People ask me what welder i use on my packs. This is her.
It’s a Sunkko 788H I got from a dude in Chicago over ebay and its been the shit for about a year now. I also own a 709A but i feel like the 788H works better on the heavier nickels.
So far i’ve been able to do both 0.15mm as well as 0.2mm in pure nickel when i crank it way up.
Anyone else building packs with one of these and what are your thoughts? Got any mods to share?
I run a hakko carbon filter above my spot welder to extract those nasty fumes. I also use a hood extractor above the workbench/welding station. Something left over from my days tig welding stainless
That’s happening this year. I’m designing an exhaust vent system that will basically blow everything through the roof. Vents over the welding and soldering spaces as well as the building stations, all ducted into the attic and ejected outside through a few filters with room air intake happening at close to floor level.
other things on the list for 2018 include a steel deck press, a proper cage with dust management for Shirley (my xcarve), air conditioning inside the shop, reframing the attic over the shop for storage and better electrical, and a raised floor with removable tiles for cable management and air return. and a Galaga machine.
@longhairedboy I’m in the UK so got mine from https://malectrics.eu . Fast shipping as well. I never used the pedal, I found that the auto welding function works great: touch the copper terminals and 2 seconds later it welds.
I’m using it with a 440cca car battery but even high discharge lipos work great for .15
I use the 788 too, no complaints other than having to wait for cool down if doing a lot of thick nickel
I find keeping the tips clean is KEY to good, consistent welds
Im running a 788h because it was the cheapest I could find at the time… no complaints here. Just have to run it on a 20A dedicated circuit or else it sometimes will flip the breaker.