K5 Blazer Forums  
Home of the 1969-91 K5 Blazer/Jimmy including GM Trucks and Suburbans.  
Go Back   CK5 Forums > General Discussion > The Tool Shed

Remove these ads.

Reply
 
Thread Tools Display Modes
Old 05-06-2009, 09:55 AM   #1
jt512
Supporting Member
another Cummins K5 guy
 
jt512's Avatar
 
Join Date: Oct 2006
Location: Maryland
Posts: 4,392

i Trader: (0 )

GM of the month Winner
Question Millermatic 130 mig question.

Does anyone have one and what set up (wire size, and settings) have you found to work best on sheet metal work (floors, rockers etc).

I am using one that belongs to a friend and I cannot stop burning through on everything. It is running .023 wire, 75/25 mix in the bottle, and even on heat setting 1 I am blowing holes.

I am used to a Miller 251 that I use at our shop and with .035 wire in it I can do 10x better then I have been able to do with the 130. I dont have 230v in my garage otherwise I would just bring the 251 home.

Any suggestions?
__________________
- Josh

The project- 86 K5, full vert, 12v Cummins 4500/205 D60/14B, frame off rebuild http://www.coloradok5.com/forums/sho...d.php?t=252851

The wheeler- April 14 calendar truck - 86 K30 shortened, 454/400/205 52/64's 4.56 60/14 locked and welded, tube bed and other stuff build > http://coloradok5.com/forums/showthread.php?t=292854

The tow rig / DD - 2011 Ram 2500 CCLB 4x4 , 6.7l Cummins, 6spd hand shaker, bone stock .........for now
jt512 is offline   Reply With Quote
Sponsored Links



Remove these ads.
Old 05-06-2009, 02:09 PM
Posted in reply to jt512's post "Millermatic 130 mig question."
  #2
bftank
Supporting Member
Registered User
 
bftank's Avatar
 
Join Date: Sep 2008
Location: rifle
Posts: 516

i Trader: (0 )

need to know what your machine is set at.

currently i am using lincoln's version of this welder and for 1/8th in steel i have voltage set on d with wire speed at 6.5. also using .25 wire.

you might try turning up your wire speed.
__________________
89 366 700r4 10 3.73 14 4.11 36X12.5 sx ghetto fabulous



http://coloradok5.com/forums/showthread.php?t=249133

tow pig- 1994 f350 crew powerstroke 5 speed. loving it so far.
bftank is offline   Reply With Quote
Old 05-06-2009, 04:22 PM
Posted in reply to bftank's post starting "need to know what your machine is set..."
  #3
AZ79K5Project
Supporting Member
Registered User
 
AZ79K5Project's Avatar
 
Join Date: Jan 2006
Location: Arizona
Posts: 2,083

i Trader: (5 )

I blew through sheet metal until I realized that I hadn't cleaned it well enough. I started using a wire brush on the grinder or prep pad to clean the metal, I had good luck and much less blow through. I am purely an amateur welder.
__________________
My Build Thread

If you can't fix it with a hammer, you've got an electrical problem
AZ79K5Project is offline   Reply With Quote
Old 05-06-2009, 05:22 PM
Posted in reply to AZ79K5Project's post starting "I blew through sheet metal until I..."
  #4
jt512
Supporting Member
another Cummins K5 guy
 
jt512's Avatar
 
Join Date: Oct 2006
Location: Maryland
Posts: 4,392

i Trader: (0 )

GM of the month Winner
I have tried the 2 lowest settings (heat) and also tried a few different wire speeds and still blowing holes . I took some scap pieces w/ me to work today and using the Millermatic 251 with .035 wire and same gas mix I'm having no problems. I set the 251 per the suggested settings (under the side cover) and my results are 100% better.

All the area's I have been trying are bare metal and ground is bare clean metal as well.

I am going to try a diffent wire in the 130 and see what happens.

Oh btw the sheet metal is approx. 20-22 gauge.
__________________
- Josh

The project- 86 K5, full vert, 12v Cummins 4500/205 D60/14B, frame off rebuild http://www.coloradok5.com/forums/sho...d.php?t=252851

The wheeler- April 14 calendar truck - 86 K30 shortened, 454/400/205 52/64's 4.56 60/14 locked and welded, tube bed and other stuff build > http://coloradok5.com/forums/showthread.php?t=292854

The tow rig / DD - 2011 Ram 2500 CCLB 4x4 , 6.7l Cummins, 6spd hand shaker, bone stock .........for now
jt512 is offline   Reply With Quote
Old 05-06-2009, 05:52 PM
Posted in reply to jt512's post starting "I have tried the 2 lowest settings..."
  #5
supersize75k5
Supporting Member
Registered User
 
supersize75k5's Avatar
 
Join Date: Feb 2004
Location: gilbert az
Posts: 8,507

i Trader: (2 )

I have the same welder, same wire and same gas mix in mine.


I use the second highest or highest heat setting from 1/8 inch to 3/8 and just move the wire speed around a bit as well as how fast or slow I weld.

What is your wire speed at for say 1/8?

You could try turning your wire speed up a bit? If your moving too slow you might be building up way too much heat?
supersize75k5 is offline   Reply With Quote
Old 05-20-2009, 07:13 AM   #6
jt512
Supporting Member
another Cummins K5 guy
 
jt512's Avatar
 
Join Date: Oct 2006
Location: Maryland
Posts: 4,392

i Trader: (0 )

GM of the month Winner
Well, I figured out the problem actually 2 problems, on the ground clamp the conection with the actual ground cable was corroded pretty bad. So I cleaned it and reconnected it then I tried it again and it was a tiny bit better but still not right, so I kept looking and found something else that didn't seem right.


The main problem was the drive spool, both of the set screws were lose causing the wire to hesitate when the trigger was pulled and it would actually continue feeding for a spilt second after releasing the trigger.

So now it's welding good, I'm still fine tuning my wire speed, the 023 wire is a lot different then the 035 I'm used to.
__________________
- Josh

The project- 86 K5, full vert, 12v Cummins 4500/205 D60/14B, frame off rebuild http://www.coloradok5.com/forums/sho...d.php?t=252851

The wheeler- April 14 calendar truck - 86 K30 shortened, 454/400/205 52/64's 4.56 60/14 locked and welded, tube bed and other stuff build > http://coloradok5.com/forums/showthread.php?t=292854

The tow rig / DD - 2011 Ram 2500 CCLB 4x4 , 6.7l Cummins, 6spd hand shaker, bone stock .........for now
jt512 is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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


All times are GMT -7. The time now is 10:52 PM.


Powered by vBulletin® Version 3.8.1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.