Search found 11 matches

by frnandu
Sep 17 2019 3:36am
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 865
Views: 100810

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

Can you figure out what might be wrong? The voltage is absolutely okay, and if the welder makes consistent welds as well then I suspect an entirely different problem. Do you have the firmware updater so that I can send you two different firmware images for testing? I'm varying the 'short' detection...
by frnandu
Sep 10 2019 4:09am
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 865
Views: 100810

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

Let me just add that this is something that since the very begining we (me and another guy you bought the kweld together) have been having, check the very first time in January we posted here about this problem: https://endless-sphere.com/forums/viewtopic.php?f=14&t=89039&start=525#p1440919 So, even...
by frnandu
Sep 10 2019 4:05am
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 865
Views: 100810

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

Is this "REMOVE SHORT" error cause only possible if this diode is somehow damaged (even if it looks ok)? If so, can it be easily replaced with an ordinary soldering iron? I need to order from you new electrodes, so if indeed I should replace this diode for stopping the error, maybe you can send me ...
by frnandu
Aug 13 2019 6:43am
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 865
Views: 100810

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

In that last pic it looks like someone touched the brass with one of the electrodes. :? If you get it fixed and still plan on lending it to people then I recommend getting a case for the welder. I'm not lending it to people, we just bought it together 3 people and shared the cost, since we don't ne...
by frnandu
Aug 13 2019 5:04am
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 865
Views: 100810

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

- you actually removed and replaced the fuse while the system was powered from the battery, right? Yes, while having power from the battery I slightly disconnected the electrode side of the fuse and then connected it again, and the error went way. - are you sure that you have never accidentally tou...
by frnandu
Aug 12 2019 2:46pm
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 865
Views: 100810

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

If I disconnect the fuse (from the electrode side) and connect it again it stops giving "REMOVE SHORT" and it welds without problems. Any other ideas? Please do not trigger welding pulses without a replacement in place, this diode is protecting the switching MOSFETs from inductive kickback energy t...
by frnandu
Aug 11 2019 4:42am
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 865
Views: 100810

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

If I disconnect the fuse (from the electrode side) and connect it again it stops giving "REMOVE SHORT" and it welds without problems.
Any other ideas?
by frnandu
Aug 10 2019 1:50pm
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 865
Views: 100810

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

I'm getting "REMOVE SHORT" at start, any idea what may cause this? (the electrodes are not touching)...
Been working fine for few months, and now this....
by frnandu
Feb 25 2019 7:58am
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 865
Views: 100810

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

ossivirt, did you use standard copper electrodes or other material?
by frnandu
Feb 22 2019 2:24pm
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 865
Views: 100810

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?