I'm planning the engine cradle extension for the blower and have a simple question- if I'm building the cradle out of 25*25 box what do I do to seal the end? I don't fancy cutting out little square pieces to weld onto the end- are there weldable end caps available already that you just push in a weld round the edges? What's the locost(tm) option???
TIA!

push in plastic ones ?

Same as found on office furniture all over the country ?

Ahem...........

You ain't seen nothin', right ?

I tried them but they kept on melting when I went to weld them

I just got some 1" strip and cut a bit oversize with tin snips - hold in place with magnet and tack then weld - then angry grinder with flap disc to size - as long as you get good penetration (ooer missus) of the weld you get a very neat end closure.

hi ben where's you photo gone?

see here
http://www.componentforce.com/en/index.php?pagecode=productcategory&id=1&gclid=CK_61MWM3pQCFQKHlAod5hUVRQ

ad here (it say's free samples so you could ask them to send you half a dozon!)

True Bargain price too.....
Still fancy some metal ones. Looks like I'll just be cutting them out....

I cut squares out and welded them in - held them in place with a magnet, tacked them, then welded up. Easy.

Okay!! I was being lazy

better value

http://www.towsure.com/category/7229-End_Blanking_Caps_(Black_Plastic)

So what's the plan with the plastic ones then? Just epoxy them in or something? Doesn't seem quite as fool-proof as snotting them in place....

I cut the RHS 1" longer than I need, then cut the excess to form a "flap" which I bend over and weld on three sides.

quote:

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Originally posted by David Jenkins
I cut squares out and welded them in - held them in place with a magnet, tacked them, then welded up. Easy.

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Take a four pack of beer along to a metal fab shop on a Saturday morning and ask one of the guys to plop some out on the guillatine. Less than a minutes work.

quote:

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Originally posted by owelly
Take a four pack of beer along to a metal fab shop on a Saturday morning and ask one of the guys to plop some out on the guillatine. Less than a minutes work.

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i'd cut some squares slightly smaller than 25mm square say the outside box section size minus 1 wall thickness to leave room for some penetration,i'll send some out if you want regards wayno!!

quote:

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Originally posted by David Jenkins
I cut squares out and welded them in - held them in place with a magnet, tacked them, then welded up. Easy.

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quote:

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Originally posted by Echidna

quote:

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Originally posted by David Jenkins
I cut squares out and welded them in - held them in place with a magnet, tacked them, then welded up. Easy.

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The same for me too. Very good fit!

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Or you could always crush the end of the tube and fold it over......