What did you do today?

[Willy]

made a new motor mount for my lathe


cut up a truck stub axle I found at the side of the road on the way home


cut up the spline section to get a piece of metal out for making a pen knife. Cost about 3x the amount in $ and time compared with using O1, but what a story!


got the chunk milled down to roughly the right thickness and found all the other bits I'll need

I think what you have there is 1/2 of an inter axle drive shaft, the drive shaft that connects the two driving axles on a tandem drive truck.

Not necessarily hard but a very tough forging. Good durable knife when you're done I'd bet.

[true temper]

[QUOTE=Willy;1225452]I think what you have there is 1/2 of an inter axle drive shaft, the drive shaft that connects the two driving axles on a tandem drive truck.

Yeah some poor SOB had to lock his power divider to get home. Then explain to boss why he is stuck all the time.

[Willy]

[QUOTE=true temper;1225455]

I think what you have there is 1/2 of an inter axle drive shaft, the drive shaft that connects the two driving axles on a tandem drive truck.

Yeah some poor SOB had to lock his power divider to get home. Then explain to boss why he is stuck all the time.

Ha Ha Ha
What the hell is that noise!? As the front half flops around whacking the rear suspension mercilessly.
Hopefully it just fell out of a pickup box, ya just don't drop one of those without a very interesting (expensive) story to go with it. Can't quite tell but one of the ears on the yoke looks like it's been tickled a bit.

[true temper]

See penknife thread. Dump truck on side of road after the drive shaft find.

[CCWKen]

That saw moving around as in the video would drive me crazy. I like the machine to be steady.

The saw cuts about as fast as my Atlas H/V bandsaw does, in other words, about 1/3 as fast as I would like it to.

That's gotta be the wrong blade or something. Pushing that saw around the shop like that is dangerous. If it's not cutting, don't push it. My Craftsman will cut a piece of aluminum that size in about 10 seconds or less. It's a hungry son of a gun. I use it for wood and aluminum. My new Wen chinesium metal band saw would cut that 3/16 piece in less than a minute. I cut a piece of 1/2 x 2" flat in about 3 minutes. Cut a piece off a 1 x 1" in about the same amount of time. I'm running a bi-metal 8/12 blade at 120fpm with mister coolant. I might try a 6/10 blade if I can find one. Or just run the 8/12 faster.

[wierdscience]

Heat treated the T-bolts and Toolpost nuts for the lathe project today.SAE 1045,bagged in stainless foil with a wad of paper inside to consume the remaining oxygen.Heated to 1525*F and held for an hour before quenching in soap water.Tempered at 700*F for one hour before oven off to cool down overnight.No hardness tester,but a file just barely marks it.

[mattthemuppet]

ooh, very pretty! Must be pretty neat to have a heat treating oven to use.

Willy - thanks for the info! It was pretty big - the non-splined part of the shaft is a wee bit over 2" diameter and hard stuff. A file would touch it but it took a bunch of teeth off my bandsaw blade, even at the slowest band speed, only just enough pressure to cut and lots of cutting oil. It cut ok on the mill with a carbide endmill, but lots of blue/brown chips even at a relatively low speed and DOC (3/8" 4 flute, 600rpm).

True temper - I found it just before a bridge over a railway track and the dump truck was about 1/2mile after the bridge on the verge. Driver was wandering round the dump truck looking underneath it. Both the ears are worn and one of them is ripped out. I was worried that he'd see it on my bike rack and come chasing after me for it

[wierdscience]

ooh, very pretty! Must be pretty neat to have a heat treating oven to use.

You should build one,a few fire bricks,some NiChrome wire and a cheap Ebay PID control and you could anneal those driveline componets for easy cutting.

[mattthemuppet]

oh boy, don't get me started. I've already run out of space on the whiteboard for projects A belt sander is moving up the list though...

[Dan Dubeau]

oh boy, don't get me started. I've already run out of space on the whiteboard for projects A belt sander is moving up the list though...

Sounds like you need to make a bigger whiteboard first

[true temper]

True temper - I found it just before a bridge over a railway track and the dump truck was about 1/2mile after the bridge on the verge. Driver was wandering round the dump truck looking underneath it. Both the ears are worn and one of them is ripped out. I was worried that he'd see it on my bike rack and come chasing after me for it [/QUOTE]

That’s funny, the driver wasn’t paying attention. Those big drive lines have a pretty good viberation before they come apart.
Can’t chase you down with the other half banging around.

“HEY that kid has my driveline”

[Willy]

Heat treated the T-bolts and Toolpost nuts for the lathe project today.SAE 1045,bagged in stainless foil with a wad of paper inside to consume the remaining oxygen.Heated to 1525*F and held for an hour before quenching in soap water.Tempered at 700*F for one hour before oven off to cool down overnight.No hardness tester,but a file just barely marks it.

Looks good! Those parts will probably last longer than the two of us. LOL

Damn, going to have to push the pizza oven up a notch or two on my priority list, too many times I've put it off. I need it.
Nice to have verifiable and repeatable heat treat results.

[Willy]

ooh, very pretty! Must be pretty neat to have a heat treating oven to use.

Willy - thanks for the info! It was pretty big - the non-splined part of the shaft is a wee bit over 2" diameter and hard stuff. A file would touch it but it took a bunch of teeth off my bandsaw blade, even at the slowest band speed, only just enough pressure to cut and lots of cutting oil. It cut ok on the mill with a carbide endmill, but lots of blue/brown chips even at a relatively low speed and DOC (3/8" 4 flute, 600rpm).

True temper - I found it just before a bridge over a railway track and the dump truck was about 1/2mile after the bridge on the verge. Driver was wandering round the dump truck looking underneath it. Both the ears are worn and one of them is ripped out. I was worried that he'd see it on my bike rack and come chasing after me for it

Damn, that's a heavy piece to be packing on a bike. Good piece of tough steel though!
Doesn't sound like buddy in the dump truck needs it for his truck anymore, it's toast as far as being usable for that. Not sure what his maintenance or pre-trip inspections consisted of but I hope for the sake of others he changes his line of work before you find a steering box on the side of the road.

[754]

Willy , long time ago I bought a Gear Hobbing machine at an auction in KAMLOOPS. . Across from McDonalds.
Sold it a while later to the motorcycle sprocket guy in Vancouver.
We set out in my buddies crane truck to deliver it.
Coming down the hill to the Coldwater River west of Merritt, there was a big crunch and some whirring noise.
We coasted down to the off ramp and parked by the creek.
It was the shaft or bearings to the second diff, I think we tore the diff open.

We were there most of the day till Miltons Towing arrived to slowly pull us back to Kelowna.

While we were there we did not see anyone on a bike with a spare shaft...

[RB211]

Ordered some different types of "Rutan Cloth" from Aircraft Spruce, epoxy, hardener, nichrome wire, micro balloons, flox, and maybe a couple of other items. Downloaded Rutans construction book, and watched his video. Going to start playing around with composite construction techniques.
The crazy idea in my head is to eventually build a turbine powered ME262 to "Top Gun" quality competition standards using composite techniques, and machined accessories, like wheels, guns, cockpit elements, mechanics for flight control, landing gear, etc