litespeed
100 kW
Very nice.
Tom
Tom
Qulbix Q76R 18650 battery build
- Thread starter Quokka
- Start date
Quokka
1 kW
Nope, not once. I gave the electrode tips a clean after every plate. Just a quick hit with some sandpaper to keep them clean. I guess it also depends on the welder. I have another welder that sticks like mad, but i think its just too much power running through the weldredilast said:Wow thats a monster of a pack!
Well done with the neat build! Did you get much electrode sticking when welding the pure nickel 0.2mm sheet?
Samd
10 MW
Awesome planning and great execution.
Quokka said:Nope, not once. I gave the electrode tips a clean after every plate. Just a quick hit with some sandpaper to keep them clean. I guess it also depends on the welder. I have another welder that sticks like mad, but i think its just too much power running through the weldredilast said:Wow thats a monster of a pack!
Well done with the neat build! Did you get much electrode sticking when welding the pure nickel 0.2mm sheet?
Interesting. I'm using a professional Sunstone engineering welder and it sticks a lot with normal copper electrodes. With the special electrodes (I think they have aluminum oxide in the copper) they stick less but still its not good. For me i find if I move the electrodes immediately after firing the weld I don't get much sticking. What kind of electrodes did you use? Do you see any copper left behind on any of your spot welds?
Quokka
1 kW
redilast said:Quokka said:Nope, not once. I gave the electrode tips a clean after every plate. Just a quick hit with some sandpaper to keep them clean. I guess it also depends on the welder. I have another welder that sticks like mad, but i think its just too much power running through the weldredilast said:Wow thats a monster of a pack!
Well done with the neat build! Did you get much electrode sticking when welding the pure nickel 0.2mm sheet?
Interesting. I'm using a professional Sunstone engineering welder and it sticks a lot with normal copper electrodes. With the special electrodes (I think they have aluminum oxide in the copper) they stick less but still its not good. For me i find if I move the electrodes immediately after firing the weld I don't get much sticking. What kind of electrodes did you use? Do you see any copper left behind on any of your spot welds?
I had no sticking issues. The tips i used were off my dn-5 welder. They are copper. I have made some other DIY tips out of 6mm 99%pure copper rod and they seem fine as well, althought i only tested those with around 20 welds
Ohbse
10 kW
Awesome pack build, very impressive! Mind sharing your source for the nickel sheet?
Quokka
1 kW
Aliexpress. Found it by searching nickel sheet. The store name is "Sophias's wholesale titanium, nickel and tantalum. It passed the obligatory salt water/ filed test to check it was nickel coated steelOhbse said:
Mammalian04
100 kW
Quokka said:
Does this price sound right?
Weight :1.43kg for 4 meters of this nickel sheet (0.2 x 200mm x 4000mm)
$158.30 + $67 shipping to U.S.
Quokka
1 kW
Thats a great price. I paid 138.88 for 1.5m x0.2m
Mammalian04
100 kW
Thanks Quokka.
skeetab5780
1 MW
Great battery build! Everybody likes a tight fit! I need to seriously invest in a DIY spot welder setup to someday be able to do something similar... Thanks for sharing the build.
Tats
1 kW
I can confirm quokkas 20s pack with Max-e and qs is a lot quicker than my 36v 25a peak bbs01 assisted 48 yr old legs 
I'm knackered....nice bike mate-looks even better in the flesh
I'm knackered....nice bike mate-looks even better in the flesh
Quokka
1 kW
Would it make you feel better if i told you i was only running 40 amps past you lol- with a half charged battery. In boost mode it pumps out 120 8) and is pretty frieghtening to be on. I am getting a range of 120km at 40-50km average
Wheazel
10 kW
:lol:
Tats said:I can confirm quokkas 20s pack with Max-e and qs is a lot quicker than my 36v 25a peak bbs01 assisted 48 yr old legs
Tats
1 kW
Nope.
Seriously tho it looks beautiful and is really stealthy quiet too. When you passed me I didn't hear you at all.
Seriously tho it looks beautiful and is really stealthy quiet too. When you passed me I didn't hear you at all.
Compoundbike
100 W
Cool stuff with the battery.. i wish i knew this is earlier. My range with 8Parallel is only 20km. 
But im rebuilding the battery.
But im rebuilding the battery.
