1/10 Scale Rc Topsy

by MuddyFarmer in Circuits > Remote Control

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1/10 Scale Rc Topsy

its cool so why not. this is not for the faint of heart if you have issues feel free to reach out on discord , whatever 3d printing site you downloaded the model from or via email to Muddyfarmer314@gmail.com (it may take longer here i suck at remembering to check this email)

Supplies

As always, these are affiliate links. I earn a small commission if you purchase through them, at no additional cost to you.

Suspension & Steering

  1. Tires – 10 needed
  2. Amazon link
  3. Shocks – 6 needed
  4. Amazon link
  5. 80mm is best, but I have a part available for 90mm shocks as well.
  6. Steering Servo – 1 needed
  7. Amazon link
  8. Only one is needed for the truck.
  9. Ball Joints
  10. Amazon link
  11. Front Tire Inserts – 2 needed
  12. Stiff inserts for the front tires.

Drivetrain

  1. Drive Motor
  2. Amazon link
  3. Transmission
  4. Amazon link
  5. Differentials – 3 needed
  6. Amazon link
  7. Front Axle Shafts
  8. Amazon link
  9. Rear Axle Shafts – 2 needed
  10. Amazon link
  11. 15T M1 Gears – 2 needed
  12. Amazon link
  13. Battery
  14. This is the battery I use:
  15. Amazon link

Wheels & Hubs

  1. Wheel Hex Hubs – 6 needed
  2. Amazon link
  3. Wheel Hexes – 6 needed
  4. Amazon link

Bearings

  1. 8×16×5mm Bearings – 2 needed
  2. Amazon link
  3. 5×11×4mm Bearings – 24 needed
  4. Amazon link
  5. 7×14×3.5mm Bearings – 6 needed
  6. Amazon link

Frame & Body

  1. Frame Rails – 2 needed
  2. Amazon link
  3. These are 1000mm rails. I also use these for trailer frames.
  4. Windows
  5. Amazon link

Hardware & Miscellaneous

  1. M3 and M4 Hardware
  2. A good assortment of both, with a small amount of M2 hardware.
  3. M4 T-Slot Nuts – Tons needed
  4. Amazon link
  5. The truck uses a little over 50, but these are also used for the trailers, so it's worth having extras.
  6. 2mm Rod – 300mm
  7. Amazon link
  8. Any material will work. I use stainless steel.
  9. 5mm Rod – 300mm
  10. Amazon link
  11. Needs to be something you can drill. I use brass. This gets cut down to under 100mm, so these will work a single longer piece will also work 300mm or so


Rear Axles

16: m3x12

8: m3x20

6: 5x11x4 bearings

2: rear axle shafts scx10

2: 7x14x3.5 bearings

1: ar44 diff

4: m3 lock nuts

grease


these axles are placed in the truck in 2 orientations so on one the nuts go on the pinion side the other they are opposite

Shocks

2 t-slot nuts

2 m4x10?

m3x20

m3x16

2 m3x12


you can have a different shock its the same hardware just print the correct mount for the length


Axle on Suspension

4 m3x30-35 not picky at all

wheel hexs and hardware

one of these should have the pinion coming out the top the other is the bottom

Rear Tires

18:m3x16

if you have ever assembled rc tires thats all you are doing 2 tires per hex adapter 4 sets in total the black parts can be gray as well they arent really seen

Transfer Case/splitter

4 m3x12

4 m4x10?

4 t-slot nuts

2 15tM1 gears

4 5x11x4 bearings

2 brass shafts

grease

Transmission

4 m3 bolts of whatever lengths appropriate for your transmission

mount the motor too

4 m4x10?

4 tslot nuts


Mount the Drivetrain

front to rear for whole step instructoins

front axle

front 145-225

to splitter 95-130

left in image 135-205

right in image to center axle 145-225

rear 155-240

aliexpress.com/item/3256805605578991.html?spm=a2g0o.order_list.order_list_main.86.21ef1802v240hI


the center axle has the pinion leave through the bottom the front and rear its on top

the main frame rails are 2x 1000mm long 2020 extruded aluminum

Mount Side Details and Bumper

each part takes 2 m4 bolts and t slot nuts

the bumper also needs the grill guard attached with some m3 screws and the flaps m3 as well

Cab Pre Assembly

doors take 2mm stainless rod as hinges

m2 for the air brake handles and inner door panels

m3 for the seat and steering column

5mm stainless for the wheel

trim the acrylic to match the window frames and glue it all in dont forget the back wall of the cab https://youtu.be/zPPHn8kpXwA?si=8zqDxr3M5d8c_qEr&t=28

the 25 minute mark shows how i install the door hinges as well


horn https://youtu.be/uCz3nRtT-H8?si=qeGMnnDt42-vgJjL&t=1791

the visor on the roof is m2

leave the roof and back wall off for now it makes installing the cab much easier but when the time comes they take m3x12

Hood

it takes some glue and 6x2 magnets but pretty straight forward 2mm rod for the hinge again the front m4 hole doesn't line up with stuff underneath so just leave it empty

Hood Install

pull off the bumper it make it easier to slide the hood in then reinstall bumper push the hood up againstthe bumper and tighten the 3 m4 bolts down

now take 2 m3x30 bolts and run them into the bottom of the bumper this helps hold everything in place

Cab Install

cab goes against the back of the hood m4 bolts are on the floorboards then add the roof and back wall

Headache Rack and Wiring

wire it up based on your receiver if you are using the same motor as me you will need an extension lead to connect to the battery tray under the hood and i ended up needing a servo wire extension. the headache rack need the lights glued in and bolts m4 with t slot nuts to mount it and m3x12 for the back cover (i forgot to get a picture of that.)

5th Wheel Plate

extra thanks to black crow for allowing the use of this