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Thread: Oshkosh P-series 6x6 Truck

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Old 09-12-2013, 12:52 PM   #1
Rock Stacker
 
Join Date: Feb 2012
Location: Israel
Posts: 78
Cool Oshkosh P-series 6x6 Truck

*Decided this build suites this section better.
Hi all,
Last week I gathered some free time and started a new build!
Oshkosh P-series 6x6 Truck.
Well let's get on to the pictures shall we?

Frame starts to take shape

RC  Oshkosh P-series 6x6 Truck

RC  Oshkosh P-series 6x6 Truck

Rear axles are placed on a balance cart suspension

RC  Oshkosh P-series 6x6 Truck

RC  Oshkosh P-series 6x6 Truck

RC  Oshkosh P-series 6x6 Truck

RC  Oshkosh P-series 6x6 Truck

Transfer case and transmission joining in

RC  Oshkosh P-series 6x6 Truck

Front axle!

RC  Oshkosh P-series 6x6 Truck

RC  Oshkosh P-series 6x6 Truck

RC  Oshkosh P-series 6x6 Truck

RC  Oshkosh P-series 6x6 Truck

Flexy flexy

RC  Oshkosh P-series 6x6 Truck

Alright, now some technical details.
  • Transmission- R3 Scale 2 Speed Transmission
  • Wheels- Wheely King Mud Thrashers
  • Transfer Case- Hammer Transfer Case (1.47/1)
  • Axles- Wheely king axles (and driveshafts)
  • Steering servo- Hitec HS-7954SH - High Torque HV Coreless Servo
  • Motor- HPI Wheely King Saturn Motor 27T (Stock)
  • ESC- Wheely King stock
  • Battery- HPI Ni-Cd BATTERY PACK (7.2V 1500mAh)

That's about it. I have not yet mounted a small servo to switch between the transmission gears. I'll get to that soon. And the chassis will be shortened.

I've notices that the battery life is not enough, and the motor is not good for this kind of truck that requires more torque and less speed.
If you have any suggestions for another setup please comment!

Hope you like it so far,
Yorai

Last edited by yoraish; 09-25-2013 at 02:26 PM.
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Old 09-19-2013, 08:59 AM   #2
Pebble Pounder
 
Join Date: Jan 2011
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Default Re: Oshkosh P-series 6x6 Truck

This is sick! I love the rear suspension setup you've got going on.
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Old 09-19-2013, 09:15 AM   #3
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Location: Williamstown
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Default Re: Oshkosh P-series 6x6 Truck

interesting.. leaf front and fleeeeexy rear.. likin it so far!!!!
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Old 09-19-2013, 10:12 AM   #4
Rock Stacker
 
Join Date: Feb 2012
Location: Israel
Posts: 78
Default Re: Oshkosh P-series 6x6 Truck

Thanks guys!
Just a little update, I recently ordered an Integy Matrix Pro Lathe 45T Motor to move the truck, and some 5000mAH 2S LiPo batteries.
It will totally boost run time and hopefully performance.

Here it is with the front axle on

IMG_2333

The progress so far is the trim of the front of the chassis.

I have not decided yet on what cab to build, I have an aluminum HEMTT cab from my last project but I think I'll go with a smaller, maybe a single person cab. And a rear flat bed or even one covered with fabric.

BTW here is my new workbench!

New Workbench

See ya soon,
yorai

Last edited by yoraish; 09-25-2013 at 02:24 PM.
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Old 09-21-2013, 12:43 PM   #5
Rock Stacker
 
Join Date: Feb 2012
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Default Re: Oshkosh P-series 6x6 Truck

It's running!! Well actually rolling...

Video of the first run is up!

HLR: RC 6x6 Truck First Run 21/9 Work In Progress - YouTube


It can gather up some decent speed at 2nd gear, it is fun for now but it will all change when the new motor will arrive.

Last edited by yoraish; 09-21-2013 at 12:47 PM.
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Old 09-25-2013, 02:24 PM   #6
Rock Stacker
 
Join Date: Feb 2012
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Default Re: Oshkosh P-series 6x6 Truck

Finally decided to go with the all-aluminum HEMTT cab.

IMG_2348

Still only aluminum plates bolted together. I'll cut out the windows soon. Maybe using a borrowed cutting disc. I want to keep it light and have no styrene.. I'll figure out how to get on from there .

IMG_2350

Shifting gears!! I still cant believe such a small servo controls that

IMG_2352

In a couple of days I'm receiving my new motor! I'll keep updating on the performance of the truck with the current battery and the (soon to come) lipo batteries.
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Old 09-28-2013, 03:52 PM   #7
JLF
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Default Re: Oshkosh P-series 6x6 Truck

Very cool!
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Old 10-05-2013, 01:48 PM   #8
Rock Stacker
 
Join Date: Feb 2012
Location: Israel
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Default Re: Oshkosh P-series 6x6 Truck

Slow progression.

This week I received the new 45T motor, it's great! But the real difference will be noticed only when the batteries arrive. The run time is too short to test right now.



Continued the rear bed today, making the frame and mounting it on.

IMG_2359

Chassis mount

IMG_2356

IMG_2360

IMG_2361

IMG_2364

When working here I feel like a mad scientist

IMG_2355

That's it for now. Next, I will paint the chassis black and the body in another colour. And of course some more body work. Although not too much..
Can't wait for the batteries to arrive!
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Old 10-23-2013, 04:51 AM   #9
Rock Stacker
 
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Default Re: Oshkosh P-series 6x6 Truck

I made a new mount for the front leaf springs using 2mm aluminum cut and bent.

IMG_2366

IMG_2369

IMG_2371

I recently received 2 5000 mAH LiPos. Like I thought, it's great .

With the new mont I'm not afraid go a little harder on the truck, although from time to time the gears in the middle axle slip.
I have inserted 2 long M3 bolts across the axle to make it tighter.

I'll paint it soon.
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Old 10-27-2013, 08:38 PM   #10
I wanna be Dave
 
Join Date: Oct 2010
Location: Caldwell ID.
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Default Re: Oshkosh P-series 6x6 Truck

I was having the same issue with the gears in my middle axle as well. Solved it by shiming both the front and rear pinions in said axle.
Love the truck by the way.
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Old 11-07-2013, 10:33 AM   #11
Rock Stacker
 
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Default Re: Oshkosh P-series 6x6 Truck

Quote:
Originally Posted by lonleycreeper View Post
I was having the same issue with the gears in my middle axle as well. Solved it by shiming both the front and rear pinions in said axle.
Love the truck by the way.
Thanks! Right now the long bolts going through the axles are holding pretty well .

PAINT DAY!

Getting ready

IMG_2375

IMG_2377

Electromics

IMG_2378

Photo opportunity

IMG_2380

IMG_2381

My first paint ever, I'm actually feeling pretty good about it. (I used "hammerite direct to rust" paint with no primer)

IMG_2383

IMG_2384

IMG_2385

I made a new link

IMG_2386

Some blue leds I took out of a night lamp. They have their own on/off switch.

IMG_2387

IMG_2389

I have not yed decided what color to paint the body, I'll get to that soon.
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Old 11-07-2013, 02:24 PM   #12
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Default

Good job bro, I like the ck/wk axles. You have inspired me to use my set of ck axles, just need to find a third and another axle housing now.

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Old 12-02-2013, 10:20 AM   #13
Rock Stacker
 
Join Date: Feb 2012
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Default Re: Oshkosh P-series 6x6 Truck

Finally, a video!


https://www.youtube.com/watch?v=q67Hz-PEu7w

The painting is done, I plan making a photo shoot in the next few days.

Hope you like it!
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