@nca78 said in SMD Reflow Oven / PID:

small 10*10cm hotplate

interesting. Do you use an ordinary kitchen hotplate?

@neverdie c'mon, you don't need any special syringe. Ordinary BD will do
Regarding the motor operated one, I actually printed out a full set of 3d parts for the motor oerated syringe but never assembled as there is no need.
If I ever decide to automate the process, I'll make an air driven station with 2 valves. Mechanic solder syringes are supposed to be used with this type of dispensers.

@neverdie yes, although I use the one in small cans and reload small amount into 1 ml syringe (with proper gauge needle!)

https://www.aliexpress.com/item/Original-Low-temperature-soldering-Paste-Flux-MECHANIC-B80-60g-Solder-tin-paste-Sn42-Bi58-For-Hakko/32878574326.html?spm=2114.search0204.3.1.51224cc6X3Qstz&s=p&ws_ab_test=searchweb0_0,searchweb201602_5_10152_10151_10065_10344_10068_5722815_10342_10343_10340_5722915_10341_10543_5722615_10696_10084_10083_10618_10307_10301_5722715_10059_100031_10103_10624_10623_10622_5722515_10621_10620,searchweb201603_55,ppcSwitch_5_ppcChannel&priceBeautifyAB=0

This bottle contains all the needles conviniently cut

https://www.aliexpress.com/item/50ml-Empty-E-liquid-Plastic-Rosin-Flux-Alcohol-Bottle-For-Dispenser-Rosin-Solder-Flux-Paste-11/32810052820.html?spm=2114.search0204.3.14.37687b2184NHbx&ws_ab_test=searchweb0_0,searchweb201602_5_10152_10151_10065_10344_10068_5722815_10342_10343_10340_5722915_10341_10543_5722615_10696_10084_10083_10618_10307_10301_5722715_10059_100031_10103_10624_10623_10622_5722515_10621_10620-10620,searchweb201603_55,ppcSwitch_5_ppcChannel&algo_expid=47557fe8-25e4-4763-96f0-5831fc4e628f-1&algo_pvid=47557fe8-25e4-4763-96f0-5831fc4e628f&priceBeautifyAB=0

50ml Empty E-liquid Plastic Rosin Flux Alcohol Bottle For Dispenser Rosin Solder Flux Paste +11 Needles Tool Parts

$0.99

@neverdie
two hypothesis:
a) old paste
b) wrong needle gauge

I use Mechanic XG paste, works perfect

@neverdie said in nRF5 action!:

I didn't have good enough technique dispensing manually directly from a solder paste syringe,

what did you have issues with?

@mars-warrior said in nRF5 action!:

In the mean time I learned how a PID controller

Thanks!
I have to admit I've acquired pretty decent understanding of PID while working on my sous-vide machine

@mars-warrior said in nRF5 action!:

OSPId reflow controller

where did you get it?

Very nice indeed. I thought ground plains improve the range

@scalz actually, it might be ideal as a REPEATER given the form-factor. You just insertt it into any cheap USB charger and voila.

@scalz said in nRF5 action!:

pretty sure these are the programming pads

they are even "labeled" on the x-ray picture below