On Fri, 27 Jul 2018 20:18:57 +0100, you wrote:
I have a unit I like, has gun type with solder sucking pump through to the gun. However I seem to struggle when it comes to large planes of copper attached to the pad, am I doing something wrong or?
Likely not. If it's a Hakko 808 (which I have) you don't control the
temperature, it's preset. You likely don't have enough heat at the
point of contact (I'm assuming something other than surface mount
parts, not including TO-252 parts with tabs). One trick is to have a
second soldering pencil to add heat and keep the solder liquid.
Harvey
Cheers Kevin
Thanks
Kevin
On 27 Jul 2018, at 19:57, stefan_trethan <stefan_trethan@...> wrote:
If the parts don't fall out by their own weight there's something
wrong with your desoldering tool.
That transformer I mentioned the other day, which I changed 50+ times,
I did that with the (very modified) chinese Zhongdi station.
It was a 12 pin throughhole part, ground planes on one side of it, but
I did oversize the holes slightly. I always do that on prototypes
where I expect to change parts often, otherwise 50+ soldering cycles
is unrealistic and the board is toast after maybe 10-20 cycles.
I would not want to work without a desoldering station, those spring
loaded eye pokers or desoldering braid do not even compare.
Sometimes when I make prototypes I steal comonents from junk boards
rather than get my ass out of the chair and fetch new ones, that's how
a decent desoldering tool must work, at minimum.
ST
On Fri, Jul 27, 2018 at 8:47 PM, n4buq <n4buq@...> wrote:
I've used my Radio Shack solder sucker (not the bulb but the spring-loaded cylinder version) with pretty good success but I have lifted a couple of pads along the way. I really, really need to get something like the Hakko. I watched a video this morning where it was used to desolder a component board from another board that had around eight pins soldered with through-holes to the larger board. After the Hakko was finished (in less than a minute total time), the secondary board practically fell out. Impressive.
Thanks,
Barry - N4BUQ
