Author Topic: Solder paste/flux manual syringe applicator  (Read 94199 times)

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Offline mike_58

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Re: Solder paste/flux manual syringe applicator
« Reply #250 on: December 28, 2015, 07:58:26 pm »
I see the thread here has taken a turn from the original question, but figured I'd share this dispenser, (Loctite brand for $35USD), I Just ordered it last week, should get it anyday:

https://www.all-spec.com/products/98815.html

Allspec also sells the Loctite needles in a variety of gauges.
Please consider next time from here: http://www.mencinger.biz/ShopWeb.html
Thanks
« Last Edit: December 30, 2015, 04:10:39 pm by mike_58 »
 

Offline zapta

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Re: Solder paste/flux manual syringe applicator
« Reply #251 on: December 28, 2015, 09:53:54 pm »
I see the thread here has taken a turn from the original question, but figured I'd share this dispenser, (Loctite brand for $35USD), I Just ordered it last week, should get it anyday:

https://www.all-spec.com/products/98815.html

Allspec also sells the Loctite needles in a variety of gauges.

Please let us know how it works for you.
Drain the swamp.
 

Offline jangeox

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Re: Solder paste/flux manual syringe applicator
« Reply #252 on: December 29, 2015, 08:43:32 am »
Let me move with the flow just one more time  ;)
I'm the one who made the video where I cut the wire. It's true that it will also work without cutting it, but if you want a real bipolar motor, you should. Someone commented on my vid suggesting there's no need to cut it because the voltage will be the same in theory on both cuts. I measured it out, and it's true when the motor is running freely. It's not true when you add some load to it (which you always do, right?). I didn't test the torque with the wire not cut, but since there was a voltage (which means loss of power) , it might be a bit less torque.
I should point out that the actual voltage in the test was not 9V , but a rechargeble 9V battery which only provides 8.2V. The motor never overheated, so you could easily add more voltage (10-12V) and get more torque.
Later tests with the same driver chip and 24V  + other software (I programmed an Arduino sketch) gave +30% torque when I simulated a chopper driver (a bit like a constant current driver) , I don't have exact results from that test anymore.
 

Offline zapta

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Re: Solder paste/flux manual syringe applicator
« Reply #253 on: December 29, 2015, 12:19:36 pm »
Jangeox, any estimation of the torque increase if you stay with 5V?
Drain the swamp.
 

Offline mike_58

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Re: Solder paste/flux manual syringe applicator
« Reply #254 on: December 29, 2015, 03:21:06 pm »
I see the thread here has taken a turn from the original question, but figured I'd share this dispenser, (Loctite brand for $35USD), I Just ordered it last week, should get it anyday:

https://www.all-spec.com/products/98815.html

Allspec also sells the Loctite needles in a variety of gauges.
My first steps were with modification of this gun: - http://www.bison.net/en/products/659-glue-tools/product/838-glue-gun-hobby/ 
this Glue stick Gun is very cheap and can help!
 
 

Offline zapta

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Re: Solder paste/flux manual syringe applicator
« Reply #255 on: January 03, 2016, 05:45:51 pm »
Just stumbled upon this one. Not manual and not cheap but interesting nevertheless.

Drain the swamp.
 

Offline mike_58

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Re: Solder paste/flux manual syringe applicator
« Reply #256 on: January 03, 2016, 07:59:32 pm »
Well - I can not compare my work with above but there is a challenge in it!
 

Offline mike_58

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Re: Solder paste/flux manual syringe applicator
« Reply #257 on: January 04, 2016, 08:16:55 am »
Lots to learn here<
 

Offline mike_58

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Re: Solder paste/flux manual syringe applicator
« Reply #258 on: January 06, 2016, 09:29:59 am »
See this: IT WORKS GOOD enough!

 

Offline mike_58

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Re: Solder paste/flux manual syringe applicator
« Reply #259 on: January 13, 2016, 09:33:04 pm »
Hello,
Here the V3 - R1 of softwere working;


I hope you like it!
 

Offline mike_58

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Re: Solder paste/flux manual syringe applicator
« Reply #260 on: January 19, 2016, 08:37:23 pm »
A short video about good & bad (dray & hard) solder paste and how to get hard solder paste back in shape;
 

Offline mike_58

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Re: Solder paste/flux manual syringe applicator
« Reply #261 on: January 19, 2016, 08:40:09 pm »
 

Offline mike_58

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Re: Solder paste/flux manual syringe applicator
« Reply #262 on: January 23, 2016, 10:03:27 pm »
2bar office cleaner - Spray Duster pressure and stepper test:
 

Offline zapta

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Re: Solder paste/flux manual syringe applicator
« Reply #263 on: January 23, 2016, 10:14:11 pm »
2bar office cleaner - Spray Duster pressure and stepper test:

Can you explain how does it work?

I see the spray can pressurizing the syringe but the nozzle seems to come out of the motor coupler, not the syringe.
Drain the swamp.
 

Offline mike_58

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Re: Solder paste/flux manual syringe applicator
« Reply #264 on: January 23, 2016, 10:27:53 pm »
it is based on see video « Reply #257 on: January 04, 2016, 07:16:55 PM » you will find all explanations there.
Stepper is driven by 5V USB my Dispenser V3 sketch ... 
Twice in this video I add some pressure to paste in syringe. Pressure is needed only for filling up auger housing, the rest is done by stepper.
Anything else you need to know - ask- I try to explain.
« Last Edit: January 23, 2016, 10:29:49 pm by mike_58 »
 

Offline mike_58

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Re: Solder paste/flux manual syringe applicator
« Reply #265 on: February 01, 2016, 05:58:34 pm »
I was curious of the pressure inside the Spray Duster, so I purchased a cheap gauge to measure the pressure and I was surprised by getting the read out of almost 2,5 bar!!
see photo attached 
 

Offline mike_58

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Re: Solder paste/flux manual syringe applicator
« Reply #266 on: February 03, 2016, 08:37:10 am »
That USB syringe dispenser seems to  be interesting to hook up with CNC machine to paste boards cheap :D

Alex wired the stepper motor directly to the 3d printer driver (re-placed the filament extrusion stepper motor) & controls dispensing from my 5V USB dispenser V3 from the syringe with normal G-CODE (extract/retract commands) !!

 

Online Kjelt

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Re: Solder paste/flux manual syringe applicator
« Reply #267 on: February 03, 2016, 08:50:17 am »
A short video about good & bad (dray & hard) solder paste and how to get hard solder paste back in shape; 
One advice, with only stirring as shown in the video it will not always result in a good usable paste.
You better get a little out you want to use and really crush the paste so that there are no larger blobs in it, else your needle will get easily constipated.
Also I wonder if flux is needed (since the flux itself will not evaporate) or the dissolvent which is IPA. With only a few drops it will probably not matter.
 

Offline mike_58

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Re: Solder paste/flux manual syringe applicator
« Reply #268 on: February 03, 2016, 08:58:00 am »
Hello,
This is first test, which needs further testing before going to PCBs...  For this test the 5V dispenser was a bit modified to enable bolting to header and controlled by existing hardware on existing 3D printer....
« Last Edit: February 04, 2016, 06:50:56 pm by mike_58 »
 

Offline zapta

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Re: Solder paste/flux manual syringe applicator
« Reply #269 on: February 04, 2016, 04:50:24 pm »
Drain the swamp.
 

Offline mike_58

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Re: Solder paste/flux manual syringe applicator
« Reply #270 on: February 04, 2016, 06:59:29 pm »
Hello Zapta,

Thanks for the link!!
You got me into this here Zapta! - So lately I have so many orders I can not live my normal life anymore I dream and soldering with my Dispenser... 
V1 and V2 are Arduino free.
V3 has Arduino involved and ISP for updating software needs ( as on my web-page).

"Technology is nothing. What’s important is that you have a faith in people, that they’re basically good and smart, and if you give them tools, they’ll do wonderful things with them.  –Steve Jobs"
Have a great day!
« Last Edit: February 04, 2016, 10:43:25 pm by mike_58 »
 

Offline zapta

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Re: Solder paste/flux manual syringe applicator
« Reply #271 on: February 06, 2016, 03:05:51 am »
Hello Zapta,

Thanks for the link!!
You got me into this here Zapta! - So lately I have so many orders I can not live my normal life anymore I dream and soldering with my Dispenser... 
V1 and V2 are Arduino free.
V3 has Arduino involved and ISP for updating software needs ( as on my web-page).

If in the field firmware upgrade is important, you may want to consider for V4 using a LPC11U35 or similar. They can be upgraded by connecting to any computer with a standard USB cable and no special software, just a standard file copy to the device, acting as a USB flash drive.

I can send you a free ARM PRO MINI if you want to play with that MCU and then you can design your custom board.
Drain the swamp.
 

Offline mike_58

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Re: Solder paste/flux manual syringe applicator
« Reply #272 on: February 06, 2016, 11:13:43 pm »
Hello,
I appreciate your support, but my goal was and still is to keep it simple, there is one available here -  https://www.youtube.com/watch?v=e3nPmiECDfg   
-seams lots of electronics in it - I really do not want to end up with so complicated item in one hand... :-)



“Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius — and a lot of courage to move in the opposite direction.”
? Ernst F. Schumacher
« Last Edit: April 23, 2016, 05:03:26 am by mike_58 »
 

Offline mike_58

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Re: Solder paste/flux manual syringe applicator
« Reply #273 on: February 21, 2016, 11:11:58 am »
This might be interesting to watch - One of my tests
Dispenser 5V USB suction of paste into empty syringe: HARD WAY;


And here - Dispenser 5V USB filling next syringe with valve - pushing paste into next syringe;  EASY WAY;
 

Offline mike_58

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Re: Solder paste/flux manual syringe applicator
« Reply #274 on: April 23, 2016, 06:26:07 am »
Hello,
Latest (but not last) video here:
 


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