IR bottom heaters are usually not strong enough for reballing. They're for boards that are hard to solder, because there's a lot of copper or a heatsink for example.
The bottom heater preheats the whole board, not to soldering temperatures but enough to make soldering a lot easier.
Hmm, it seems to me most of those bubbles will happen not where you need them. Maybe if you throw in the base first and the acid later (or the other way around)
Soda and vinegar is an odd combination. Soda is a base, making water alkali. Vinegar is an acid, making water acidic. Together, they make water neutral again, with a lot of pretty bubbles.
Either one can work really well depending on the stuff you need to get rid of. But adding one to the other just weakens it.
The issue isn't so much that I'm cutting myself, but that I end up with multiple very small wounds, roughly the size of a hair/hairsack. Like my shave is just a little too close?
I have an adjustable handle, Merkur 50C I believe. I set it to the least aggressive setting, and am trying all different brands of blades, but so far there's little difference.
I have a block of aluin, which I think is the same thing? It helps, but it isn't magic. I'm not applying pressure, but still I get many very small wounds.
IR bottom heaters are usually not strong enough for reballing. They're for boards that are hard to solder, because there's a lot of copper or a heatsink for example.
The bottom heater preheats the whole board, not to soldering temperatures but enough to make soldering a lot easier.