DIY Arduino Battery Spot Welder et 48 v?

[want to build]

So, OP, genuine question here.

Why have you not ordered this yet?

https://www.keenlab.de/index.php/portfolio-item/kweld/

hum,, keenlab is 159,00 – €167,00 .

do you know how long it takes to assemble get it going including the firmwire or software to upload in it?

---
the arduino is €75,55 wich is half the price and correct me if im wrong but it seems easier to assemble does'not it?

 

[john61ct]

Please link to the product / project you are talking about.

And cite what evidence you have that it works well.

Personally I think better to do without, save your pennies over time until you can buy the right unit.

Spending less money on something that does not work is just throwing it away.

 

[want to build]

the arduino is here https://malectrics.eu/product/diy-arduino-battery-spot-welder-prebuilt-kit-v3/

about if it works well , well that is kind of my question....

I am talking about it because i read it was recommended in some post like this one .

never tried it though https://endless-sphere.com/forums/viewtopic.php?t=98830

 

[john61ct]

Yes seems OK for a hobbyist but won't do as heavy gauge strips

 

[want to build]

hi sorry im only second language in english
what do you mean by your comment wont do as heavy gauge strips?

 

[serious_sam]

IMO, the Kweld is just a better welder. Firstly, it is able to measure energy input per weld (rather than just pulse duration). In theory, this should produce more consistent welds, and allow you to set it up more consistently. Also, the development and usage has been well documented here (44 page thread), so you get good support and lots of examples. If I was going to buy a welder, this is what I would buy. https://endless-sphere.com/forums/viewtopic.php?t=89039

The Malectric welder looks fine. It doesn't have the same large user base here on ES forums, so it is a lesser known quantity. In theory it can probably handle about ~75% of the current that the kWeld can handle, so it won't do quite as heavy strips. The website says it can do 0.25mm nickel strip with an 800CCA battery, which is probably as thick as you'll ever need anyway.

So that's the comparison:
kWeld: more expensive, easier/more consistent to get set up, slightly more powerful, better support.
Malectric: cheaper, probably does the job fine, better $/weld value.

 

[want to build]

maybe your write serious sam.

40 pages is a very lot of reading hahaha. where is this document ? is it a pdf download from the seller or a document made by ES?
does it tell all i have to know or i ll have to read all .... the es content on it?
thx for the links :wink:

 

[serious_sam]

That's the link I posted. https://endless-sphere.com/forums/viewtopic.php?t=89039
You don't have to read it. The manual that comes with the welder should be enough.

 

[john61ct]

hi sorry im only second language in english
what do you mean by your comment wont do as heavy gauge strips?

Just read the threads, it's all there!

A thin strip like .15 is easy .2 is harder. Won't do 0.3 at all, need kweld for that.

 

[want to build]

ho i see thx for now
have a good day

 

[want to build]

ho i see thx for now
have a good day

 

[want to build]

HI
I have been reading lots of pages till #18 of the 45 page on kwell spot welder.
to be honest there is a lot of technicality that i didn t understand.

Is it really worth to spend all those a hours to learn the thinkness functioning and the metal types functioning with the spot welder to achieve high current pass without heat issue (60amp minimum) is there a smaller document that will say how to use and the type of nickel copper and stuff?

Already english being difficult for me , i'm losing hope when i see how slow i read and that i might not find my hidden info in that technical text.

can some one guide me or maybe the text really summarizes at a certain page.

 

[serious_sam]

It's not difficult.
1. Buy a welder and battery. K-weld or Malectrc. Whatever.
2. Read the manual that comes with the welder.
3. Practice welding.
4. Practice welding.
5. Practice welding.
6. Then ask specific questions if you still have problems.
Easy.

 

[want to build]

hahaha
yes , when you have all the parts maybe it is easy to jump in to practice but before this i have to buy the stuff and since i dont want to buy something that will not serve my project, that is why i ask questions on materials.

one of the big questions i have is
what material ( nickel pure copper , combination ) what thickness which wideness if i want to achieve a 60 amp current without to much heat . so like how to calculate that if i have 3 links between each 4cell parallel groups.
Also i see that i could with this case http://www.reention.com/product/detail/95

use either a prefabricated and tailored nickel plate sheet that would fit reention case from maybe hailong? or use this kind also prefabricated but not tailored their is also the stripes by strips option. Do you see all the info i need to do an informed choice? hahaha
can you help me with that?

https://www.aliexpress.com/item/32855575538.html?spm=a2g0o.productlist.0.0.4ea16025P2qVmL&algo_pvid=15aac95d-6bf0-4ed0-869d-c0d70b7194b4&algo_expid=15aac95d-6bf0-4ed0-869d-c0d70b7194b4-42&btsid=0ab6fa8115897375850943161e8e57&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_

 

[john61ct]

what does reention mean?

 

[serious_sam]

can you help me with that?

You should just buy a ready made battery.

I'm out.

 

[john61ct]

ah sorry see it's a company name