Tips for reduce shaking ?

[corrize]

Hello, I have a little problem. When I use hot air, I'm shaking a little with tweezers, and I'm scared to push a little qfn for check if it floating. So sometime, I prefer to not try and « hope » the solder is done.

I use the blue tweezers mechanic AAC-14 and a I put just my fist on the table.

Do you have tips to reduce shaking pls ? Maybe shorter tweezers, or something for wedge the fist or arm ?

(I add : no coffee, no alcohol and I don't smoke).

[stj]

Re: Tips for reduce shaking ?

no coffee, no alcohol

thats half the problem

but seriously, instead of poking, spin the hot air around the package to make it wiggle on the balls

[harp]

Re: Tips for reduce shaking ?

This is ergonomic in question, you shoud try to put some stiropore (polystirene expanded) plates at fist rest. Try very range of hight from 5mm to 35mm, and go with confortable one, or on some other support.
Second, do apply some tension at worked arm, like finger who slightly push and amortizate shaking, of corse the hot air is tied to rope and hanging...
Also, position of tip is important, has you try a bent tip, because it change position how you handle the tool...

[Green Probe]

I agree that ergonomics helps a load. I found it a lot easier to use the hot air in my secondary hand, and the tweezers in my primary hand. It took a second to get used to, but having my primary hand do the fine work is worth it. I find it easier holding the tweezers with the base of them resting on top of my hand, like holding a pencil or chopsticks; instead of the base of the tweezers being in my palm like holding tongs. Lowering my chair helps too. Watchmaker's workbenches are armpit height, so there has to be some advantage to it for fine work. They also commonly have arm rests, which you may find useful. These might be obvious things, but they did help me when I tried them.

[stj]

have something to rest your wrist on while holding the tweezers