Thread: Mini jetboats with Jetski engines

You've obviously never tied to seam weld 3mm alloy with a mig nicely

How about a flat pack and some beers for a perky @veitnamcam ?

Originally Posted by Spanners

You've obviously never tied to seam weld 3mm alloy with a mig nicely

How about a flat pack and some beers for a perky @veitnamcam ?

I dont really want to cant really perk after hours cos gotta get home so wife can go to work and weekends is kids or hunting.

step one, buy a cheap arse mig and a bottle of argon.
step two, buy a roll of 1.2mm alloy wire(might get away with 1.0 mm but will have to be real carefull to keep the lead fairly straight)
step three stick it together and practice on some scraps.
step four weld the bugger up.

I do 90% of our alloy mig welding with a cheap 180?amp single phase mig welder. got to be a wee bit carfull to keep the lead straightish not having a pull hand peice but its all good, only get the miller pulse pushmepullyou big clumsy prick of a thing out when I have to.

Originally Posted by veitnamcam

I dont really want to cant really perk after hours cos gotta get home so wife can go to work and weekends is kids or hunting.

step one, buy a cheap arse mig and a bottle of argon.
step two, buy a roll of 1.2mm alloy wire(might get away with 1.0 mm but will have to be real carefull to keep the lead fairly straight)
step three stick it together and practice on some scraps.
step four weld the bugger up.

I do 90% of our alloy mig welding with a cheap 180?amp single phase mig welder. got to be a wee bit carfull to keep the lead straightish not having a pull hand peice but its all good, only get the miller pulse pushmepullyou big clumsy prick of a thing out when I have to.

But the Miller sounds so much nicer

Looks like every man and his dog are fabricating the mini jetboats


U groove rollers, teflon liner and oversize tip. 3m lead better than 4m. Smaller MIGs are fine but a bit harder to setup as they don't have 1/2 volts increments.
Pulse MIGs rock

Originally Posted by veitnamcam

I do 90% of our alloy mig welding with a cheap 180?amp single phase mig welder. got to be a wee bit carfull to keep the lead straightish not having a pull hand peice but its all good, only get the miller pulse pushmepullyou big clumsy prick of a thing out when I have to.

I just got a little 150 amp mig from repco. Its got a plastic liner and says ok for 1.6 too 3mm ali so i will hav a wack at it and report back.

Originally Posted by mohawk

I just got a little 150 amp mig from repco. Its got a plastic liner and says ok for 1.6 too 3mm ali so i will hav a wack at it and report back.

Ali is soft. Using the V groove rollers will put "ears" along the wire and will constantly jam. Knurled rollers are for gasless wire. Straight Argon, not mixed or CO2. S/S wire brush, not mild steel as it will contaminate the ali with iron oxides
I used to sell the gear. VC will tell you the realities of the processs

Originally Posted by sako75

Looks like every man and his dog are fabricating the mini jetboats


U groove rollers, teflon liner and oversize tip. 3m lead better than 4m. Smaller MIGs are fine but a bit harder to setup as they don't have 1/2 volts increments.
Pulse MIGs rock

Mint . Repco welder came witb plastic liner and all i did was run a file aroun the roller to smooth off tbe groove. We had no feedin issues at all and my boat builder said no worries basting 3 too 5 mm with it. He was quite surrprised actually.

Originally Posted by Spanners

You've obviously never tied to seam weld 3mm alloy with a mig nicely

How about a flat pack and some beers for a perky @veitnamcam ?

Why did I get tag from this ancient post today @Spanners ?

Originally Posted by veitnamcam

Why did I get tag from this ancient post today @Spanners ?

Fuck knows?


Sent from my iPhone using Tapatalk

Off to see Tui at M&G morrow hopefully

How about during work hrs??
What's smoko worth for the next month ?

Surely someone in welly can weld?

Yeah .. I can to... It's just a time thing.
Finished boat is prob the best idea I think

Yep time,mans greatest enemy

I'll get ya some pics if you like when i go past M&G tomorrow.