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Go Back   SailNet Community > On Board > Gear & Maintenance > welding and welder options
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Topic Review (Newest First)
10-29-2013 09:39 PM
xymotic
Re: welding and welder options

Quote:
Originally Posted by Daydreamer22 View Post
Check out the Ready Welder. I use one on my service truck. It's a 24v DC Mig spool gun. Power is from two deep cycle batteries, or three for more heat. Uses shielded wire or plain wire with a co2 bottle. Can do SS or AL with proper wire and gas mix. Gun and cables fit into a briefcase. Welding time varies with battery condition. Took a couple days to weld up a frame for the dump bed on a pickup truck, discharging and recharging batteries. Fixing brackets and other small projects can be done right away.
I took a welding class at our local Community College.
Best wishes however you go.
I've been looking at them for a while. I'm thinking it would be a lot more useful just as a spool gun powered by a regular welder. I've welded with batteries before... Just not to thrilled with the whole concept I guess. I think it'd be cool if I just wanted to repair stuff on the boat. But I actually need to fabricate some stuff at home first.

When you say you use it on your service truck, are you giving it commercial everyday kind of use?
10-29-2013 09:33 PM
xymotic
Re: welding and welder options

Quote:
Originally Posted by Lou452 View Post
xymotic You could find a night school. Lots of times they have 6-12 week classes from say 6:00pm -9:00pm two or three nights a week. Kind of lose instruction with lots of home projects going on. You will get to use a few different welders can't beat that.
Good day, Lou
I've actually looked, completely without success in Seattle and Tacoma.
The only classes I've found were full on 20 week courses like 3 days a week so you can end up being a pipe-fitter. Way overkill for what I need.
10-28-2013 01:40 AM
Brent Swain
Re: welding and welder options

My dodge alternator is pretty small, less than the size of a six pack of beer.150 amp alternators are not much bigger. Nice to be able to fabricate anything I need, out of scrap stainless, anywhwere , on board, while at anchor.
10-27-2013 10:46 PM
Daydreamer22
Re: welding and welder options

Check out the Ready Welder. I use one on my service truck. It's a 24v DC Mig spool gun. Power is from two deep cycle batteries, or three for more heat. Uses shielded wire or plain wire with a co2 bottle. Can do SS or AL with proper wire and gas mix. Gun and cables fit into a briefcase. Welding time varies with battery condition. Took a couple days to weld up a frame for the dump bed on a pickup truck, discharging and recharging batteries. Fixing brackets and other small projects can be done right away.
I took a welding class at our local Community College.
Best wishes however you go.
10-27-2013 06:06 PM
Lou452
Re: welding and welder options

xymotic You could find a night school. Lots of times they have 6-12 week classes from say 6:00pm -9:00pm two or three nights a week. Kind of lose instruction with lots of home projects going on. You will get to use a few different welders can't beat that.
Good day, Lou
10-27-2013 05:55 PM
Lou452
Re: welding and welder options

Brent I would sure like to try your set up. It sounds very interesting ! I have not seen this. I wonder if you could rig a foot pedal for a tig rig ?
I once worked with a mechanic and we tacked a small emergency repair with a bank of batteries it was not pretty or quality work but it was like innovative !
You can also charge batteries and jump start engines This has a lot of danger ! I saw a battery blow up. You just do not do that kind of stuff any more.
Good day, Lou 452
10-27-2013 05:35 PM
Lou452
Re: welding and welder options

I have always thought I might try using the welder as the boats inboard engine ? If I ever get a big boat. They have 2- 4 and 6 cly gas or diesel air and water cooled. I would think adding a pto for the prop a gear box for reverse, and a throttle control is all one might need ? You would use less space than having an inboard engine and large welder on the boat. I have not seen or heard of any one doing this. Seems like you would have a lot of extra power generation ?
The small toaster size welders have come a long way from past years. Some are very capable of making x-ray welds. They will burn 3/32 7018 with 110 voltage at a normal pace. You can max them out.. kick the breaker if you push but with a large 100 power cord they do a good job. 1/8 rod is to much for the suitcase welders I have seen. Light easy to use. When you plug them in they know if they are using 110 or 220 Smart machines !
The thing I do not like to see is a machine that would not even be a good battery charger giving a new person the idea that welding is not something they are capable of doing !
Just please everyone remember water and electricity bad ! I will check again Monday if I remember. I think the safety men said 21 mill a volts can kill. I have had some good jolts with just sweaty Tig gloves. My fitter will keep two or three pair of gloves on a humid 85 + degree day . Wet and welding not good. Some where out there is an Underwater welder ? You are looking to work near a water hazard. It is done but lets plan to be as safe as we can be doing it.
I just have a Catalina-22 so my plan is to weld at work and sail on the water.
I am enjoying this thread !
Good day , Lou 452
10-27-2013 02:08 PM
Brent Swain
Re: welding and welder options

Yes , you can tell by the look of it if it is too hot or too cold, as most welders do. Slow the engine down or speed it up, as needed. For beginners ,start on the hot side.
10-27-2013 02:54 AM
xymotic
Re: welding and welder options

Quote:
Originally Posted by Brent Swain View Post
I use a 100 amp dodge alternator, which I paid $25 for in an auto wreckers , driven by a 10 inch pulley off my main engine.I feed the field from the staring battery ,thru a toggle switch and a 50 watt 12 volt car headlight bulb, to reduce the input to something which wont fry the field windings. To avoid frying the diodes, I put a 120 volt, 60 amp light bulb betweeen the negative and positive output.
You need a lot of RPM , hence the 10 inch pulley. I once had a commercialy buiult welder which used a 3800 rpm wisconsin gas engne and still a 10 ich pulley. That was a lot of RPM! I control the output with the throttle.
I find I get about three years out of the internal diodes which come with the alternator. When they go, I use a much bigger set of external diodes in aluminiumn plates as heat sinks , which never get warm. Dont have the numbers with me at the moment ,but they are common. I have only done, stainless, steel and aluminiumn stick welding with it, but I understand the high frequency of this setup may work well with TIG or MIG.
I have built several anchor winches and stainless woodstoves with it , from scratch, in my cockpit ,while at anchor. The output from it also runs my 120 volt angle grinder and other 120 volt power tools.
I couldn't fit it in my engine compartment, so I made a removable panel on the side of the engine compartment to run a V belt thru, and mounted the alternator outside the engine compartment. I also mount my watermaker pump there.
Thanks Brent, I have considered it. One thing I really like about the premier power unit is that they've wired in a switch to flip between regular charging and welding. I know this crap ain't rocket surgery but I have no clue how they do that.

But also, how do you adjust it when you're welding? Just seat of your pants looking at the beads? I'm still a total newb and can't really tell what I'm doing yet. Definitely need some classes just don't want to go for a year to be a commercial welder
10-27-2013 12:17 AM
Brent Swain
Re: welding and welder options

I use a 100 amp dodge alternator, which I paid $25 for in an auto wreckers , driven by a 10 inch pulley off my main engine.I feed the field from the staring battery ,thru a toggle switch and a 50 watt 12 volt car headlight bulb, to reduce the input to something which wont fry the field windings. To avoid frying the diodes, I put a 120 volt, 60 amp light bulb betweeen the negative and positive output.
You need a lot of RPM , hence the 10 inch pulley. I once had a commercialy buiult welder which used a 3800 rpm wisconsin gas engne and still a 10 ich pulley. That was a lot of RPM! I control the output with the throttle.
I find I get about three years out of the internal diodes which come with the alternator. When they go, I use a much bigger set of external diodes in aluminiumn plates as heat sinks , which never get warm. Dont have the numbers with me at the moment ,but they are common. I have only done, stainless, steel and aluminiumn stick welding with it, but I understand the high frequency of this setup may work well with TIG or MIG.
I have built several anchor winches and stainless woodstoves with it , from scratch, in my cockpit ,while at anchor. The output from it also runs my 120 volt angle grinder and other 120 volt power tools.
I couldn't fit it in my engine compartment, so I made a removeable panel on the side of the engine compartment to run a V belt thru, and mounted the alternator outside the engine compartment. I also mount my watermaker pump there.
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