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Lightweight vent panel and bulkhead build


Stellaghost

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2 hours ago, Anderzander said:

I think there is more involved than that 😀

Okay a few more years head start. Once you've got a big scrap pile the world is your oyster as you can build what you want.

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8 hours ago, smallfry said:

 

Have you got to do it all again for the other side ?

No the formers will cater for both sides just have to position the aluminium differently, as always the formers are the more difficult bits to make, I could churn out the hinge panels relatively quickly now regards Stephen

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1 hour ago, steve b said:

Very nice work again Stephen :i-m_so_happy:

Steve

Thanks Steve

They were relatively easy to form especially when taking in the lessons I learnt from the vent panel build. I had a slight concern with depth of press as this was 25mm where as vent panel was 15mm, but happily it's turned out well and as @smallfry said a few coats of NATO green will make all the difference regards Stephen

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1 hour ago, Bowie69 said:

Lovely work, rest is almost box section and sheet, isn't it?

Thanks

It's U section to be precise of which I happen to have, I will be looking to inlay box section into it in certain areas to add strength, the rest is flat, folded sections and boxes. The only other tricky bit will be the curved flange for gearbox tunnel but shrinker and stretcher will help me out there regards Stephen

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My scrap U section, two wins with this, first is it got scrapped and secondly I didn't weigh it in a few months ago because I thought about it, phew!!

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Cleaned up a bit

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Box section fits in perfectly for areas I want to beef up

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Tried hinge panel on, will do the job nicely regards Stephen 

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1 hour ago, Stellaghost said:

My scrap U section, two wins with this, first is it got scrapped and secondly I didn't weigh it in a few months ago because I thought about it, phew!!

20220719_083522.thumb.jpg.4912a1b8886895b77adfc9272a8b6b97.jpg

Cleaned up a bit

 

Box section fits in perfectly for areas I want to beef up

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Tried hinge panel on, will do the job nicely regards Stephen 

 

With this one - by mindful of how you plan to "tie" the center piece into the U channel - from a structural perspective it wont have much strength unless you fix it rather well at both ends.

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22 minutes ago, Maverik said:

With this one - by mindful of how you plan to "tie" the center piece into the U channel - from a structural perspective it wont have much strength unless you fix it rather well at both ends.

My plan was to tig weld it at end I can fully get to and then tig weld it across full length on both sides, I could also add a couple of puddle welds regards Stephen 

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2 hours ago, Stellaghost said:

Lol

Existing steelwork is 3mm so 2mm box would not be strong enough me thinks regards Stephen 

Was wondering how strong the bulkhead needs to be...? Maybe I am getting influenced by my recent purchase.....

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37 minutes ago, Bowie69 said:

Was wondering how strong the bulkhead needs to be...? Maybe I am getting influenced by my recent purchase.....

I'm figuring it needs to be strong enough to withstand the odd jolt also aluminium work hardens and can crack easier than duralumin also I remember seeing an ex navy 80" ( I think ) years ago and it had an aluminium bulkhead from factory, the parts I could see were around 1 /4" thick, I may have to make an external roll cage to help protect bulkhead once finished regards Stephen

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Just arrived in the post some 45mm solid round aluminium bar, going to use this for the chassis mounting point, will drill for bolt size and drill box to take full diameter, that should give me plenty of area to tighten up to regards Stephen 

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24 minutes ago, Stellaghost said:

I'm figuring it needs to be strong enough to withstand the odd jolt also aluminium work hardens and can crack easier than duralumin also I remember seeing an ex navy 80" ( I think ) years ago and it had an aluminium bulkhead from factory, the parts I could see were around 1 /4" thick, I may have to make an external roll cage to help protect bulkhead once finished regards Stephen

I remember reading that LR did produce a few trucks with Alu bulkheads not sure if they where S1 or S2's.

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20 minutes ago, Maverik said:

I remember reading that LR did produce a few trucks with Alu bulkheads not sure if they where S1 or S2's.

Seems it was Series 1, apparently the press for the steel bulkheads broke and they handmade aluminium ones as a stop gap.

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21 minutes ago, CwazyWabbit said:

Seems it was Series 1, apparently the press for the steel bulkheads broke and they handmade aluminium ones as a stop gap.

I seem to think the first few prototypes had aluminium bulkheads as well?

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1 hour ago, Stellaghost said:

Just arrived in the post some 45mm solid round aluminium bar, going to use this for the chassis mounting point, will drill for bolt size and drill box to take full diameter, that should give me plenty of area to tighten up to regards Stephen 

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Are you going to do a trick with the knife and cut it in two (careful video editing needed!)

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Some sections cut for my bulkhead and bulkhead to chassis bushes made however ran out of gas so temporarily stalled

U section cut and drilled

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Front panel

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Bushes made

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Started tigging

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And ran out of gas !

Oh well not to worry regards Stephen 

 

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I hate running out of gas. I started stocking a 2nd bottle for the big projects, - I hate having an unplanned stoppage. 

I bought a lovely tig machine just before I moved house, and its been in storage the past 2 years, rather hankering to have a space to play again, I love metal gluing. 

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5 hours ago, Maverik said:

I hate running out of gas. I started stocking a 2nd bottle for the big projects, - I hate having an unplanned stoppage. 

I bought a lovely tig machine just before I moved house, and its been in storage the past 2 years, rather hankering to have a space to play again, I love metal gluing. 

This is my plan. Keeping an eye out on Facebook for a second cylinder. MIG isn't a problem as I go through it so slowly, but also I can steal a mates from from the opposite unit if I get stuck. Sadly he's not got any pure argon.

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