Shop Floor Talk  

Go Back   Shop Floor Talk > Welding and Metalworking Forums > Welding

SFT Search:   
Reply
 
Thread Tools Display Modes
  #1  
Old 11-09-2010, 11:45 PM
milomilo's Avatar
milomilo milomilo is offline
Auction Addict
 
Join Date: May 2010
Location: Wheatland, Wyoming
Posts: 18,839
Default Every one has one

What is your opinions on the magnetic grounds for welders? I have one and I am not too pleased with it. It gets hot during use, as if it is not making a good electrical ground and if you drop it on the ground it picks up crap and you have to clean it out before you can use it again. It also isn't too good for sticking to round surfaces.
__________________
Chris

One of the penalties for refusing to participate in politics is that you end up being governed by your inferiors. Plato

LET'S GO BRANDON!!!!

B biggest
I idot
D democrats
E ever
N nominated
Reply With Quote
  #2  
Old 11-10-2010, 12:38 AM
AnotherDano AnotherDano is offline
Senior Member
 
Join Date: Oct 2007
Location: Wyoming - all the way from Tennessee
Posts: 410
Default

Chris,

I have thought about getting one for the plasma cutting table but would probably forget it was there and cut it apart.

For the small amount of welding I do, clamping the ground to the little welding table seems to work just fine. It works even better when the piece is clamped down to the table tightly.
Reply With Quote
  #3  
Old 11-10-2010, 06:13 AM
LW Hiway's Avatar
LW Hiway LW Hiway is offline
Lord of the Minions
 
Join Date: Jun 2005
Location: Fuck Lake Charles
Posts: 21,434
Default

Their just like left nostril inhalers. You make it and sell it, someone will buy it.

I've always figured if I have a clamp with a big assed spring and gnarly teeth to bite into and clamp onto steel and I have to again wiggle it to make a decent ground, a magnet is all fluff and bunnies.
__________________
God, if you would grant me one request through Prayer, please help me be the Man my Dog thinks I am. Please.

Quoting "The Hunt". "A man will walk into hell with both eyes and arms wide open. His dog will know better."

I never thought I'd live long enough to become a grumpy old bastard. Here I am, killing it!
Reply With Quote
  #4  
Old 11-10-2010, 09:33 AM
moe1942's Avatar
moe1942 moe1942 is offline
Voice of Experience
 
Join Date: Jun 2004
Location: Alexandria, Louisiana
Posts: 11,236
Default

I have one and it has been well used, Keep it in a zip lock back when not in use.

Works great if you give it fresh metal to clamp on..A bit more touchy cause they don't have teeth..
__________________
Don't pick a fight with an old man. If he is too old to fight, he'll just kill you... John Steinbeck

"If we ever forget that we're one nation under God, then we will
be a nation gone under". ~Ronald Reagan

We should have picked our own cotton...

I love my women hot and my beer ice cold..
Reply With Quote
  #5  
Old 11-10-2010, 11:28 AM
cramd's Avatar
cramd cramd is offline
Drivin' Fool
 
Join Date: Nov 2008
Location: Yorkton, Saskatchewan,Canada
Posts: 4,333
Default

I had one I used at work for a while.
The spring behind the magnet somehow lost its tension, so that the magnet no longer protruded enough to latch on the work piece reliably. I also found it to be a pain when trying to weld on anything that wasn't flat, and it picked up a lot of crap.
I eventually got P.O'd enough to pitch it in the scrap bin, and went back to using a regular clamp.
__________________
Miller Thunderbolt XL AC/DC
Hobart Handler 190
Angle grinders,14" chop saw,Hobart medium duty O/A set
Some air tools,fair selection of hand tools,and other "stuff"
____________________________________________

The difference between genius and stupidity, is that genius has limits. Albert Einstein
Reply With Quote
  #6  
Old 11-10-2010, 12:09 PM
flametamer's Avatar
flametamer flametamer is offline
Elite Member
 
Join Date: Jan 2005
Location: Benton, Mississippi
Posts: 1,428
Send a message via Yahoo to flametamer
Default

Can't stand them. They won't stay grounded, and then when the spring melts out of it, it gets worse.


Dt
__________________
Sero Sed Serio
Acta non verba
Reply With Quote
  #7  
Old 11-10-2010, 11:21 PM
TriHonu's Avatar
TriHonu TriHonu is offline
Senior Member
 
Join Date: May 2007
Location: St Paul, Minnesota, USA
Posts: 437
Default

I have one and use it occasionally. The biggest problem I had was in my setup. I attached a piece of strap metal to the stud so I could grab it with the ground clamp.

The weight of the ground clamp was twisting the stud enough to keep it from maintaining a good connection.

So I added a Lenco connector to the end of my ground cables and set up my ground clamps and magnet with short whips of cable with Lenco connectors on them.

Less weight seems to keep the stud in contact. As I type this, I realize I should have also welded a bushing to the magnet so the stud has to stay at 90 degrees.

I can also attach any ground clamp to any welder and easily add additional cable lengths to the leads.

And while on the topic of grounds, after I read the Grounding Tip on WeldingTipsAndTricks.com. I took the time to check all my cables and ground clamps. I removed each cable cleaned the cable socket reattached the cables and cleaned all the slag from the jaws on the clamps. It did smooth out the arc.
Reply With Quote
  #8  
Old 11-13-2010, 12:32 AM
Silverback's Avatar
Silverback Silverback is offline
Senior Member
 
Join Date: Jul 2004
Location: DC Metro/MD
Posts: 662
Default

I had one that I couldn't stand... it seemed like it was moving around enough that I'd end up with messed up spots near where it was making contact from the ground arching, and messed up weld performance. I don't even know what happened with it.

As far as heat goes, I've noticed the clamp on even my little 110 welder gets warm after a couple of minutes use.
__________________
Mark
(aka: Silverback, WS6 TA, JYDog, 83 Crossfire TA, mpikas, mmp...)
Synchrowave 180 SD | MillerMatic 211MVP + Spoolmate | Hobart Handler 135 | Everlast Power Plasma 50
1960 Bridgeport J-head | Grizzly 10x22 | HF bandsaw | Rigid 4.5” angle grinder (+2 cheapie HF ones)
BFH
Reply With Quote
  #9  
Old 11-13-2010, 06:42 AM
nctox's Avatar
nctox nctox is offline
SFT Navigator
 
Join Date: Feb 2010
Location: western NC
Posts: 5,230
Default

I guess I'm the exception. I don't have one, and never thought of buying one.
__________________
Trying to make retirement as much fun as 40 years of working

So far,,,I'm succeeding.

"I don't care if you like me or not. I'm not even on Facebook."
Reply With Quote
  #10  
Old 11-13-2010, 09:42 AM
Lu47Dan's Avatar
Lu47Dan Lu47Dan is offline
Connoisseur of Old Iron
 
Join Date: Mar 2006
Location: N/W Pa.
Posts: 6,026
Default

I had thought of buying one a time or two, but never did.
I have a heavy clamp type ground that I have set up for both of my welding machines. I need to buy a new one for my small mig welder and a new one for my plasma cutter also, these two will be directly attached to the ground cables instead of being on a twist lock connector like the one for my big welders.
For round stuff such as pipe I made what I call a pipeliners ground. This device is made from 1/4" X 1" flat stock. It is has two major pieces, the grounding tongue and the legs.
The grounding bar is about 10" long with a point ground on one end and then bent to a 90 degree angle.
The other end has is bent the opposite way at about 22 degrees after drilling a 1/2 hole in it.
The leg unit are about 8" long and is bent to about 22 degrees (each side) after welding it to the tongue.
After the legs have been bent I covered them with some heat shrink tubing to prevent them from arcing and marring the surface of the pipe.
Bolt the tongue to a piece of welding lead and add your favorite quick connector.
Using this is as simple as cleaning a spot up for your initial ground spot and them placing the point on the spot and wrapping a real bungee cord around the tongue to hold the point tightly to the pipe or bar stock being welded. Out on the pipe line this is place on a previous weld to prevent damage to the pipe but for your home shop it can be place anywhere you have the room for it. If the bungee cord is tight enough then the ground cable will wrap around the pipe as you turn the pipe.
You can add heat shrink tubing to the tongue also but I did not as I hook the bungee cord hooks to each other instead of over the tongue to prevent the hooks from carrying the welding current.
The grounding point should start out with a flat spot on it not a sharp point. I added some bronze to mine after some use, but it is not necessary .
I would add a couple of pictures but a friends brother want it more then I did and I sold it to him for a good profit, I have to build a new one pretty soon as I have a couple of pipe projects to do here.
Dan.
__________________
Tools to Men are like Shoes to Women , you can never have too many !!
Used diesel engines are an adventure anyway you look at them !!
Miller XMT-304 Multiprocess
Miller 10-E Wire Feeder
Miller Spectrum 2050 Plasma Cutter
Hobart AC/DC stick welder
Hobart 175 Mig
Craftsman O/A set
Turbo torch and B-tank
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Web Search:

All times are GMT -5. The time now is 11:28 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2022, vBulletin Solutions Inc.