Search found 23 matches

by Valld
May 22 2017 4:42am
Forum: E-Bike Non-hub Motor Drives
Topic: New "TSDZ2 Torque Sensor Central Motor"
Replies: 5926
Views: 495465

Re: New "TSDZ2 Torque Sensor Central Motor"

Can someone please measure what is the maximum thickness of the bottom bracket to allow installation of this motor? I want to install it on a carbon frame and the BB wall on carbon frames is thicker than aluminum and SS.
by Valld
May 08 2017 9:02am
Forum: Items for Sale - New
Topic: 6pence Resistance Spot Welder
Replies: 187
Views: 28102

Re: 6pence Resistance Spot Welder

I wish this topic about the extra insulation came up 2 weeks earlier... I did read a ton of information before building my battery and this never came to my attention. I just hope my battery holds with no problems for a long time. But I really doubt with all the nickel, hot glue, foam, heat shrink (...
by Valld
May 05 2017 4:43am
Forum: Items for Sale - New
Topic: 6pence Resistance Spot Welder
Replies: 187
Views: 28102

Re: 6pence Resistance Spot Welder

ATOPELEC Store, Aliexpress. I bought everything necessary for the welder and battery pack from Aliexpress except the control board and electrodes for the welder and the battery cells, from Paull and Tumich in this forum respectively.
by Valld
May 05 2017 2:33am
Forum: Items for Sale - New
Topic: 6pence Resistance Spot Welder
Replies: 187
Views: 28102

Re: 6pence Resistance Spot Welder

Pack ready :) Will post some photos in a day or two with the whole bike, only left to complete the housing and mount it on the bike.
final pack.jpg
in the housing.jpg
by Valld
May 03 2017 2:44am
Forum: Items for Sale - New
Topic: 6pence Resistance Spot Welder
Replies: 187
Views: 28102

Re: 6pence Resistance Spot Welder

Final update :D . My pack is ready and fully operational. Real life always turns out different that the tests.... I made the rust test for all my nickel strips again, but this time I only soak them in salt water solution for about 10 minutes and then left them outside during the night. In the mornin...
by Valld
Apr 24 2017 3:11am
Forum: Items for Sale - New
Topic: 6pence Resistance Spot Welder
Replies: 187
Views: 28102

Re: 6pence Resistance Spot Welder

Time for update :) My batteries from Tumich just arrived this Saturday! I tested all of them by discharging all of them (4x4) in my SkyRC MC3000 charger from 3.5V to 3.3V at 1A discharge rate. Each cycle took 20 minutes and the process took me a full day. All 150 came in perfect condition, no damage...
by Valld
Mar 29 2017 4:51pm
Forum: Items for Sale - New
Topic: 6pence Resistance Spot Welder
Replies: 187
Views: 28102

Re: 6pence Resistance Spot Welder

☺ I literally hammered them straight in the middle of the copper core, with a hammer. The isolation of the cable is pretty strong and is holding all together.
by Valld
Mar 29 2017 1:36am
Forum: Items for Sale - New
Topic: 6pence Resistance Spot Welder
Replies: 187
Views: 28102

Re: 6pence Resistance Spot Welder

Just a small update to confirm that I'm able to weld 0.2mm nickel to a battery tab with my single 72Ah car battery. I tested a few different settings and settled on 1.5 - 1 - 10 ms on the controller. Tried with 8 and 9 ms pulse, not strong enough, with 10ms I cannot pry the nickel strip from the tab...
by Valld
Mar 23 2017 1:05am
Forum: Items for Sale - New
Topic: 6pence Resistance Spot Welder
Replies: 187
Views: 28102

Re: 6pence Resistance Spot Welder

It's great to be able to machine yourself small parts, so useful! There is no machine shops here in Botswana, so I will stick to cable lugs with cut off eye for crimping the cable and electrode....
by Valld
Mar 22 2017 7:32am
Forum: Items for Sale - New
Topic: 6pence Resistance Spot Welder
Replies: 187
Views: 28102

Re: 6pence Resistance Spot Welder

I like this tip holders, where did you get them? I failed to find anything similar in both Aliexpress and Ebay, or other china online shops.....
by Valld
Feb 20 2017 1:17pm
Forum: Items for Sale - New
Topic: JP spot welder
Replies: 1242
Views: 170861

Re: JP spot welder

I've been following this thread and others for years....cannot believe no one has turned this into a business yet......I've been wanting one of these for a long time now. SMH! :cry: See this thread below. I bought one and I'm very happy with it. Based on JP welder, but much improved. https://endles...
by Valld
Feb 08 2017 2:27pm
Forum: Items for Sale - New
Topic: 6pence Resistance Spot Welder
Replies: 187
Views: 28102

Re: 6pence Resistance Spot Welder

So cool! It looks sexy and powerfull :D
by Valld
Feb 06 2017 9:16am
Forum: Items for Sale - New
Topic: 6pence Resistance Spot Welder
Replies: 187
Views: 28102

Re: 6pence Resistance Spot Welder

The board didn't arrive yet. It takes at least a month from UK to Botswana usually. I will report when here :-)
by Valld
Feb 06 2017 1:31am
Forum: Battery Technology
Topic: Common pack design mistakes, how to avoid?
Replies: 254
Views: 39324

Leady Solar Busbar Wire 6mm X0.2mm

Maybe not the best thread to discuss spot welder strips material, please move to the appropriate place if you think it doesn't belong here.... Looking for different metal strips I found this : https://www.aliexpress.com/store/product/SIZE-6x0-2mm-Leady-Solar-Busbar-Wire-Solder-Connection-Wires/40069...
by Valld
Feb 05 2017 1:31am
Forum: Items for Sale - New
Topic: 6pence Resistance Spot Welder
Replies: 187
Views: 28102

Re: 6pence Resistance Spot Welder

Sure, the welds are beautifull! No heat buildup on the boards, no cable kicking, very little or no sparks if the electrodes are perpendicular to the tabs. The left is with the default settings, the right one with 8ms second pulse. I only have 0.15mm nickel strip ( pure, tested). I'm able to weld 3 s...
by Valld
Feb 04 2017 5:06pm
Forum: Items for Sale - New
Topic: 6pence Resistance Spot Welder
Replies: 187
Views: 28102

Re: 6pence Resistance Spot Welder

And some more :
by Valld
Feb 04 2017 5:01pm
Forum: Items for Sale - New
Topic: 6pence Resistance Spot Welder
Replies: 187
Views: 28102

Re: 6pence Resistance Spot Welder

Welder completed. I had a faulty invertor getting dust for years and decided to use its box. One of the most annoying things with my first designs was that the weld cables were not fixed to anything stable and the whole system was moving when I was moving the cables, so I just mounted the cable term...
by Valld
Jan 30 2017 12:54pm
Forum: Items for Sale - New
Topic: 6pence Resistance Spot Welder
Replies: 187
Views: 28102

Re: 6pence Resistance Spot Welder

LOL! This looks like a piece of art! Really nice. I forgot to mention that I do not get any heat on the power board, even with rapid (as fast as I can) welding. I believe its not the heat that kills the FETs.
by Valld
Jan 29 2017 2:50pm
Forum: Items for Sale - New
Topic: 6pence Resistance Spot Welder
Replies: 187
Views: 28102

Re: 6pence Resistance Spot Welder

Thanks for the link fechter and Paul, very useful information there! I'm sourcing some 0.3mm nickel, should be OK with even only 2 to 3 connections between the sub packs and I don't have to make many layers.....
by Valld
Jan 26 2017 2:42pm
Forum: Items for Sale - New
Topic: 6pence Resistance Spot Welder
Replies: 187
Views: 28102

Re: 6pence Resistance Spot Welder

Hi guys, Time for me to share my experience with the 6pence spot welder. Below are a few photos that speak more than words, so I will try to be as short as possible. Let me start with special thanks to Paul who was very helpful and assisted me big time with building the power board. The control boar...
by Valld
Jan 07 2017 12:46am
Forum: Items for Sale - New
Topic: 6pence Resistance Spot Welder
Replies: 187
Views: 28102

Re: 6pence Resistance Spot Welder

Long vacation... Please count me for 1 power board as well.
by Valld
Dec 16 2016 8:10am
Forum: Items for Sale - New
Topic: 6pence Resistance Spot Welder
Replies: 187
Views: 28102

Re: 6pence Resistance Spot Welder

Hi 6pence followers, Below is my attempt to design a simple Power Board for the 6 pence spot welder working closely with the OP. Not having any education (and relatively little experience) in electronics, but wanting to make one myself I came up with this . All elements dimensions are taken from the...
by Valld
Dec 07 2016 1:58am
Forum: Items for Sale - New
Topic: 6pence Resistance Spot Welder
Replies: 187
Views: 28102

Re: 6pence Resistance Spot Welder

Hi PGUK,

How can I buy the board from you? I just joined the forum yesterday to be able to PM you, but the message is staying in the outbox....