Search found 46 matches

by ossivirt
Aug 26 2019 11:07pm
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 806
Views: 96636

Re: kWeld -

john61ct wrote:
Aug 26 2019 5:29pm
A right size resistor to limit current?
Longer avg6 batteryleads and or smaller and worse connectors :mrgreen:. Not recomended mut if you keep them under max allowed lenghts if will loose some current..

Edit: meant 8 or higher awg..
by ossivirt
Aug 18 2019 10:55am
Forum: E-Bike Build Threads / Photos & Video
Topic: Noob EEB Enduro Build
Replies: 84
Views: 6427

Re: Noob EEB Enduro Build

If we are talking about the same thing, mine are on the outside of the swingarm.090E0963-D550-4531-A432-F673AE91E394.jpeg I have thouse like that too. I understood that he was talking about the little plates that come with motor and not thouse frame/swingarm parts. My mistake. And yes you can insta...
by ossivirt
Aug 17 2019 2:35pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Noob EEB Enduro Build
Replies: 84
Views: 6427

Re: Noob EEB Enduro Build

Can anyone please explain how to properly install a 5KW QS (205) on an EEB frame? It comes with two bolts and a rectangular piece on each side of the axle, but with both the rectangular pieces and the freewheel, it won’t fit. I don’t have a disk on yet either, I’m going to go get one today. I can m...
by ossivirt
Jul 22 2019 9:40am
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 806
Views: 96636

Re: kWeld - "Next level" DIY battery spot welder

Will someone please be kind and explain why something like kSupply exists? Why can't i just connect an appropriate/cheap power supply up to 8.1v to the kCap? However 2s 18650 wouldn't work->4.2x2=8.4v? Because cheap powersuplies dont have current limiting system and will destroy thenselves because ...
by ossivirt
Jul 20 2019 3:31am
Forum: E-Bike Technical
Topic: EEB parts and support info
Replies: 54
Views: 3778

Re: EEB parts and support info

I've done it! I recently purchased a 3D printer and have designed a front fender mount for the Mudhugger front fender on the USD-8 fork. In my excitement to put it on and test fit it I didn't take any pictures of it fresh off the printer :P . Was using a fast print setting and a thicker layer heigh...
by ossivirt
Jul 03 2019 7:30am
Forum: Battery Technology
Topic: 18650 spot welding -how to- ULTIMATE REPOSITORY
Replies: 759
Views: 154875

Re: 18650 spot welding -how to- ULTIMATE REPOSITORY

Would such a 12v battery be enough for spot welding with kweld or maltronics? https://www.biltema.se/en-se/car---mc/mc/mc-spare-parts/mc-batteries/mc-battery-smf-2000029838 It looks like very tiny cm battery so maybe it can weld very thin nickel but it will be very hard for the battery. It is also ...
by ossivirt
Jul 03 2019 6:54am
Forum: Battery Technology
Topic: 18650 spot welding -how to- ULTIMATE REPOSITORY
Replies: 759
Views: 154875

Re: 18650 spot welding -how to- ULTIMATE REPOSITORY

Would such a 12v battery be enough for spot welding with kweld or maltronics? https://www.biltema.se/en-se/car---mc/mc/mc-spare-parts/mc-batteries/mc-battery-smf-2000029838 It looks like very tiny cm battery so maybe it can weld very thin nickel but it will be very hard for the battery. It is also ...
by ossivirt
Jun 09 2019 7:34am
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 806
Views: 96636

Re: kWeld - "Next level" DIY battery spot welder

Okay how should I say.. First there's a touch with some sparkles after that there's a good weld with nickel plate melting, but at the same time liquid is coming out. :? *edit* also twice a small flame came out. That looks bad. Under 20J there should not be any burning or discoloration with 0.15mm n...
by ossivirt
Jun 08 2019 5:33pm
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 806
Views: 96636

Re: kWeld - "Next level" DIY battery spot welder

Is that normal that the K-Weld can burn through the Battery that Electrolyte comes out? Probably Not. So has this happened to Someone else? New firmware versions have anti arc features that reduce the risk of puncture but it's powerful and capable device so with too much energy it melts through. Th...
by ossivirt
Jun 08 2019 3:54pm
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 806
Views: 96636

Re: kWeld - "Next level" DIY battery spot welder

Quick update I received my K-Weld after few welds liquid came out. First i thought this was Water from previous use but turned out it came from the "Lanzhd" Cell. I had the setting on 9.5 Joule automatic However i reduced up to 2.5 Joule and worked better. I measured the Cell voltage and still seem...
by ossivirt
May 27 2019 11:32pm
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 806
Views: 96636

Re: kWeld - "Next level" DIY battery spot welder

I do have a sample of some .15 nickel plated copper ....and it is available but not cheap. But useless to me unless I can get good welds with it ...which is why I asked. I tried some at 25j with the stock electrodes and the welds were not good. I will have to try a higher setting or different elect...
by ossivirt
May 27 2019 11:03pm
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 806
Views: 96636

Re: kWeld - "Next level" DIY battery spot welder

Ossivirt ...so 50j and you got good welds for .1MM nickle plated copper? With the regular electrodes? I now have some .15mm nickel plated copper so it sounds like I would have to even use a higher setting ..... I used just bare copper. I tried plating it also but did not receive any benefits for we...
by ossivirt
May 26 2019 4:06pm
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 806
Views: 96636

Re: kWeld - "Next level" DIY battery spot welder

how good are the welds compared to sunkko ? sorry for the dumb question.. but im tired of my sukko which delivers self releasing welds. :flame: :shock: :evil: so im thinking about a k-Weld. How to best describe the difference :roll: I did multiple welds to 0.15mm nickel with sunko and prayed afterw...
by ossivirt
May 25 2019 3:16am
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 806
Views: 96636

Re: kWeld - "Next level" DIY battery spot welder

My mistake ....LOL ...I meant .15mm copper of course. So has anyone successfully welded .15mm copper with their Kweld? It should be possible. I have only 0.1 and 0.2mm. I made one battery with 0.1mm and it welds ok at 50j and my battery amps are 1500A. 0.2mm I have only tried for a few welds and I ...
by ossivirt
May 24 2019 1:01pm
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 806
Views: 96636

Re: kWeld - "Next level" DIY battery spot welder

My mistake ....LOL ...I meant .15mm copper of course. So has anyone successfully welded .15mm copper with their Kweld? It should be possible. I have only 0.1 and 0.2mm. I made one battery with 0.1mm and it welds ok at 50j and my battery amps are 1500A. 0.2mm I have only tried for a few welds and I ...
by ossivirt
May 14 2019 2:45pm
Forum: E-Bike Technical
Topic: EEB parts and support info
Replies: 54
Views: 3778

Re: EEB parts and support info

I have front mudhugger under the mud. It is there just with epoxy and time will tell if it stays in place. What Mudhugger front fender do you have? The standard length one or the long one? It looks like you have the additional extender as well. I have the longer rear fender along with the fender ex...
by ossivirt
May 14 2019 11:06am
Forum: E-Bike Technical
Topic: EEB parts and support info
Replies: 54
Views: 3778

Re: EEB parts and support info

I have front mudhugger under the mud. It is there just with epoxy and time will tell if it stays in place. Originaly I just put it on with hotglue but it flew out after first ride. It was horrible to glue there and try to get it straight and not to rub anywhere. Oh and it's nice when you are holding...
by ossivirt
Apr 16 2019 11:02pm
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 806
Views: 96636

Re: kWeld - "Next level" DIY battery spot welder

My biggest problem with welding copper with kweld is that it seems so hard to make good weld at negative end of the cell. Positive is easy and as strong as 0.1mm copper can be I think. Negative maybe needs some extra joules but I am little afraid of it because I already made one hole and smelled th...
by ossivirt
Apr 16 2019 1:17pm
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 806
Views: 96636

Re: kWeld - "Next level" DIY battery spot welder

My biggest problem with welding copper with kweld is that it seems so hard to make good weld at negative end of the cell. That seems to be related to the fact that kWeld uses DC current, although I have on my list to do further experiments to see if it isn't actually related only to arcing. I alrea...
by ossivirt
Apr 16 2019 9:32am
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 806
Views: 96636

Re: kWeld - "Next level" DIY battery spot welder

My biggest problem with welding copper with kweld is that it seems so hard to make good weld at negative end of the cell. Positive is easy and as strong as 0.1mm copper can be I think. Negative maybe needs some extra joules but I am little afraid of it because I already made one hole and smelled the...
by ossivirt
Apr 03 2019 11:03pm
Forum: Battery Technology
Topic: 18650 spot welding -how to- ULTIMATE REPOSITORY
Replies: 759
Views: 154875

Re: 18650 spot welding -how to- ULTIMATE REPOSITORY

Just as a note: The average Amperage/mm² = 4,459A/mm² pure nickel @ " optimal Temperature" [/b] 6,619A/mm² pure nickel @ " acceptable Temperature" [/b] 8,918/mm² pure nickel @ " poor/hot Temperature" [/b] How/where could I get a similar data (amps/mm2) for pure copper? Thanks I don't know how to ca...
by ossivirt
Feb 25 2019 8:06am
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 806
Views: 96636

Re: kWeld - "Next level" DIY battery spot welder

frnandu wrote:
Feb 25 2019 7:58am
ossivirt, did you use standard copper electrodes or other material?
Standard kweld electrodes.
by ossivirt
Feb 25 2019 4:15am
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 806
Views: 96636

Re: kWeld - "Next level" DIY battery spot welder

Ps: I hope this is not too much off the topic. I have not seen much this kind of test numbers around this welder. I find this very valuable! I have some ideas: - can you try slitting the strips, because this will help current guidance - your razor blade is probably thicker than a battery can would ...
by ossivirt
Feb 22 2019 2:38pm
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 806
Views: 96636

Re: kWeld - "Next level" DIY battery spot welder

This is very usefull information. Where did you get nickel plated copper? And what are you using for power? I just got my copper from ebay and plated it myself. I have not really find any sellers online that sells plated copper :roll: https://www.instructables.com/id/High-Quality-and-safe-Nickel-Pl...
by ossivirt
Feb 22 2019 12:43pm
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 806
Views: 96636

Re: kWeld - "Next level" DIY battery spot welder

I tested some nickel plated copper with the kweld. Difference is not huge compared to bare copper but at 0.1mm I noticed that it made it just slightly stiffer when I ripped the strips off. Copper is so soft that when it stars to tear it just keeps going and my plating reduced this effect a little bi...