MiniSpotA spot welder

Batteries, Chargers, and Battery Management Systems.
User avatar
rojitor   100 kW

100 kW
Posts: 1018
Joined: Mar 23 2011 6:39pm
Location: vigo spain

MiniSpotA spot welder

Post by rojitor » Feb 03 2019 5:05am

This new thread has been split off from the "Boss spot welder" thread, found here: https://endless-sphere.com/forums/viewt ... 14&t=89076

https://www.youtube.com/watch?v=Riw4qq0_dLc


It seems that Lee has improved the dremel size spotwelder.
This is the MiniSpotA. Right now he is selling It only at Korea but he will ship worldwide soon.
A 18650 cell aside for size referencie
Image new review is on the way.

Even though this welder is new the creator has been working on it for some time. He did other prototypes.
1.jpg
1.jpg (60.51 KiB) Viewed 2061 times
2.jpg
2.jpg (67.64 KiB) Viewed 2061 times
3.jpg
3.jpg (32.9 KiB) Viewed 2061 times
4.jpg
4.jpg (31.08 KiB) Viewed 2061 times
5.jpg
5.jpg (37.58 KiB) Viewed 2061 times
This is the 2015 prototype in action:



And this is the current version:
6.jpeg
6.jpeg (21.11 KiB) Viewed 2061 times
7.jpeg
7.jpeg (24.79 KiB) Viewed 2061 times
8.jpeg
8.jpeg (21.19 KiB) Viewed 2061 times
9.jpeg
9.jpeg (20.94 KiB) Viewed 2061 times
20181222_090633.jpg
20181222_090633.jpg (54 KiB) Viewed 2061 times
DISCLAIMER:
I am not affiliated, associated, authorized, endorsed by, or in any way officially connected with Aulakiria. THIS IS NOT A SALES THREAD. And i have no profit nor gain with this, i just think it's a nice thing and i am sharing it with you. If you are interested on buying one just mail him saying you want one here aulakiria@naver.com that's his paypal account as well. If you mail him be brief and use only perfect academic understandable english. Something google translator can deal with.
The prices are :
MinispotA 60$ usd
Paypal fees 3.5%, Usd-krw Exchange fees 3%…It is double charged so please consider the option send money to family/friend

shipping method

Global RR (KOREA post registered airmail) : $15 (20~40 business days)

Global EMS fee : most $27 (10~15 business days)

U.K (Great British) : $33

Italy : $38


https://m.blog.naver.com/aulakiria/220992039512
Last edited by rojitor on May 31 2019 4:22am, edited 7 times in total.

User avatar
rojitor   100 kW

100 kW
Posts: 1018
Joined: Mar 23 2011 6:39pm
Location: vigo spain

Re: BOSS LEVEL CUSTOM SPOT WELDER

Post by rojitor » Feb 17 2019 8:27am

I will.... Stay tuned

User avatar
tomjasz   10 GW

10 GW
Posts: 4100
Joined: Mar 29 2014 1:45pm
Location: Out riding, MN USA
Contact:

Re: BOSS LEVEL CUSTOM SPOT WELDER

Post by tomjasz » Feb 17 2019 1:56pm

rojitor wrote:
Feb 17 2019 8:27am
I will.... Stay tuned
I'd like to try the MiniSpotA ! Looking forward to availability.
Thanks Justin_le we're here thanks to you. All the best to the mods for their tireless work keeping it on an even keel.

User avatar
rojitor   100 kW

100 kW
Posts: 1018
Joined: Mar 23 2011 6:39pm
Location: vigo spain

Re: BOSS LEVEL CUSTOM SPOT WELDER

Post by rojitor » Feb 17 2019 2:09pm

It is not. Lee is selling them only at Korea. If he sees some interest then will ship It worldwide. He has sent me one, will arrive this week. I'll make a review as soon as this damn flu goes away.

hemo   100 W

100 W
Posts: 160
Joined: Mar 30 2016 5:13pm
Location: England, GB ( UK).

Re: BOSS LEVEL CUSTOM SPOT WELDER

Post by hemo » Feb 18 2019 4:28am

On the U.K forum there are a few I believe who would buy one if it became available and if price was attractive and not just U.K residents but some members in the E.U.


Looking forward to your review, get well soon ( flu in Spain who would have guessed ).
Looks like we over hear may be having a mini heatwave end of this week. temperatures expected to be in to the high teens possibly territory we are not used to in winter for February.

User avatar
tomjasz   10 GW

10 GW
Posts: 4100
Joined: Mar 29 2014 1:45pm
Location: Out riding, MN USA
Contact:

Re: BOSS LEVEL CUSTOM SPOT WELDER

Post by tomjasz » Feb 18 2019 3:20pm

rojitor wrote:
Feb 17 2019 2:09pm
It is not. Lee is selling them only at Korea. If he sees some interest then will ship It worldwide. He has sent me one, will arrive this week. I'll make a review as soon as this damn flu goes away.
Sorry to read, the flu is awful. Looking forward. No hurry, I have others.
Thanks Justin_le we're here thanks to you. All the best to the mods for their tireless work keeping it on an even keel.

User avatar
rojitor   100 kW

100 kW
Posts: 1018
Joined: Mar 23 2011 6:39pm
Location: vigo spain

Re: BOSS LEVEL CUSTOM SPOT WELDER

Post by rojitor » Feb 21 2019 7:17am

Ok fellas. I have just got the A!!
Let me introduce the MinispotA, probably the smallest spot welder out there:
IMG_20190221_122257.jpg
IMG_20190221_122330.jpg
IMG_20190221_122450.jpg
IMG_20190221_122509.jpg
IMG_20190221_122528.jpg
IMG_20190221_122700.jpg
IMG_20190221_122732.jpg
IMG_20190221_123053.jpg

User avatar
rojitor   100 kW

100 kW
Posts: 1018
Joined: Mar 23 2011 6:39pm
Location: vigo spain

Re: BOSS LEVEL CUSTOM SPOT WELDER

Post by rojitor » Feb 21 2019 4:33pm

Ok review done 8)


wheeliepete   1 mW

1 mW
Posts: 14
Joined: Jul 11 2016 10:04am
Location: Devon/Dorset UK

Re: BOSS LEVEL CUSTOM SPOT WELDER

Post by wheeliepete » Feb 22 2019 9:23am

What a fantastic bit of kit rojitor, looks like a great replacement for my pre-historic Sunkko brick-hope they become available to the UK sometime in the near future. :D

hemo   100 W

100 W
Posts: 160
Joined: Mar 30 2016 5:13pm
Location: England, GB ( UK).

Re: BOSS LEVEL CUSTOM SPOT WELDER

Post by hemo » Feb 22 2019 6:28pm

Brilliant, Aulakiria is a clever chap.
Now all we need is for him too sell us one.

User avatar
rojitor   100 kW

100 kW
Posts: 1018
Joined: Mar 23 2011 6:39pm
Location: vigo spain

Re: BOSS LEVEL CUSTOM SPOT WELDER

Post by rojitor » Feb 22 2019 6:51pm

It seems he will sell It. Many guys showed interest.

User avatar
tomjasz   10 GW

10 GW
Posts: 4100
Joined: Mar 29 2014 1:45pm
Location: Out riding, MN USA
Contact:

Re: MiniSpotA spot welder

Post by tomjasz » Feb 23 2019 12:44am

Hsome fellas need multiple welders. I can have two or more for the price if a single junk Sunnko!
Thanks Justin_le we're here thanks to you. All the best to the mods for their tireless work keeping it on an even keel.

User avatar
rojitor   100 kW

100 kW
Posts: 1018
Joined: Mar 23 2011 6:39pm
Location: vigo spain

Re: MiniSpotA spot welder

Post by rojitor » Feb 23 2019 9:13am

True. He is selling the MiniSpotA for 60$ USD. You still need a lipo and a charger. If you own them already it's dirt cheap. Even if you don't ....It will be cheaper than most Big ac spot welders.

User avatar
rojitor   100 kW

100 kW
Posts: 1018
Joined: Mar 23 2011 6:39pm
Location: vigo spain

Re: MiniSpotA spot welder

Post by rojitor » Feb 23 2019 10:43am

I've just tested copper. The results were not expected at all.



Testing 0.05 copper on steel. It worked surprisingly well! The boss welder can't do 0.05 properly because It breaks the strip.
I still need to figure out how to cool down the welder but it's definitely 0.05 copper capable


Even though the results look amazing the settings were absurdly high. DO NOT ATTEMPT THIS. At least not out of the box. The heat rises so fast that the death of the machine is almost certain.
Copper welding needs multi-stage to make decent welds at reasonable settings. Since the MiniSpotA lacks multi-stage the settings for 0.1 are astronomical. Even if i success cooling it down it's not 0.1 capable.

Image

0.05 results. If i manage somehow to tame the heat the machine is 0.05 copper capable, surpassing the Boss welder on that task.

Image

0.1 results. Just tested for science.

User avatar
tomjasz   10 GW

10 GW
Posts: 4100
Joined: Mar 29 2014 1:45pm
Location: Out riding, MN USA
Contact:

Re: MiniSpotA spot welder

Post by tomjasz » Feb 23 2019 1:07pm

rojitor wrote:
Feb 23 2019 9:13am
True. He is selling the MiniSpotA for 60$ USD. You still need a lipo and a charger. If you own them already it's dirt cheap. Even if you don't ....It will be cheaper than most Big ac spot welders.
Ready to pay...
Thanks Justin_le we're here thanks to you. All the best to the mods for their tireless work keeping it on an even keel.

User avatar
rojitor   100 kW

100 kW
Posts: 1018
Joined: Mar 23 2011 6:39pm
Location: vigo spain

Re: MiniSpotA spot welder

Post by rojitor » Feb 23 2019 1:39pm

Just mail him

User avatar
rojitor   100 kW

100 kW
Posts: 1018
Joined: Mar 23 2011 6:39pm
Location: vigo spain

Re: MiniSpotA spot welder

Post by rojitor » Feb 24 2019 11:19am

Here you are. The A how to:

SlowCo   100 kW

100 kW
Posts: 1192
Joined: Jan 05 2015 5:43pm
Location: The Netherlands

Re: MiniSpotA spot welder

Post by SlowCo » Feb 24 2019 11:53am

Very impressive little welder. :thumb:

NIPSEN   100 mW

100 mW
Posts: 38
Joined: Feb 26 2019 5:14pm

Re: MiniSpotA spot welder

Post by NIPSEN » Mar 04 2019 2:38pm

I'll buy one ASAP ! :bigthumb:

999zip999   100 GW

100 GW
Posts: 8927
Joined: Jan 10 2010 1:40pm
Location: Dana Point So. Cal

Re: MiniSpotA spot welder

Post by 999zip999 » Mar 04 2019 9:40pm

How big a battery can you make ( weldes ) before over heating and or welds with what nickel strips ? 50 welds or 100 hundred ?

User avatar
rojitor   100 kW

100 kW
Posts: 1018
Joined: Mar 23 2011 6:39pm
Location: vigo spain

Re: MiniSpotA spot welder

Post by rojitor » Mar 05 2019 9:11am

Mine got hot after 30 welds in a row using 0.20 pure nickel
I didn't notice a quick heat rise using 0.15
I think you can make any pack using 0.15
I am working on a cooling mod. Let's see...
Out of the box i recommend It for 0.15mm only. I have posted a tiny modification below to use it with 0.2mm
Last edited by rojitor on Mar 09 2019 7:16am, edited 1 time in total.

BenjAZ   100 mW

100 mW
Posts: 49
Joined: Sep 04 2017 4:21am

Re: MiniSpotA spot welder

Post by BenjAZ » Mar 06 2019 8:17am

:thumb:

NIPSEN   100 mW

100 mW
Posts: 38
Joined: Feb 26 2019 5:14pm

Re: MiniSpotA spot welder

Post by NIPSEN » Mar 06 2019 1:56pm

Helo guys,

I bought Aulakiria a MiniSpotA, he sent it to me very quickly, and informed me very well about the battery to use, etc.
I am very happy with my purchase, many thanks to him and Mojitor for introducing us to people of this quality.
I will present my realization as soon as possible.
:D :bigthumb:

User avatar
rojitor   100 kW

100 kW
Posts: 1018
Joined: Mar 23 2011 6:39pm
Location: vigo spain

Re: MiniSpotA spot welder

Post by rojitor » Mar 06 2019 4:05pm

Cool. Share your experience with us.

User avatar
rojitor   100 kW

100 kW
Posts: 1018
Joined: Mar 23 2011 6:39pm
Location: vigo spain

Re: MiniSpotA spot welder

Post by rojitor » Mar 09 2019 6:59am

I have been testing a way to cool the device keeping the size and price.
The fets are stuck to the aluminium plate with some thermal silicone paste. Those things require to cure to transfer the heat properly so it will work better after a few hundred welds.

the heat is very present there
heat.jpg
heat.jpg (28.73 KiB) Viewed 1948 times
for the spot where you place the finger just a piece of wood (icecream stick) and some shrink will do. No more heat.
1.jpg
2.jpg
3.jpg
4.jpg
For the plate i got a copper ram heatsink. They are inexpensive and available at any computer store. Even online can be bought for very few bucks. https://es.aliexpress.com/item/Disipado ... 63c02q69LN
5.jpg

the video is quite long and boring so in short:
I have tested 0.2mm pure nickel at 8ms 1sec delay. I did 50 welds in a row. Actually no one welds that fast when building a battery pack without professional tools so you can make more than 50 welds. Maybe an entire pack depending on size.
I pushed to the limit the welder when taping the video, please don't do that. You should stop when the temperature is above 45º celsius.
With the piece of wood and the ram heatsink any user might do a pack using 0.2 nickel. If it gets too hot let it rest for a while or place it near a fan or cold place and then you can resume the task. The purpose of this device is to be as cheap and small as possible and that has been achieved for sure. Fast performance is none of its virtues. If you need a fast job with big packs do not buy this welder, the boss welder is easy to cool and works faster.
So yeah, this device is 0.2 capable if you are not in a rush to build a pack. Many big ac spot welders can't do 0.2mm so it makes it even more impressive. I am loving it :)

Post Reply