Keith,
when all's said and done, that's the statistic which matters.
Hope my record is as good, almost 20 years since the first one went on the road and I'm still waiting... ;)
Keith,
are you suggesting that the current Chevy pickup is of monocoque construction?
Doesn't look like it here, more like what they'd probably call 'body on frame' ( 3" x 6" x 1/4" box section?) in the USA, comparing the chassis depth to its 17"wheels.
Have to agree that plenty of...
Fantastique!
Maybe a hidden set of speakers, an (imaginary) Hamlet and this to celebrate...
http://www.youtube.com/watch?v=EPrKqbctx8U
or this. ;)
http://www.youtube.com/watch?v=fKxmSe5s9_s
Ken
steve,
17 years since my operation for a detached retina ( courtesy of a roller shutter door being dropped on my head by one of the clowns I was working with at the time :( )
That eye is still fine, but old age (and those pesky genes) have done their usual, so Specsavers have told me it's...
Norm,
that rig must have been very finely balanced if transferring a few kilos of wire rope onto the jib from the drum was enough to trigger failure.
On the other hand, if the driver made the mistake of lowering the jib even by a fraction of a degree, that would have had more effect on the...
Depends on the weight of the piano, whether or not you're planning to have a single screw for each leg or using a plate with a group of fasteners.
Also whether or not there may be any of this going on... ;)
But M10 should do the job for a static setup, I'd have thought.
Ken
chunkolini,
for my sins, I've used rather a lot of captive nuts on galvanized chassis, counted in thousands not hundreds. :(
You'll find that post-galvanizing, any hole less than about 10mm diameter is likely to be full of zinc and even threads such as M14 x 1.5 benefit from a tickle with the...
Keith,
aye, it's that blooming Young's modulus (stress/strain), which is the problem.
For steel, it's only 29,000,000 lbf/in², but if it was the same as something like a diamond at 175,000,000 lbf/in², a designer's life might be simpler.
Although brittle failure could well be an even bigger...
Keith,
I think you've put the cart before the horse, as one of the aims of bridge design is to minimise the deflection which inevitably occurs under dead, live and wind loading.
Modern suspension or cable-stayed bridges have stiff deck structures and streamlined profile for that reason...
Normspanners,
I've no idea where you got the idea that bodyshells of passenger vehicles are designed to flex, when most manufacturers nowadays are using everything in their power, including computer aided design and high tensile steel, to ensure the exact opposite.
As an example, for the...
Since the original discussion was about passenger cars, not wagons, I guess it depends on whether you consider safe, predictable handling to be a priority.
Chassis flex is undamped suspension movement, after all.
They say that a picture is worth a thousand words, so here are some moving...
Grim-D & langy,
I'm with pedrobedro on this one, in fact I'd use the quote that 'there's no such thing as a chassis which is too stiff', with the exception being those offroaders where (primitive?) leaf spring suspension may need the chassis to make up for any shortcomings in the suspension...
Luke and TIG Paul,
part found and now refitted good 'n tight where it belongs.
Looking forward to some stress-free welding tomorrow ( and reduced bills from Energas in future.)
Many thanks to both of you for such excellent advice ... :clapping:
Ken
Nope,
that's as it was when I first got it...
If that's always been awol, would that explain heavy gas bills? :(
Ken.
( Just realised that this evening when I was having a good look at the part of the connector/socket which is fastened to the machine, I could see a female thread in...
Hi Luke,
just taken a photograph of the machine end of the lead, as it's on the kitchen table ready to be taken to pieces anyway.
2 O rings visible, one on the gas feed and one on the end of the liner.
That tapered recess on the liner contacts a brass tube with a matching end, held into the...
Luke,
it's where the wire feed motor/torch attachment bracket is fastened to the case.
If I put a lit lighter near there and pull the torch trigger, the flame is immediately extinguished by the rush of gas escaping back into the case.
If I disconnected the whole assembly from the machine...
On my 211, I've had a problem with gas escaping back into the machine rather than arriving at the 'business end' of the torch.
Recently, it's got worse, to the extent that even with the regulator cranked right up and showing almost 30 l/min on the gauge, the gas flow tester registers 'zero'...