Search found 1846 matches

by riba2233
Aug 15 2020 12:11pm
Forum: Battery Technology
Topic: JP spot-welder, FET-switched, timed adj. pulse
Replies: 616
Views: 76164

Re: JP spot-welder, FET-switched, timed adj. pulse

I don't think it makes a lot of difference, but I am not sure.

Also one more thing, you have leads connected to mosfets coming from the same side, this is bad for current balance, and could burn mosfets. I would suggest that you connect them to opposite sides.
by riba2233
Aug 10 2020 2:41am
Forum: Battery Technology
Topic: JP spot-welder, FET-switched, timed adj. pulse
Replies: 616
Views: 76164

Re: JP spot-welder, FET-switched, timed adj. pulse

I see you have both electrodes attached to same piece of wood, I would recommend against this approach because it's unlikely you will have the equal pressure on both of them.
by riba2233
Jul 14 2020 3:30pm
Forum: Battery Technology
Topic: JP spot welder open source
Replies: 42
Views: 6141

Re: JP spot welder open source

Riba - Apologies, I've found that the function Get_ADC_Sample is included in the mikroC PRO libraries. I'm new to using mikroC PRO so I didn't know they had these libraries. I find that when you open the .mcppi file in mikro C PRO it refers to a source document called sw_pot.c but reports it as mis...
by riba2233
Jul 06 2020 6:16am
Forum: Battery Technology
Topic: JP spot welder open source
Replies: 42
Views: 6141

Re: JP spot welder open source

Riba - The souce code is missing the routines for obtaining the reading from the ADC. The mcppi file is also missing all the source code so you can't get it from there. Could you upload the code? That's weird, I have the ADC part of the code in it. I have just copied that part from some other sourc...
by riba2233
Apr 21 2020 3:40pm
Forum: Battery Technology
Topic: JP spot welder open source
Replies: 42
Views: 6141

Re: JP spot welder open source

Well, this was hard to watch:


by riba2233
Mar 10 2020 4:23am
Forum: Battery Technology
Topic: JP spot welder open source
Replies: 42
Views: 6141

Re: JP spot welder open source

If you can't find the polymer version, standard electrolytic will do.
by riba2233
Dec 11 2019 6:22am
Forum: Battery Technology
Topic: JP spot welder open source
Replies: 42
Views: 6141

Re: JP spot welder open source

Can anyone explain what specific mosfet leads the TVS gets attached to Gate, Drain, Source? In response to this: "Another TVS diode goes across the FET legs to catch what the other diode misses". Thank you Steve Drain and source definitely :) Gate is just for mosfet control, no real power passing t...
by riba2233
Oct 26 2019 5:23am
Forum: Battery Technology
Topic: JP spot welder open source
Replies: 42
Views: 6141

Re: JP spot welder open source

spinningmagnets wrote:
Oct 26 2019 4:12am
I'm sure anyone here can order the welder electrodes from kWeld and try them on a JP welder. I am certain they would work fine.
Yep, that's correct :)
by riba2233
Oct 25 2019 1:36am
Forum: Battery Technology
Topic: JP spot welder open source
Replies: 42
Views: 6141

Re: JP spot welder open source

Sure, it will work.
by riba2233
Oct 20 2019 4:59am
Forum: Battery Technology
Topic: JP spot welder open source
Replies: 42
Views: 6141

Re: JP spot welder open source

Thanks man, this is really useful! :bigthumb:
by riba2233
Oct 15 2019 1:24am
Forum: Battery Technology
Topic: JP spot welder open source
Replies: 42
Views: 6141

Re: JP spot welder open source

krlenjuska wrote:
Oct 14 2019 10:36am
riba2233 wrote:
Oct 12 2019 10:46am
You can use anything from 0.25 w above.
Can i use some other similar mosfets? Cant find 1324 at my local stores.

EDIT: never mind i managed to find it.
You can use those or better (watch for max voltage, IR, and gate charge).
by riba2233
Oct 12 2019 10:46am
Forum: Battery Technology
Topic: JP spot welder open source
Replies: 42
Views: 6141

Re: JP spot welder open source

You can use anything from 0.25 w above.
by riba2233
Oct 11 2019 3:05am
Forum: Battery Technology
Topic: JP spot welder open source
Replies: 42
Views: 6141

Re: JP spot welder open source

I ordered PCBs and all components - will try to make this :) Great to hear, please post your progress and pictures here 8) Most difficult thing to do for me is to program pic controller - never tried this :) It's simple once you have a programmer like pickit 2 or 3 with their own software, just con...
by riba2233
Oct 10 2019 1:22pm
Forum: Battery Technology
Topic: JP spot welder open source
Replies: 42
Views: 6141

Re: JP spot welder open source

krlenjuska wrote:
Oct 10 2019 12:54pm
I ordered PCBs and all components - will try to make this :)
Great to hear, please post your progress and pictures here 8)
by riba2233
Oct 09 2019 4:00am
Forum: Battery Technology
Topic: JP spot welder open source
Replies: 42
Views: 6141

Re: JP spot welder open source

Thanks for reuploading, the more sources the better :)
by riba2233
Oct 06 2019 12:07pm
Forum: Battery Technology
Topic: JP spot welder open source
Replies: 42
Views: 6141

Re: JP spot welder open source

Thanks, I hope this will be helpful to someone. :thumb:

I'm not taking donations.

Thanks, I am very happy with the design and I hope others will like it also. I have great plans for the future :)
by riba2233
Oct 05 2019 9:36am
Forum: Items for Sale - New
Topic: JP spot welder
Replies: 1242
Views: 193162

Re: JP spot welder

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 :)
by riba2233
Oct 05 2019 9:34am
Forum: Battery Technology
Topic: JP spot welder open source
Replies: 42
Views: 6141

JP spot welder open source

Hi, I have decided to open source everything related to my spot welder. It is a simple, reliable, and easy to repair battery powered spot welder. You can use these files for all purposes, even commercial, at your own risk. Here you can find all files needed to make this spot welder from scratch: htt...
by riba2233
Sep 25 2019 3:41am
Forum: Items for Sale - New
Topic: JP spot welder
Replies: 1242
Views: 193162

Re: JP spot welder

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 :)
by riba2233
Sep 17 2019 3:18am
Forum: Items for Sale - New
Topic: JP spot welder
Replies: 1242
Views: 193162

Re: JP spot welder

tomjasz wrote:
Sep 14 2019 5:34pm
Buy two get a discount on the third? :wink:
PM me! :)
by riba2233
Sep 13 2019 7:35am
Forum: Items for Sale - New
Topic: JP spot welder
Replies: 1242
Views: 193162

Re: JP spot welder

Only two pieces left! They are packed and ready to ship immediately after receiving payment! :bigthumb:
by riba2233
Sep 10 2019 10:34am
Forum: Items for Sale - New
Topic: JP spot welder
Replies: 1242
Views: 193162

Re: JP spot welder

Thank you for kind words guys, the whole idea behind the welder was that is simple, robust and reliable. 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 ...
by riba2233
Sep 05 2019 12:54am
Forum: Items for Sale - New
Topic: JP spot welder
Replies: 1242
Views: 193162

Re: JP spot welder

One more gone, now 5 units left, hurry up! :)
by riba2233
Aug 30 2019 7:15am
Forum: Items for Sale - New
Topic: JP spot welder
Replies: 1242
Views: 193162

Re: JP spot welder

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:
by riba2233
Aug 16 2019 2:01am
Forum: Items for Sale - New
Topic: JP spot welder
Replies: 1242
Views: 193162

Re: JP spot welder

Cmon guys, still available! :)