1948 Triumph Roadster Supercharged plus other stuff…

I’ve worked out a plan with the extraction.

First off, the air inlet side.
When I built the booth, I made this contraption. It’s an air filter.
It’s really just a 44 gallon drum cut into 3, and separated. Then two pieces of 1” mesh wrapped around between them. The whole thing is covered with filter material.
It’s gone red because it was parked too near the door on one spray job. Proves it works though.
The yellow extraction fan sucks air through the filter and blows clean air into the booth.





I’m going to add another fan to it.
First I cut out this.






Another in mirror image, plus some hammering.





They go together thusly.





Rolled a cylinder to fit in the extraction fan.






And welded it all together.





It gets bolted to the top piece of the drum that forms the top of the filter.






It will get a piece of sheet pop riveted to it after I’ve cut all the big bits out of the sheet.

The big bits are needed to make the ducting for the extraction side.
I started with a bit of cardboard.






That will be the base of the duct that goes from the bottom of the back wall/shelves to the outside. The idea is that the filtered air will be pumped in at the top of the front wall and extracted at the bottom of the rear. My version of a downdraft.

Copied into gal sheet. And some flanges added.






It’s now beer o’clock on Friday.

Thanks.

Jimi, the small fans are 25 whatevers and the big ones are 60.
The idea is to have just a bit of positive pressure in the booth, so dust etc isn’t sucked in.
The booth isn’t 100% sealed by any measure. So I have a 60 plus a 25 on the inlet side and a 60 on the extraction. And the inlet has the restriction of the filter.


As you have seen, the first piece of the extraction duct.





Now if I was clever, I would have made an outline of this before I tipped the flanges.
But I didn’t, so I had to trace the shape after, and that is not as easy, or accurate.
No matter, a bit of adjustment here and there and I got it close enough.
Top and bottom clamped together.





And after some pop rivets, no clamps. I love how floppy bits of thin sheet become very rigid when joined together.





And with a few more big long, folded bits riveted to it, that’s the best part of a days work. I did get a late start though…


Just realised that it wasn’t riveted in that photo, but rest assured it was before I finished for the day!

Thanks.

It really makes me appreciate how lucky I am to have this, when I see what some of you guys work in. Often in much harsher weather than we have as well.
Mind you it does get filthy hot here, and I’m envious of how you lot seem to have lots of car shows/events/ whatever fairly close by.
But I’m a bit of a hermit, so swings and roundabouts eh?

More duct making.

The big bend.
Started with the sides. Cut the piece then tipped the flanges with the bead roller.





In that pic the shrinker had been used on the outside flange and the stretcher is about to be used on the inside one.

Then, once I’d gotten it to lay flat, riveted the outer curve piece in place.







I remembered to trace the first curve before making the flange this time. That made it a lot easier to make a reasonably close mirror image.
Here it’s clamped together, ready for riveting.






And test fitting in place.







Now need to make something to connect the fan to it and duct it outside.

Thanks.

With such a large surface area, won't take much to make them bulge I'm sure it will be fine 👍
If necessary it wouldn't be hard to restrict the exhaust side slightly (adjustable damper ?) to make it positive. I'm sure you have already have some adjustment ideas in mind

Nice job on the ducting, do you think it will need any stiffening ? or is the sheet metal thick enough ?

Not quite finished.

But the extraction and filtered inlet are in and complete.








Just a few finishing jobs to do.


Thanks.

Looks the business 👍 looking forward to hearing how it performs 😎

Looks great
Your power consumption must be eye watering with 5 comps running

Did a few hours sandblasting today. The chassis, rear springs, front spring and fuel tank have all been done .
They all need to get a detail blast, once they’ve been gone over and corners dug out and spatter removed.

While I was letting the compressors have a rest, did a bit more on the bracket that I started yesterday.
Got it to fit in between the jig and the chassis but the angle was wrong. Typically it wouldn’t fit till it was finished and you can’t tell if it’s right until it fits.
So I had to add a bit of weld to two opposing corners to get the angle right.
Clamped a piece of copper to it and built it up with mig.









So it’s now finished except for some captive nuts.

Like this, six out of eight were missing.






Almost the same as the ones I had to make for the XK120. So I could use the same press tool.
If you read that thread you might remember this.
Cut out the sheet metal crosses and then press the square into them to form the captivator.
Small change is that I drill the hole after it’s formed. Less distortion that way.
Now I need to make some 5/16 BSF square nuts.






Also went over the chassis with a hammer and chisel knocking off welding spatter and digging grease/tar out of corners.
Talking of welding spatter and the XK, I’d bet good money that this chassis was made by Rubery Owen. The welds are just like those on the XK. Spatter and slag everywhere.

Thanks.