semi-automatic DIP soldering (manncorp 2100t etc) - Page 1
Forum section: electronics / projects

author: iampoor
author_rank: Frequent Contributor
timestamp: January 25, 2014, 10:32:39 am
content: HiI understand the "convential" methods of dip soldering are down right dangerous and sound like something that would have been outlawed in the mid 1800'shttps://www.eevblog.com/forum/Smileys/default/smiley_laughing.gifHowever, has anyone had any expierence with machines such as the Manncorp 2100t? Seems to have a preheating method, adjustable angle, and well overal a nice piece of kit!http://www.manncorp.com/smt/prod-600/2100T-Auto-Dip-Soldering-Machine.htmlThere are also some competing Chinesse units, altho I am skeptical and do not believe this one preheats the boards (which would be a deal breaker)http://www.1clickmachine.com/product_show.asp?id=523

author: cwalex
author_rank: Frequent Contributor
timestamp: January 26, 2014, 12:57:58 am
content: What's with the weird sound @ 1:31?

author: iampoor
author_rank: Frequent Contributor
timestamp: January 26, 2014, 03:01:46 am
content: Quote from: cwalex on January 26, 2014, 12:57:58 amlol! SOunds like she is yelling something. Or a squirrel dying....

author: Alphatronique
author_rank: Regular Contributor
timestamp: January 26, 2014, 03:09:45 am
content: Hiit do pre-heat by let PCB just over the solder ...you may dome same whit a solder pot likehttp://www.stanleysupplyservices.com/esico-80t-solder-pot-w-tray-650f-33-lb-capacity/p/112-114the fun thing is that a PCB actull float on the solderbut better to use a real wave solder for avoid thermal shock ,and best was go SMT ..Best regard

author: codeboy2k
author_rank: Super Contributor
timestamp: January 26, 2014, 03:30:08 am
content: Quote from: cwalex on January 26, 2014, 12:57:58 amPlay it backwards.. you hear "Paul McCartney is really dead this time!"I grew up on point to point using turrets (briefly) and later through hole and later SMD, and although I don't ever want to go back to through hole again, that looks like a decent system for low volumes. I do like the angle of exit, that's pretty cool.I wonder if the bed of nails will at one time or another block a pad, or stick to a pad ?By the way, for the young players amongst us... since I mentioned turrets and maybe some of you don't know what they arethey are, in my opinion, pretty awesome for prototyping with leaded parts.. again, in my opinion, much better than perf board because you can wire everything on top, don't have to keep flipping the board, and you have room to wire post to post with hookup wire. Wirewrap with a gun is faster thoughHere's a video of a guy soldering turrets:

author: iampoor
author_rank: Frequent Contributor
timestamp: January 26, 2014, 05:36:32 am
content: Quote from: Alphatronique on January 26, 2014, 03:09:45 amBut Im wondering if that time is adjustable? ANd if so, how effective it is? I would think the nails would preheat the board too.Yes I have seen the non automatic solder pot method, seems pretty inconcsistent.Unforutantly, going SMT is not an option. I do mostly tube amps. :-)Right, too bad I dont have 3 phase power and an extra building, or else I woiuld consider a real wave solder machine haha. Is there any way to eliminate thermal shock?Thanks for the comment!Quote from: codeboy2k on January 26, 2014, 03:30:08 amI stick with through hole mostly because I dont do large enough volumes for SMT, and because I do tube amps. SOldering point to point with turrets is a blast!!!

author: Alphatronique
author_rank: Regular Contributor
timestamp: January 26, 2014, 06:27:13 pm
content: Hiyou may use the esco 80T solder pot it plain 120V1-) attach thermocouple whit temp monitor to your pcb ..2-) dip in flux (make extreme cation to use the right flux since it mal literally explode in contact to solder)3-) let pcb 1/2" above the POT until temp rise to ~200 deg , play whit height for got 1 to 2 deg / segond4-) dip for 30 second raise board en enjoy O0once you got your proper height above pot and timing you may automate it ,and no thermal schockBest regard

author: iampoor
author_rank: Frequent Contributor
timestamp: January 27, 2014, 12:02:15 am
content: Quote from: Alphatronique on January 26, 2014, 06:27:13 pmVery good idea! What kind of flux is a good starting point? Ill be using 63/37 solder I believe. Also, how could I automate it? Ive looked up the soldering pot and it appears to not have any control capabilities, but maybe Im looking in the wrong place. Or do I have to deisgn a robot now too? hahahaThanks for being informative and helpful!By preheating the board, you avoid thermal shock correct? Im assuming thermal shock is like dropping an icecube in a pot of boiling water? (Well the other way around haha)

author: Alphatronique
author_rank: Regular Contributor
timestamp: January 27, 2014, 12:52:52 am
content: Hiif my memory was good pot that only 2 setting HI , LO put Hi for melt and lo once melt ..increase PC temp whit 1-2 deg /second to 220 deg was for avoid thermal shock and activte the flux ..you may refer to 63/37 a solder past reflow profile for have the right value , was myself use only lead-freeas for automated it may have different way one may have some kind of clip ,the one user on wave machinefor hold PCB and use stepper / motor + ardunino for lower and raise .. good new is that cannot go to deepsince PCB and part float on solder ..some one i knot put cold PCB right on the pot ,it have around 5-10% of PCB that solder mask peel offso better to let PCB heat up a bit above the pot ..as for flux whit Sn/Pb think that plain RA flux will do the job .. i knot that water based flux on lead freed was bad ideathe guy in question have try it and still have solder embedded into ceiling tilewater boil a 100deg so put it straight away into a 260 deg leaf-free pot was bad idea it instant boil and ex-pulse solder all around the roomflux need to raise in temp for activate then evaporate the ready for solder (here that 1-2 deg ramp to 220 deg)myself i use a table top wave that got on ebay for good price few year back , but do mostly SMTBest regardP.S i suggest that you use lead-free ,this way you may sell your product all around that globeand honestly it not really more hard that lead solder ,personally i see no difference

author: BiOzZ
author_rank: Regular Contributor
timestamp: January 27, 2014, 04:34:46 pm
content: any one else notice the audio or power jack get a glob of solder on it? lol