Pacific P12 RC Truck 1:10 scale

From Wikipedia:
"Pacific Truck & Trailer Limited was a Vancouver, Canada based manufacturer of heavy trucks famed for their durability. Pacific built both highway and off-road trucks, particularly for the logging industry, heavy haulers, and fire trucks."

I tried to capture that spirit with this model.
It's about 1110mm in length, 310mm in width (without mirrors), 340mm tall and weighs about 8-10kgs.

For more pictures and videos of the truck please head over to my instagram. I have more updates on the truck over there than here.

So be warned, this is not for beginners!
As with all of the models I upload here, there will be no instructions, just the CAD-File for reference and a few photos. STEP and F3Z assembly files are included.
This is not 6x6, only 4x6

Specs/Build:

Motor:
For the motor I bought a used Bosch PSR 1200 LI-2 (it's important you get the 1200 and NOT 1800 model) for 30€ which is really affordable for a motor + 2-speed gearbox. A servo is used to switch gears.
1st gear is 0-450 rpm
2nd gear is 0-1650 rpm 
Combined this makes a pretty good combination of offroad capability and onroad speed.

Electronics:
Batteries: 3S 2,2Ah Ovonic (I'm running one in the front as a backup and two in a side tank that are hooked up in parallel)

ESC: Generic 160A 3S ESC doesn't really need to be waterproof but should feature a rather good BEC to power all the servos and lights
After some more testing I recommend using a separate BEC with more than 1A capacity

Reciever: To go with my Radiolink remote I got this 12CH reciever. My Remote can only do 10CH so that should be fine as well. I only need this many channels because I have my lights set up manually (blinker activated via switch on the remote and not with steering) so you could totally go 3 or even just 2 Channel here.

Light module: Nothing special here. I got a generic one here. Most of the LEDs were switched out for other types.

LEDs that I used:
-warm white 5mm (for front lights)
-orange 1,8mm (for blinkers/top lights)
-30 AWG wire for the LEDs

Additionally there is a buck converter for low beam thats ‘on’ as soon as the battery is connected. From the same converter I also run a 60x10mm PC-fan for cooling the ESC.

Servos: for steering I got a 25kg servo; for the gearbox I used what I had: generic 15kg servo
the steering wheel servo is a SG90 9g servo I had from a microcontroller-kit

Optionally (for the winch): there is a small, cheap ESC rated at 15A (which is more than enough for the N20 Motor I run there). My winch is mainly for show and not actual use so you might have to go a different route here.

This is how I  have my electronics set up (only for reference which components I placed where - please do a better job at wiring than me)

The hood is attached via 2 10x2 round magnets

Axles:
The axles were "cheap" from AliExpress. They are (according to the description) made for 

“Axial Wraith 90018 90020 1/10 RC Crawler Car”

As these axles have no differential I have cut one side on the front axle to make turning easier.
Only the rear axles are actually driven so there is no need for a solid front axle.

The driveshaft is from AliExpress too, however you can use any drive shaft with 5mm bores and a length of 119-159mm (at least thats what worked for me)

Tires:
I used 150*58mm tires with a 2,2inch rim from AliExpress. The rims are all 3D-printed and fit really snug. I have yet to encounter any issues with rimslip.

Frame:
The frame uses two 40x15x2mm aluminium rectangular tubes with 1090mm length each.
The “printed frame” parts are then pushed onto the tubes with some of them being secured by M3 Screws - please refer to the CAD-model but generally all holes in the parts are self explanatory and used.
To have some weight on the rear axles for traction I used tire balancing weights I got on Amazon.

Suspension:
I printed the leaf springs from gerneric PETG. Make sure to use many walls for strength. A very hard TPU (maybe 72D) would probably be better suited.
The front leaf spring is assisted by a metal coil spring due to the added weight of the batteries. 
For the rear leaf springs I had them SLS-printed in a nylon I think - so far they're hold up.

Cab:
The Cab was printed in a single piece as it's still manageable in terms of support if you print it upside-down. I don't remember where I got the seat model from - I just made the base and cut a seat I found online to fit. If you are the author of the seat or know where I could have gotten it, please get in touch!
For a driver I bought a Bud Spencer figure from Amazon which fits quite well at 180mm tall.

The steering wheel is animated using a 9g servo tied to the steering channel.

Glass panels for the Windows were laser-cut from 1-2mm thick acrylic and glued using a special glue for glass from Uhu.

Attachments:
So far there is a rack for a winch and spare wheels as well as a 5th-wheel. The 5th wheel can be mounted in a street (rigid) or offroad (swinging) configuration. I only designed the mounts for it, the rest of the 5th wheel is adapted from HugoBiermann over on Thingiverse. He has a lot of cool designs so definitely check out his profile.
The 5th wheel height is about 185mm.

I'm currently designing a gooseneck-trailer which I'll be uploading shortly™.

None of the links included are affiliate or sponsored in any way, shape or form.

If there is anything missing or you have a request feel free to contact me or leave a comment :) I'll try my best to help.
Appologies for my bad english - it is not my first language