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Reload this Page Mini Dozer Idea Factory (potential build)
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  #1  
Old 03-23-2021, 02:51 AM
Bryan S Bryan S is offline
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Originally Posted by sawdustdad View Post
Moving the extant discussion from the mini motor grader thread. The last couple discussions were how to arrange two cub axles to drive them from a single engine when the engine is between the two axles.
Cool, can't wait to see that.
Off the top of my head,
no real "think it out"
but some sort of transfer case (homemade chain/gear, carrier bearing set-up),
or from an old (dare I say it) Suzuki 4X4. Some of the very early
ones were 2-strokes and then they went to 3 cylinders IIRC.
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  #2  
Old 03-23-2021, 08:55 AM
Ambush Ambush is offline
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The easiest may be to set it up just like your grader, just with the axles farther apart. Set the engine PTO clutch over top the front axle input and belt drive down. Easy starting. Reverse and forward speeds would remain the same with no mods to the swash plates. I would consider a HP rated centrifugal clutch to replace the original for simplicity and options on belt sizes and dual pulleys.

Would you idle the opposite axles (front left, rear right say) and lock the crown/carrier gear to one axle per end?

Some of your best ideas will pop into your head while fishing. Carry a pencil and pad!
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  #3  
Old 03-23-2021, 11:31 AM
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docmirror docmirror is offline
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Maybe start at the other end of the system, and work backward:

https://www.gccpd.com/product.asp?it...IaAkEFEALw_wcB

Begin with the snowthrower or implement tracks. Find the proper rear drive hub, and idler hub, and tension arm hub. Then one only needs to drive the rear hub with the takeup tensioner arm hub on top of the track. No need to drive both axles on a tracked drive setup(although some do, it's not really needed).

If the front hubs can be on spindles, they don't even need to be on a through axle. Will allow the front driveshaft to mate to the PTO with a UJ.
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Old 03-23-2021, 01:26 PM
DRohacek DRohacek is offline
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Sure would be nice to use an old drive system from a zero turn mower. Just mount it all in a Cub Cadet frame of your choosing. Each track will have its own wheel motor. Build your track system and done!
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  #5  
Old 03-24-2021, 06:40 PM
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sawdustdad sawdustdad is offline
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Sure would be nice to use an old drive system from a zero turn mower. Just mount it all in a Cub Cadet frame of your choosing. Each track will have its own wheel motor. Build your track system and done!
Thought about that. But I have all the Cub parts lying around...just itching to be repurposed. Plus, I like the idea of the extra mass and ruggedness of the cast iron stuff...
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Old 03-25-2021, 03:37 AM
DRohacek DRohacek is offline
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Thought about that. But I have all the Cub parts lying around...just itching to be repurposed. Plus, I like the idea of the extra mass and ruggedness of the cast iron stuff...
Understood. I thought you would say that! I'm with you.
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Old 03-24-2021, 07:02 PM
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sawdustdad sawdustdad is offline
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Originally Posted by docmirror View Post
Maybe start at the other end of the system, and work backward:

https://www.gccpd.com/product.asp?it...IaAkEFEALw_wcB

Begin with the snowthrower or implement tracks. Find the proper rear drive hub, and idler hub, and tension arm hub. Then one only needs to drive the rear hub with the takeup tensioner arm hub on top of the track. No need to drive both axles on a tracked drive setup(although some do, it's not really needed).

If the front hubs can be on spindles, they don't even need to be on a through axle. Will allow the front driveshaft to mate to the PTO with a UJ.
I thought both tracks had to be driven independently to steer?

I'm considering buying tracks vs fabbing them from steel. Looking at maybe buying a CNC plasma cutter. Langmuir makes some pretty reasonable.

Steel tracks lend authenticity for that scale appearance.
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Old 03-24-2021, 08:14 PM
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For my job I am quite often at rental stores.

I have always thought that finding a used beat up cement buggy would be a great start for a dozer build
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  #9  
Old 03-24-2021, 08:31 PM
Ambush Ambush is offline
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You might just as well make two undercarriages while you're at it.

You know you need an excavator too. And the ring gear is no problem now after the grader build.
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  #10  
Old 03-24-2021, 09:00 PM
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I would just find the dead chassis of a tracked snow thrower. Unbolt the side plates, and all the guts that drive the tracks. Bolt the side plates to whatever frame is chosen, and then build the drive with a diff, and short chains to each side. Maybe put a disk pinch brake on each side of the hubs to steer.

No sense re-inventing the wheel as there are already tracked machines out there to steal from.

https://www.partstree.com/models/269...rack-drive-22/

Side-plates, hubs, drive asm, tracks, track-drive all the guts needed. Just find one with a thrashed engine, and have at.
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