Thanks for the tip. As I say, I haven't had much experience with desoldering SMD but my current plan is to use some gaffer tape to protect the surrounding parts. I am thinking about using a few layers of tape cut into about 20mmx20mm square with another square cutout (slightly larger than the chip). So the chip is the only thing exposed by the tape. My theory is that it should provide a basic heat shield and also serve to keep the surrounding components in position if the heat shield fails! I've been re-watching some Dave Jones videos on the EEVBlog about desoldering and I think my heat gun is too brutal for this job - I have heat control but no fan speed control.
I'll have a look tomorrow to see if I can get a well-priced heat station but since I've been doing electronics for 15 years and haven't needed one, it would have to be pretty cheap to outweigh just buying a RAMPS to replace the Rambo.
The 'heat from below' idea sounds like a good idea also. Thanks Olaf!
John
I'll have a look tomorrow to see if I can get a well-priced heat station but since I've been doing electronics for 15 years and haven't needed one, it would have to be pretty cheap to outweigh just buying a RAMPS to replace the Rambo.
The 'heat from below' idea sounds like a good idea also. Thanks Olaf!
John