-Peak temp @ 252°C for ~ sec ( T=200-201 ) : ...Ok ....Manually done ..Let's just do not forget that ...
- max Preheat slope : 1°C/sec : pfffffffffffffffffffffffffff...................Sucks
-Time above 217 °C : 76 sec ( Sweet !!! )
-Time when reflow started : 171 sec => ~60 sec preheating + ~110 sec soaking ...Sweet !!!!
-Soaking & reflowing slopes are close to perfect !
......

So far ....
So good ....

 

[OldGrowth420]

I thought you might need this as well

[video=youtube;9wCJPm19XYQ]http://www.youtube.com/watch?v=9wCJPm19XYQ[/video]

 

[stardustsailor]

And these are the results of first automated -yes-,but UNCALIBRATED system test ....

-A mcpcb of 45 x 55 mm was used as test mc pcb . (a destroyed one ,same like those on the GD-SDS system )
-TC was attached with Kapton & Alum tapes ,to the (upper...) surface of mc pcb .
-PID variables are OVEN calibrated.Not for hot plate ...
-Cooling was done with the high-tech technique of waving a magazine over the mcpcb ....Yeah ...Tech far from ....past ....
.....

PID variables have to be calibrated to suit the hot plating ....

Results :

REALTIME PLOT:
......

DATA :

T:1 SETPOINT: 48.00 IN:34.25 OUT:1605.28 RAMP:0.25 REFLOW:0 DWELL:0
T:2 SETPOINT: 51.00 IN:35.75 OUT:1735.63 RAMP:0.25 REFLOW:0 DWELL:0
T:3 SETPOINT: 51.00 IN:37.25 OUT:1631.00 RAMP:0.50 REFLOW:0 DWELL:0
T:4 SETPOINT: 54.00 IN:38.50 OUT:1781.38 RAMP:0.25 REFLOW:0 DWELL:0
T:5 SETPOINT: 57.00 IN:40.00 OUT:1931.77 RAMP:0.25 REFLOW:0 DWELL:0
T:6 SETPOINT: 57.00 IN:41.50 OUT:1807.18 RAMP:0.50 REFLOW:0 DWELL:0
T:7 SETPOINT: 60.00 IN:43.00 OUT:1912.61 RAMP:0.25 REFLOW:0 DWELL:0
T:8 SETPOINT: 63.00 IN:44.50 OUT:2000.00 RAMP:0.25 REFLOW:0 DWELL:0
T:9 SETPOINT: 63.00 IN:46.00 OUT:1913.49 RAMP:0.25 REFLOW:0 DWELL:0
T:10 SETPOINT: 66.00 IN:48.00 OUT:2000.00 RAMP:0.75 REFLOW:0 DWELL:0
T:11 SETPOINT: 69.00 IN:49.50 OUT:2000.00 RAMP:0.50 REFLOW:0 DWELL:0
T:12 SETPOINT: 69.00 IN:51.50 OUT:2000.00 RAMP:0.75 REFLOW:0 DWELL:0
T:13 SETPOINT: 72.00 IN:53.25 OUT:2000.00 RAMP:0.50 REFLOW:0 DWELL:0
T:14 SETPOINT: 75.00 IN:55.25 OUT:2000.00 RAMP:0.50 REFLOW:0 DWELL:0
T:15 SETPOINT: 75.00 IN:57.50 OUT:1991.30 RAMP:0.50 REFLOW:0 DWELL:0
T:16 SETPOINT: 78.00 IN:59.50 OUT:2000.00 RAMP:0.50 REFLOW:0 DWELL:0
T:17 SETPOINT: 81.00 IN:61.75 OUT:2000.00 RAMP:0.50 REFLOW:0 DWELL:0
T:18 SETPOINT: 81.00 IN:64.25 OUT:1917.69 RAMP:0.50 REFLOW:0 DWELL:0
T:19 SETPOINT: 84.00 IN:66.75 OUT:1993.14 RAMP:0.75 REFLOW:0 DWELL:0
T:20 SETPOINT: 87.00 IN:69.25 OUT:1998.56 RAMP:0.50 REFLOW:0 DWELL:0
T:21 SETPOINT: 87.00 IN:72.00 OUT:1768.98 RAMP:0.75 REFLOW:0 DWELL:0
T:22 SETPOINT: 90.00 IN:74.75 OUT:1774.39 RAMP:0.75 REFLOW:0 DWELL:0
T:23 SETPOINT: 93.00 IN:77.50 OUT:1844.77 RAMP:1.00 REFLOW:0 DWELL:0
T:24 SETPOINT: 93.00 IN:80.00 OUT:1525.13 RAMP:0.50 REFLOW:0 DWELL:0
T:25 SETPOINT: 96.00 IN:83.00 OUT:1550.48 RAMP:0.75 REFLOW:0 DWELL:0
T:26 SETPOINT: 99.00 IN:85.75 OUT:1530.80 RAMP:0.50 REFLOW:0 DWELL:0
T:27 SETPOINT: 99.00 IN:88.50 OUT:1276.10 RAMP:0.50 REFLOW:0 DWELL:0
T:28 SETPOINT: 102.00 IN:91.50 OUT:1301.39 RAMP:0.75 REFLOW:0 DWELL:0
T:29 SETPOINT: 105.00 IN:94.25 OUT:1346.65 RAMP:0.75 REFLOW:0 DWELL:0
T:30 SETPOINT: 105.00 IN:97.25 OUT:1071.89 RAMP:1.00 REFLOW:0 DWELL:0
T:31 SETPOINT: 108.00 IN:100.00 OUT:1072.11 RAMP:0.75 REFLOW:0 DWELL:0
T:32 SETPOINT: 111.00 IN:102.75 OUT:1122.31 RAMP:1.00 REFLOW:0 DWELL:0
T:33 SETPOINT: 111.00 IN:105.25 OUT:802.49 RAMP:0.50 REFLOW:0 DWELL:0
T:34 SETPOINT: 114.00 IN:108.00 OUT:872.67 RAMP:0.75 REFLOW:0 DWELL:0
T:35 SETPOINT: 117.00 IN:110.75 OUT:877.81 RAMP:0.75 REFLOW:0 DWELL:0
T:36 SETPOINT: 117.00 IN:113.25 OUT:647.94 RAMP:0.75 REFLOW:0 DWELL:0
T:37 SETPOINT: 120.00 IN:115.75 OUT:678.07 RAMP:0.75 REFLOW:0 DWELL:0
T:38 SETPOINT: 123.00 IN:118.00 OUT:728.18 RAMP:0.50 REFLOW:0 DWELL:0
T:39 SETPOINT: 123.00 IN:120.25 OUT:523.28 RAMP:0.50 REFLOW:0 DWELL:0
T:40 SETPOINT: 126.00 IN:122.50 OUT:598.38 RAMP:0.50 REFLOW:0 DWELL:0
T:41 SETPOINT: 129.00 IN:124.75 OUT:673.47 RAMP:0.50 REFLOW:0 DWELL:0
T:42 SETPOINT: 129.00 IN:126.75 OUT:473.55 RAMP:0.50 REFLOW:0 DWELL:0
T:43 SETPOINT: 132.00 IN:128.75 OUT:573.65 RAMP:0.50 REFLOW:0 DWELL:0
T:44 SETPOINT: 135.00 IN:130.50 OUT:653.73 RAMP:0.25 REFLOW:0 DWELL:0
T:45 SETPOINT: 135.00 IN:132.50 OUT:543.82 RAMP:0.75 REFLOW:0 DWELL:0
T:46 SETPOINT: 138.00 IN:134.00 OUT:623.93 RAMP:0.25 REFLOW:0 DWELL:0
T:47 SETPOINT: 141.00 IN:135.75 OUT:794.03 RAMP:0.50 REFLOW:0 DWELL:0
T:48 SETPOINT: 141.00 IN:137.25 OUT:599.15 RAMP:0.25 REFLOW:0 DWELL:0
T:49 SETPOINT: 144.00 IN:138.75 OUT:794.28 RAMP:0.50 REFLOW:0 DWELL:0
T:50 SETPOINT: 147.00 IN:140.25 OUT:944.42 RAMP:0.50 REFLOW:0 DWELL:0
T:51 SETPOINT: 147.00 IN:141.50 OUT:774.58 RAMP:0.25 REFLOW:0 DWELL:0
T:52 SETPOINT: 151.25 IN:143.00 OUT:2000.00 RAMP:0.50 REFLOW:0 DWELL:0
T:53 SETPOINT: 151.25 IN:144.50 OUT:2000.00 RAMP:0.50 REFLOW:0 DWELL:0
T:54 SETPOINT: 152.50 IN:146.00 OUT:2000.00 RAMP:0.50 REFLOW:0 DWELL:0
T:55 SETPOINT: 152.50 IN:147.25 OUT:1640.96 RAMP:0.25 REFLOW:0 DWELL:0
T:56 SETPOINT: 152.50 IN:149.00 OUT:1191.19 RAMP:0.50 REFLOW:0 DWELL:0
T:57 SETPOINT: 153.75 IN:150.75 OUT:791.38 RAMP:0.50 REFLOW:0 DWELL:0
T:58 SETPOINT: 153.75 IN:152.25 OUT:266.50 RAMP:0.25 REFLOW:0 DWELL:0
T:59 SETPOINT: 155.00 IN:154.25 OUT:116.55 RAMP:0.50 REFLOW:0 DWELL:0
T:60 SETPOINT: 155.00 IN:156.00 OUT:0.00 RAMP:0.75 REFLOW:0 DWELL:0
T:61 SETPOINT: 155.00 IN:157.75 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:62 SETPOINT: 156.25 IN:159.50 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:63 SETPOINT: 156.25 IN:161.25 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:64 SETPOINT: 157.50 IN:163.00 OUT:0.00 RAMP:0.50 REFLOW:0 DWELL:0
T:65 SETPOINT: 157.50 IN:164.50 OUT:0.00 RAMP:0.50 REFLOW:0 DWELL:0
T:66 SETPOINT: 157.50 IN:166.00 OUT:0.00 RAMP:0.50 REFLOW:0 DWELL:0
T:67 SETPOINT: 158.75 IN:167.50 OUT:0.00 RAMP:0.50 REFLOW:0 DWELL:0
T:68 SETPOINT: 158.75 IN:168.50 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:69 SETPOINT: 160.00 IN:169.50 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:70 SETPOINT: 160.00 IN:170.50 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:71 SETPOINT: 160.00 IN:171.50 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:72 SETPOINT: 161.25 IN:172.50 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:73 SETPOINT: 161.25 IN:173.50 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:74 SETPOINT: 162.50 IN:174.50 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
T:75 SETPOINT: 162.50 IN:175.25 OUT:0.00 RAMP:0.25 REFLOW:0 DWELL:0
T:76 SETPOINT: 162.50 IN:176.00 OUT:0.00 RAMP:0.00 REFLOW:0 DWELL:0
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T:295 SETPOINT: 100.00 IN:162.50 OUT:0.00 RAMP:-1.50 REFLOW:163 DWELL:84
T:296 SETPOINT: 100.00 IN:154.50 OUT:0.00 RAMP:-2.00 REFLOW:163 DWELL:84
T:297 SETPOINT: 100.00 IN:149.25 OUT:0.00 RAMP:-1.00 REFLOW:163 DWELL:84
T:298 SETPOINT: 100.00 IN:143.25 OUT:0.00 RAMP:-1.75 REFLOW:163 DWELL:84
T:299 SETPOINT: 100.00 IN:138.50 OUT:0.00 RAMP:-0.75 REFLOW:163 DWELL:84
T:300 SETPOINT: 100.00 IN:135.00 OUT:0.00 RAMP:-1.25 REFLOW:163 DWELL:84
T:301 SETPOINT: 100.00 IN:131.00 OUT:0.00 RAMP:-1.00 REFLOW:163 DWELL:84
T:302 SETPOINT: 100.00 IN:128.25 OUT:0.00 RAMP:-1.00 REFLOW:163 DWELL:84
T:303 SETPOINT: 100.00 IN:124.75 OUT:0.00 RAMP:-0.75 REFLOW:163 DWELL:84
T:304 SETPOINT: 100.00 IN:122.50 OUT:0.00 RAMP:-0.50 REFLOW:163 DWELL:84
T:305 SETPOINT: 100.00 IN:119.25 OUT:0.00 RAMP:-1.00 REFLOW:163 DWELL:84
T:306 SETPOINT: 100.00 IN:117.25 OUT:0.00 RAMP:-0.50 REFLOW:163 DWELL:84
T:307 SETPOINT: 100.00 IN:117.00 OUT:0.00 RAMP:0.00 REFLOW:163 DWELL:84
T:308 SETPOINT: 100.00 IN:115.75 OUT:0.00 RAMP:-0.75 REFLOW:163 DWELL:84
T:309 SETPOINT: 100.00 IN:113.25 OUT:0.00 RAMP:-0.50 REFLOW:163 DWELL:84
T:310 SETPOINT: 100.00 IN:111.25 OUT:0.00 RAMP:-0.50 REFLOW:163 DWELL:84
T:311 SETPOINT: 100.00 IN:109.00 OUT:0.00 RAMP:-0.50 REFLOW:163 DWELL:84
T:312 SETPOINT: 100.00 IN:106.25 OUT:0.00 RAMP:-0.75 REFLOW:163 DWELL:84
T:313 SETPOINT: 100.00 IN:104.50 OUT:0.00 RAMP:-0.50 REFLOW:163 DWELL:84
T:314 SETPOINT: 100.00 IN:102.00 OUT:650.00 RAMP:-0.50 REFLOW:163 DWELL:84
T:315 SETPOINT: 100.00 IN:100.75 OUT:50.00 RAMP:-0.25 REFLOW:163 DWELL:84

There's a bug with the ramp variable ...
Have to solve it out ...

 

[stardustsailor]

Soon I'll be able to reflow -properly-some leds .....

test #2 auto-uncalibrated still

[video=youtube;gK1iKprJYk0]http://www.youtube.com/watch?v=gK1iKprJYk0&feature=youtu.be[/video]

 

[stardustsailor]

Hel'yeah !!!!
That's what I call a good & more than acceptable , reflow soldering test profile....

Begun calibrating ....

....

247 °C peak ,84 sec dwell time ...
........SWWWWWEEEEEETTTTTT!!!!!!!!!

 

[stardustsailor]

And .....Fifth day of third week into flowering .....

 

[stardustsailor]

Ok .......
Imagine how I feel right now ....

I can already make my own metal core pcbs and choose to have whatever type of led I'd like to have on them ....
In any placement I like / choose ....

Now, I'm really close to a really finely tuned,precise and of high quality reflow procedure ...
All it needs is .....
A bit more precise " PID and Profile parameters" calibrating and it's done ....

...vs .....

 

[ganja 2]

what's new ???

 

[Fonzarelli]

Ok .......
Imagine how I feel right now ....

I can already make my own metal core pcbs and choose to have whatever type of led I'd like to have on them ....
In any placement I like / choose ....

Now, I'm really close to a really finely tuned,precise and of high quality reflow procedure ...
All it needs is .....
A bit more precise " PID and Profile parameters" calibrating and it's done ....

View attachment 2693972...vs .....View attachment 2693973

What do you do if a LED goes bad on your PCB board? Will it make them all shut off? How do you replace one LED if they are all soldered to the same PCB?

At first I was thinking how nice it would be to reflow ALL the LEDs onto one PCB board but after realizing that shit happens and nothing is perfect I feel it is best to stick with individual stars even though it's extra work and time. The nice thing about individual stars is that you can move them around and change spectrum any time you want to. With a single board with all LEDs soldered onto it you can't. If an LED goes out you just leave it?

 

[RainerRocks]

Just break the solder of the bad one so it's not connected to the rest of the leds ,then resolder around it (by-pass) to
the good ones before and after it.


This is the reason I didn't go this route and instead bought the solderless crees at rapidled.One goes bad I just disconnect
it and plug in a new one.

What do you do if a LED goes bad on your PCB board? Will it make them all shut off? How do you replace one LED if they are all soldered to the same PCB?

At first I was thinking how nice it would be to reflow ALL the LEDs onto one PCB board but after realizing that shit happens and nothing is perfect I feel it is best to stick with individual stars even though it's extra work and time. The nice thing about individual stars is that you can move them around and change spectrum any time you want to. With a single board with all LEDs soldered onto it you can't. If an LED goes out you just leave it?

 

[stardustsailor]

What do you do if a LED goes bad on your PCB board? Will it make them all shut off? How do you replace one LED if they are all soldered to the same PCB?

At first I was thinking how nice it would be to reflow ALL the LEDs onto one PCB board but after realizing that shit happens and nothing is perfect I feel it is best to stick with individual stars even though it's extra work and time. The nice thing about individual stars is that you can move them around and change spectrum any time you want to. With a single board with all LEDs soldered onto it you can't. If an LED goes out you just leave it?

Well ,I've it covered already in some thread ..

Don't remember where ,though...

I use a camping gas stove and a powerful huge fan ...
I reflow -rework half/quarter parts of the heatsink ...
..
Have done it already more than 5-6 times with my current lights ...

If you know what you're doing ..
( Ain't that easy like with kitchen's stove hot plating ...And it is way dangerous ...)

There's no problem at all ...

But needs kinda high level of experience with reflow soldering and reworking procedures/allowances and of course special tools & equip ...

( Grounding wrist wrap,nitrile gloves,dissipative pliers ,heatsink holder ,
K type thermocouple temp measuring ,chronometer with alarms ,
fast & steady hand operations,etc...)

Ain't for the 'faint at heart',4 sure ...

But ,once you manage successfully ,once or twice ...
Then it becomes ,sort of a boring ,time-consuming , ' routine '..