Well, I'm finishing 13 units and 12 of them are sold, so if you want to get it in this batch, you should probably order now. I'm not sure when is next batch going to be finished, because I have to update my stock. I will restock soon, but I need time to actually assemble welders, and it's going slower now while I'm sick.
JP spot welder
- Thread starter riba2233
- Start date
Thanks. I think I'll wait. Got too many projects going currently and I won't be ready to start using the welder for at least a couple of months anyway.riba2233 said:
Cheers
Allex
100 MW
This is my current setup. Old 3s4p (11,1V 20Ah)Nanos:
http://www.hobbyking.com/hobbyking/store/__37499__Turnigy_nano_tech_5000mah_10S_25_50C_Lipo_Pack_UK_Warehouse_.html?strSearch=10s%20nano%205000
At first I maked it 11,1V65Ah and the welder blew a big hole in 0,3nickel at 3ms and after a few more a few fets was blown. Jakov was kind enough to replace them.
Anyway I weld 80cells today while my lipos was charged to nominal voltage and the voltage after this is almost the same.
0.15 works good and 0.2 as well at 3ms and 10ms respectively.
What I do notice is that weld from the positive electrode is weaker. I have yet to succeed welding with 0.3 - the negative weld is strong at 13-15ms(when I rip the nickel off it leaves a hole in the cell) but the spot from the positive is very easy to remove - it does not stick. I tried to have more pressure on the negative electrode but that did not seem to help. Any tips on how to improve this? Jakov suggested swapping electrodes so I have yet to try this.
Anyway I am very happy with this little thing, and the service from Jakov was great, I even bought another one to have as spare!
Another thing, is it better to have a sharper tip or better with more area?
http://www.hobbyking.com/hobbyking/store/__37499__Turnigy_nano_tech_5000mah_10S_25_50C_Lipo_Pack_UK_Warehouse_.html?strSearch=10s%20nano%205000
At first I maked it 11,1V65Ah and the welder blew a big hole in 0,3nickel at 3ms and after a few more a few fets was blown. Jakov was kind enough to replace them.
Anyway I weld 80cells today while my lipos was charged to nominal voltage and the voltage after this is almost the same.
0.15 works good and 0.2 as well at 3ms and 10ms respectively.
What I do notice is that weld from the positive electrode is weaker. I have yet to succeed welding with 0.3 - the negative weld is strong at 13-15ms(when I rip the nickel off it leaves a hole in the cell) but the spot from the positive is very easy to remove - it does not stick. I tried to have more pressure on the negative electrode but that did not seem to help. Any tips on how to improve this? Jakov suggested swapping electrodes so I have yet to try this.
Anyway I am very happy with this little thing, and the service from Jakov was great, I even bought another one to have as spare!
Another thing, is it better to have a sharper tip or better with more area?
Allex
100 MW
What I notised is that after while, when the tip got more flat and even, the welds are better looking and also creates bigger contact area I also need to encrease the pulse time.
Sorry for not getting back to you earlier, but your spot welder worked great! I was using 0.1mm nickel, and 5ms was too much with the battery I have (715 cranking amps) - the probes were getting stuck to the nickel. 3ms worked better. I've gotten very consistent spot welds, and not a single bad weld after a couple of days of building battery packs. Thanks for a great product!
okashira
10 kW
One piece electrodes need seperatly actuated springs / pistons.riba2233 said:
Allex
100 MW
For us that welds much, have you though about some kind of system where you can easily change the tips?
Allex
100 MW
Yes please hook me up with one set( cabling/grips only) 
Oh and softer cables would be nice, I think I will take it.
Oh and softer cables would be nice, I think I will take it.
chucho
1 kW
Allex said:Yes please hook me up with one set( cabling/grips only)
Oh and softer cables would be nice, I think I will take it.
+1 :wink:
Allex
100 MW
My final wish would be thicker tips for less flex 'n bend and also longer tips so the handles are not in the way when you need to make tight welds like we do
Lurkin
100 kW
I'll probably want one of these down the track.
I'll stay tuned for updates re complete stock etc.
Would be interested in lowest price/slowest/untracked freight as I'm not in a rush.
Well done btw, excellent idea.
I'll stay tuned for updates re complete stock etc.
Would be interested in lowest price/slowest/untracked freight as I'm not in a rush.
Well done btw, excellent idea.
Thanks! I will update the stock info in first post.
Cheaper shipping options for Australia are:
- standard (ground) letter without tracking - 19$
- priority (air) letter without tracking - 21$
Standard option which I usually use is priority (air) recommended tracked and costs 25$. Both air options should in theory have the same speed.
I will update the stock info in first post.Cheaper shipping options for Australia are:
- standard (ground) letter without tracking - 19$
- priority (air) letter without tracking - 21$
Standard option which I usually use is priority (air) recommended tracked and costs 25$. Both air options should in theory have the same speed.
Good to see some cheaper shipping options. The big appeal of this welder is it's low cost (and quality) so anything you can do to keep costs down is welcome.
Will you update us when your new stock/new welders are ready?
Cheers
The big appeal of this welder is it's low cost (and quality) so anything you can do to keep costs down is welcome.Will you update us when your new stock/new welders are ready?
Cheers
I did receive my welder last week and managed to do some test welds on some old batteries and nickel strip.
IT WORKS GREAT !!
Now i'm waiting for my nickel strip to arrive so i can do bulk welding (1080pcs of 18650)
Would it be possible to use some capacitors like the Zeva spotwelder http://www.zeva.com.au/Projects/SpotWelderV2/ uses instead of the 12v battery ?
I'll post more info soon when i've done a few hundred welds.
IT WORKS GREAT !!
Now i'm waiting for my nickel strip to arrive so i can do bulk welding (1080pcs of 18650)
Would it be possible to use some capacitors like the Zeva spotwelder http://www.zeva.com.au/Projects/SpotWelderV2/ uses instead of the 12v battery ?
I'll post more info soon when i've done a few hundred welds.
Thanks, I'm really glad that it works as it should
Now, I'm not really sure about capacitor, it would have to be able to supply same amount of current as battery, but not more, and they are really expensive if they are high-quality, you don't want fake ones. Also it's cheaper to use/buy car battery.
Personally I wouldn't bother, results can vary largely.
Now, I'm not really sure about capacitor, it would have to be able to supply same amount of current as battery, but not more, and they are really expensive if they are high-quality, you don't want fake ones. Also it's cheaper to use/buy car battery.
Personally I wouldn't bother, results can vary largely.
ohzee
100 kW
I am about 90% done building my 20s12p battery with the tesla cells. This welder has worked extremely well.
I am using .5 and .8 pure nickel with no issues what so ever. I have the the welder right around 5ms which has seemed to work well for me.
Unfortunately the way my phasor is i can not just make 1 battery. I need to break it up into 2 or 3 parts to maximize what I can fit.
When I get out to my garage Ill grab some pics to show the welds of the last 8s pack.
Thanks for a great product riba and excellent follow up. Hope you beat whatever cold or sickness you had going on.
I am using .5 and .8 pure nickel with no issues what so ever. I have the the welder right around 5ms which has seemed to work well for me.
Unfortunately the way my phasor is i can not just make 1 battery. I need to break it up into 2 or 3 parts to maximize what I can fit.
When I get out to my garage Ill grab some pics to show the welds of the last 8s pack.
Thanks for a great product riba and excellent follow up. Hope you beat whatever cold or sickness you had going on.
