JP spot welder

Place for dealers to post items for sale.
BYqSXt8Z   100 W

100 W
Posts: 121
Joined: Jul 03 2014 8:29pm
Location: GTA, Ontario, Canada

Re: JP spot welder

Post by BYqSXt8Z » Aug 29 2019 1:02pm

riba2233 wrote:Cmon guys, still available! :)
Pmed you

Sent from my CLT-L04 using Tapatalk


User avatar
riba2233   1 MW

1 MW
Posts: 1854
Joined: Jun 30 2013 10:23am
Location: Croatia

Re: JP spot welder

Post by riba2233 » Aug 30 2019 7:15am

Ok guys, I've just sold out DIY kits, so I have only about 6 assembled units left.

Get it before it's all gone! :mrgreen:
My electric moped: http://www.evalbum.com/4966

My electric car: http://www.evalbum.com/5364

User avatar
riba2233   1 MW

1 MW
Posts: 1854
Joined: Jun 30 2013 10:23am
Location: Croatia

Re: JP spot welder

Post by riba2233 » Sep 05 2019 12:54am

One more gone, now 5 units left, hurry up! :)
My electric moped: http://www.evalbum.com/4966

My electric car: http://www.evalbum.com/5364

User avatar
tomjasz   10 GW

10 GW
Posts: 4376
Joined: Mar 29 2014 1:45pm
Location: Out riding, MN USA
Contact:

Re: JP spot welder

Post by tomjasz » Sep 06 2019 8:05am

riba2233 wrote:
Sep 05 2019 12:54am
One more gone, now 5 units left, hurry up! :)
Is two enough, or three too many! What’s the closeout price again? <VBG>
Just sold my unused KWeld needing updates and a fix. With the case and parts I’m eating around $100 of air. That left a bad taste. Kinda unclear how the JP is so simple and still serves users well. Or maybe the KWeld has enough upgrades to keep busier builders a step ahead.

Do you have a set of probes/weld tips? Or maybe I can collect commissions on previous sales and get a deeper discount on one of the 5? <wink>
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
Cowardlyduck   1.21 GW

1.21 GW
Posts: 3831
Joined: Jun 26 2011 8:41pm
Location: Canberra, ACT, Australia

Re: JP spot welder

Post by Cowardlyduck » Sep 08 2019 5:09am

I'm tempted to grab another one as my existing one has been so useful, but the problem is Jakov, you've made it so well it's so reliable, I don't see my existing one breaking anytime soon. :lol:

That being said, the SLA I've been using for the last 4 years was getting pretty tired in my last pack build. I propped it up with some old LiPo, which worked for a time, but eventually killed the LiPo.
I had some old NiMH cells lying around from when I changed over my 04 Prius battery a few years back, so I put them into a 2S2P configuration and paralleled with my SLA.
DSC_5615.JPG
DSC_5615.JPG (144.57 KiB) Viewed 1820 times
DSC_5617.JPG
DSC_5617.JPG (288.34 KiB) Viewed 1820 times
This should boost the amps noticeably and extend this old SLA at least another year till I am due to get a new SLA in my car. :)

I also made some new tips out of copper rod as was suggested by others. Using my steel pencil sharpener and drill worked great to get them nice and pointy as you can see above.

Cheers
ebikegarage.com.au - My website
Ebike Garage - My YouTube Ebike ramblings.
Cowardlyducks - Videos - Ride videos
BikeE recumbent commuter - 9C, 6Fet Grinfineon, internal 17AH, 52V, + on-board solar.

Custom made 18650/21700 battery packs - Australia only

User avatar
tomjasz   10 GW

10 GW
Posts: 4376
Joined: Mar 29 2014 1:45pm
Location: Out riding, MN USA
Contact:

Re: JP spot welder

Post by tomjasz » Sep 08 2019 12:04pm

Cowardlyduck wrote:
Sep 08 2019 5:09am
I'm tempted to grab another one as my existing one has been so useful, but the problem is Jakov, you've made it so well it's so reliable, I don't see my existing one breaking anytime soon. :lol:


Cheers
Because they're so budget-priced, and reliable I DID add a backup. I'd rather use it then the KWeld I sold for $50.
If I wasn't so short $$'s at the moment I think I'd have pulled the trigger for a third.
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.

BYqSXt8Z   100 W

100 W
Posts: 121
Joined: Jul 03 2014 8:29pm
Location: GTA, Ontario, Canada

Re: JP spot welder

Post by BYqSXt8Z » Sep 08 2019 12:20pm

Yup, I bought the last 2 diy kits and I'll upgrade those heatsinks... I'll get amazing duty cycle :D

Sent from my CLT-L04 using Tapatalk


User avatar
tomjasz   10 GW

10 GW
Posts: 4376
Joined: Mar 29 2014 1:45pm
Location: Out riding, MN USA
Contact:

Re: JP spot welder

Post by tomjasz » Sep 08 2019 3:06pm

BYqSXt8Z wrote:
Sep 08 2019 12:20pm
Yup, I bought the last 2 diy kits and I'll upgrade those heatsinks... I'll get amazing duty cycle :D

Sent from my CLT-L04 using Tapatalk
Which heatsinks will you use?
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.

cr4west   1 µW

1 µW
Posts: 1
Joined: Sep 07 2019 11:11am
Location: Boise Idaho

Re: JP spot welder

Post by cr4west » Sep 08 2019 3:11pm

Enjoyed reading this form. You all saved me from taking my chances on a used Sunkko 788+ welder.

I'm interested in buying one. Looks like the JP KIT versions may be all gone now. If so I will go for a JP assembled version.
I plan to use lead acid batteries.
Couple questions. (Forgive me if this has already been discussed):
1. Can enough supply batteries be attached to weld copper strip or layered nickel on top of copper strip?
2. Later on could the JB controller be modified to use an AC/DC pulse tig welder as a power supply? The reason I am asking is I saw that video about the guy welding copper strip on Y-tube using a JASIC WSE-200P TIG200P AC/DC TIG/MMA Square Wave Pulse Inverter Welder.
Currently resurrecting a very abused Schwinn Stealth 1000 (Ezip 1000)

BYqSXt8Z   100 W

100 W
Posts: 121
Joined: Jul 03 2014 8:29pm
Location: GTA, Ontario, Canada

Re: JP spot welder

Post by BYqSXt8Z » Sep 08 2019 3:49pm

tomjasz wrote:
BYqSXt8Z wrote:
Sep 08 2019 12:20pm
Yup, I bought the last 2 diy kits and I'll upgrade those heatsinks... I'll get amazing duty cycle :D

Sent from my CLT-L04 using Tapatalk
Which heatsinks will you use?
I'll be putting in copper bars where the aluminum bars currently are.

Sent from my CLT-L04 using Tapatalk


BYqSXt8Z   100 W

100 W
Posts: 121
Joined: Jul 03 2014 8:29pm
Location: GTA, Ontario, Canada

Re: JP spot welder

Post by BYqSXt8Z » Sep 08 2019 4:03pm

tomjasz wrote:
BYqSXt8Z wrote:
Sep 08 2019 12:20pm
Yup, I bought the last 2 diy kits and I'll upgrade those heatsinks... I'll get amazing duty cycle :D

Sent from my CLT-L04 using Tapatalk
Which heatsinks will you use?
I'll be putting in copper bars where the aluminum bars currently are. Maybe with some slots in there too.

Sent from my CLT-L04 using Tapatalk


User avatar
riba2233   1 MW

1 MW
Posts: 1854
Joined: Jun 30 2013 10:23am
Location: Croatia

Re: JP spot welder

Post by riba2233 » Sep 10 2019 10:34am

Thank you for kind words guys, the whole idea behind the welder was that is simple, robust and reliable.


cr4west wrote:
Sep 08 2019 3:11pm
Enjoyed reading this form. You all saved me from taking my chances on a used Sunkko 788+ welder.

I'm interested in buying one. Looks like the JP KIT versions may be all gone now. If so I will go for a JP assembled version.
I plan to use lead acid batteries.
Couple questions. (Forgive me if this has already been discussed):
1. Can enough supply batteries be attached to weld copper strip or layered nickel on top of copper strip?
2. Later on could the JB controller be modified to use an AC/DC pulse tig welder as a power supply? The reason I am asking is I saw that video about the guy welding copper strip on Y-tube using a JASIC WSE-200P TIG200P AC/DC TIG/MMA Square Wave Pulse Inverter Welder.

Hey, thank you for your interest!

1. Yes, you can stack nickel strips without any problems! It can weld copper strips up to 0.1 mm, but it's very stochastic and I strongly don't recommend it.

2. I really don't think so. Maybe with some modification on the logic side.
My electric moped: http://www.evalbum.com/4966

My electric car: http://www.evalbum.com/5364

User avatar
riba2233   1 MW

1 MW
Posts: 1854
Joined: Jun 30 2013 10:23am
Location: Croatia

Re: JP spot welder

Post by riba2233 » Sep 13 2019 7:35am

Only two pieces left! They are packed and ready to ship immediately after receiving payment! :bigthumb:
My electric moped: http://www.evalbum.com/4966

My electric car: http://www.evalbum.com/5364

User avatar
tomjasz   10 GW

10 GW
Posts: 4376
Joined: Mar 29 2014 1:45pm
Location: Out riding, MN USA
Contact:

Re: JP spot welder

Post by tomjasz » Sep 14 2019 5:34pm

Buy two get a discount on the third? :wink:
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
riba2233   1 MW

1 MW
Posts: 1854
Joined: Jun 30 2013 10:23am
Location: Croatia

Re: JP spot welder

Post by riba2233 » Sep 17 2019 3:18am

tomjasz wrote:
Sep 14 2019 5:34pm
Buy two get a discount on the third? :wink:
PM me! :)
My electric moped: http://www.evalbum.com/4966

My electric car: http://www.evalbum.com/5364

User avatar
riba2233   1 MW

1 MW
Posts: 1854
Joined: Jun 30 2013 10:23am
Location: Croatia

Re: JP spot welder

Post by riba2233 » Sep 25 2019 3:41am

All the welders have been sold, big thanks to all of you who have supported me in this last few years!

As a thank you to community I will give you a little surprise later :)
My electric moped: http://www.evalbum.com/4966

My electric car: http://www.evalbum.com/5364

BYqSXt8Z   100 W

100 W
Posts: 121
Joined: Jul 03 2014 8:29pm
Location: GTA, Ontario, Canada

Re: JP spot welder

Post by BYqSXt8Z » Sep 27 2019 3:20pm

riba2233 wrote:Depends what polarity, of 12V logic supply no, it has protection diode (if it doesn't work, just reverse the polarity), but don't mix the polarity from the welding battery. Welder goes to the negative pole. If you have any doubts please ask before trying, thanks! :)
And once I've screwed that up, what do I do?.... Asking for umm.. For a friend Image

Sent from my CLT-L04 using Tapatalk


User avatar
riba2233   1 MW

1 MW
Posts: 1854
Joined: Jun 30 2013 10:23am
Location: Croatia

Re: JP spot welder

Post by riba2233 » Oct 05 2019 9:36am

Hi guys, just wanted to let you know that I have open sourced the welder design:

viewtopic.php?f=14&t=102681

So this thread can be closed :)
My electric moped: http://www.evalbum.com/4966

My electric car: http://www.evalbum.com/5364

User avatar
LSBW   1 kW

1 kW
Posts: 313
Joined: Sep 30 2012 10:06pm
Location: Toronto, Canada

Re: JP spot welder

Post by LSBW » Feb 25 2021 8:44pm

After 6 years of procrastination, finally got this awesome welder to work!
For details see here: viewtopic.php?f=14&t=110637

User avatar
tomjasz   10 GW

10 GW
Posts: 4376
Joined: Mar 29 2014 1:45pm
Location: Out riding, MN USA
Contact:

Re: JP spot welder

Post by tomjasz » Mar 03 2021 6:20pm

Have a backup welder I will part with. Bought it from Jakov. No probes or footswitch. Just the welder module. Seems there's a chance my pacemaker won't play nice with it. Won't be doing more builds, just keeping original for repairs. AND a friend as the operator.
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.

douglashart   100 W

100 W
Posts: 122
Joined: Dec 21 2013 1:00am
Location: saint helens oregon

Re: JP spot welder

Post by douglashart » Mar 16 2021 12:05am

I would like to get that welder module from ya tom. Just tried using mine and ... nothing. Ive got the red led and a green flicker with the foot switch but nothing.
Anyway, I'm not real familiar corresponding on here . Can you PM me?

douglashart   100 W

100 W
Posts: 122
Joined: Dec 21 2013 1:00am
Location: saint helens oregon

Re: JP spot welder

Post by douglashart » Mar 16 2021 12:10am

Tom , I need that weld module. Can you PM me?

User avatar
tomjasz   10 GW

10 GW
Posts: 4376
Joined: Mar 29 2014 1:45pm
Location: Out riding, MN USA
Contact:

Re: JP spot welder

Post by tomjasz » Apr 01 2021 12:00pm

douglashart wrote:
Mar 16 2021 12:10am
Tom , I need that weld module. Can you PM me?
Sorry, I seem to have missed this...
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.

douglashart   100 W

100 W
Posts: 122
Joined: Dec 21 2013 1:00am
Location: saint helens oregon

Re: JP spot welder

Post by douglashart » Apr 02 2021 10:18am

tomjasz wrote:
Mar 03 2021 6:20pm
Have a backup welder I will part with.
Does it mean you want to sell it?

Post Reply