6x6 forwarder - videos

[Jon]

6x6 forwarder. By Donn DIY.

19:10 video:

15:12 video:

15:07 video:

[Jon]

Part 4. By Donn DIY. 22:56 video:

[Jon]

Parts 5-7. By Donn DIY.

14:38 video:

20:34 video:

16:50 video:

[Jon]

Part 8. By Donn DIY. 26:02 video:

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For anyone that has a need of a brand new CV axle shaft assembly, to salvage this, go to ebay, and search for "CV axle shaft assembly" modify, but for the cost of the free shipping you can have two CV joints for less then $20UDS (in quantities that exceed 10). Auto parts stores clear out old stock that's not selling. They FedEx for free, less then 4 day delivery. It's crazy.
The spline end that slides into the transmission differential, that's a short stub into the bearing that hold's the radial forces that the suspension system and steering knuckle impart. How does that work?

I've only torn apart baby cars that use these axles and front wheel drive, with 3cyl 1liter engines (87 Suzuki Justi, rebadged as a Chevy Sprint, and a 98 Chevy Metro, made in Canada with a very crappy version of that 87 design, going from carburetor to throttle body injection, and fuel mileage went from 57 to 42MPG, but weight of 3doorhatback went from 1400lbs to 2200lbs). I scrapped the cars from Iowa salt winter rustout. But I recall just pulling hard to pull them from the transaxle.

I'm trying to think of ways to hold that, as it exceeds my 80mm headstock thru hole on my tiny big lathe. I can use a cut off saw, to cut into parts that can be held, but I'm thinking keeping the two

[Jon]

Part 9. By Donn DIY. 20:05 video:

[Jon]

Part 11. By Donn DIY.

23:40 video:

[Jon]

Part 12. By Donn DIY. 23:36 video:

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It's interesting to see his progress in making a commercial quality machine, with what appears to be skills he has from previous experience, and no drawings. I like that a lot.
I'm curious to see how his repurposed CV axle joint works under high torque and articulated angle of the machine. I think he kept the center of rotation of the joint with the pivot of the machine.

I say that, as I've seen other youtube vid's of making AWD autos with repurposed transaxles, differentials and require large swing movements relative to the center of rotation. Fiat has long travel versions that I saw in one video. But to me, that's for a 4 bar link that has wrong geometry. But I know nuuuting.

My neighbor has a biz that services motorcycles and ATVs. He has customers that put in lift kits on the front and rear (it's crazy that these toys can cost >$40KUSD), which forces the CV axle to operate at a continuous angle, and from me seeing, it's 25-30 degrees, they overheat. He showed me one that within 40 minutes of driving from new (a 4 door with AC and winter heat), got red hot and split the outer housing. But that's at road speeds. l do see with front wheel drive autos, they are typically zero angle.

I know, it will not be the problem with this machine as subject video, as it's walking speeds. If the center of pivots do not match, I could see that wrapping the joint around the drive shaft.

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You got to be a good fabricator and welder to trust making a wider rim, and pressurizing it to 4bar, and trust that it does not kill you. Very impressed with his skill.