1/10th RC Car Off Road Trailer

Build Your Own RC Car Trailer (On-Road + Off-Road Versions)

In this package, you’ll get all the STL files needed to print and build your own RC car trailer.

It includes two versions:

Off-Road (with suspension)

On-Road (fixed setup for simplicity)

What You’ll Need for this kit:

Once you’ve printed your parts, you’ll need a few basic components to complete the build.

For the On-Road version, you’ll need:

Bearings

Axles

Wheel hex adapters

Wheels

Nuts & bolts

For the Off-Road version, you’ll also need:

Shocks

Suspension links

Print settings:

For most parts, printing with 4+ wall lines and 4+ top/bottom layers, 35% infill will give more than enough strength. If you choose the off-road version, printing the swing arm and the swing arm mount at 100% infill is recommended.

PETG is also recommended but PLA will work just fine.

I’ve included links below to the exact parts I used. Everything is easy to find and budget friendly.

Parts List:

Bearings

Any standard 5x10x4mm bearings will work.

On-Road: 4 required

Off-Road: 8 required

Recommended option: https://www.aliexpress.com/item/1005008851988964.html?spm=a2g0o.order_list.order_list_main.10.176c1802uvT4nc

Wheel Axles: https://www.aliexpress.com/item/1005009045371830.html?spm=a2g0o.productlist.main.4.62faFhqGFhqGku&algo_pvid=6a8e4e2b-b82b-41f1-8935-14e8067eec87&algo_exp_id=6a8e4e2b-b82b-41f1-8935-14e8067eec87-3&pdp_ext_f=%7B%22order%22%3A%2219%22%2C%22spu_best_type%22%3A%22price%22%2C%22eval%22%3A%221%22%2C%22fromPage%22%3A%22search%22%7D&pdp_npi=6%40dis%21AUD%213.76%213.53%21%21%2118.11%2117.00%21%40210311a017763435023731597e995a%2112000047699466923%21sea%21AU%214110139502%21X%211%210%21n_tag%3A-29919%3Bd%3Aa4e40d24%3Bm03_new_user%3A-29895%3BpisId%3A5000000204640762&curPageLogUid=A7liEqlobiNk&utparam-url=scene%3Asearch%7Cquery_from%3A%7Cx_object_id%3A1005009045371830%7C_p_origin_prod%3A

Wheel Hex (matched to axles above): https://www.aliexpress.com/item/1005011907401366.html?spm=a2g0o.productlist.main.14.526330aaBWY9Bm&algo_pvid=4f7e5357-7a2a-47a2-9a12-6a337438b824&algo_exp_id=4f7e5357-7a2a-47a2-9a12-6a337438b824-13&pdp_ext_f=%7B%22order%22%3A%223%22%2C%22eval%22%3A%221%22%2C%22fromPage%22%3A%22search%22%7D&pdp_npi=6%40dis%21AUD%213.68%213.53%21%21%2117.83%2117.12%21%4021032f3717776310156861258ea422%2112000056975063758%21sea%21AU%210%21ABX%211%210%21n_tag%3A-29910%3Bd%3Aa4e40d24%3Bm03_new_user%3A-29895&curPageLogUid=GILnnpeQdBRr&utparam-url=scene%3Asearch%7Cquery_from%3A%7Cx_object_id%3A1005011907401366%7C_p_origin_prod%3A

Wheels: https://www.aliexpress.com/item/1005011784201855.html?spm=a2g0o.productlist.main.11.2a3aJz6nJz6nlX&algo_pvid=46651433-0a1a-4c3a-b658-c4ec008caf7f&algo_exp_id=46651433-0a1a-4c3a-b658-c4ec008caf7f-10&pdp_ext_f=%7B%22order%22%3A%22-1%22%2C%22eval%22%3A%221%22%2C%22fromPage%22%3A%22search%22%7D&pdp_npi=6%40dis%21AUD%2112.94%219.19%21%21%2162.36%2144.28%21%402101eecd17763437321245724ef711%2112000056543467803%21sea%21AU%214110139502%21X%211%210%21n_tag%3A-29919%3Bd%3Aa4e40d24%3Bm03_new_user%3A-29895&curPageLogUid=lGQA9uRdD2C4&utparam-url=scene%3Asearch%7Cquery_from%3A%7Cx_object_id%3A1005011784201855%7C_p_origin_prod%3A

Nuts & Bolts: https://www.aliexpress.com/item/1005007610989648.html?spm=a2g0o.productlist.main.3.112813cacyWjAv&algo_pvid=5577bb79-4808-4f05-9ac4-0a5ac3fba67e&algo_exp_id=5577bb79-4808-4f05-9ac4-0a5ac3fba67e-2&pdp_ext_f=%7B%22order%22%3A%222880%22%2C%22spu_best_type%22%3A%22price%22%2C%22eval%22%3A%221%22%2C%22fromPage%22%3A%22search%22%7D&pdp_npi=6%40dis%21AUD%218.65%211.40%21%21%2141.69%216.73%21%402101d6fe17763442892867644e15eb%2112000041498218330%21sea%21AU%214110139502%21X%211%210%21n_tag%3A-29919%3Bd%3Aa4e40d24%3Bm03_new_user%3A-29895%3BpisId%3A5000000204047332&curPageLogUid=AYo4YonJnFmd&utparam-url=scene%3Asearch%7Cquery_from%3A%7Cx_object_id%3A1005007610989648%7C_p_origin_prod%3A

29 × M3 pairs (On-Road)

39 × M3 pairs (Off-Road)

Most connections use 10mm bolts, but for the Off-Road version you’ll need:

2 × 25mm bolts

It’s easier and often the same price to buy 25mm bolts and cut them down as needed.

(buy more just in case)

Off-Road Only Parts

Shocks: https://www.aliexpress.com/item/1005004741396979.html?spm=a2g0o.productlist.main.5.48d27092JljrTm&algo_pvid=023b5b51-c8a8-409b-bf28-3ec3dd2d9e90&algo_exp_id=023b5b51-c8a8-409b-bf28-3ec3dd2d9e90-4&pdp_ext_f=%7B%22order%22%3A%2233%22%2C%22eval%22%3A%221%22%2C%22fromPage%22%3A%22search%22%7D&pdp_npi=6%40dis%21AUD%2115.60%2111.39%21%21%2111.03%218.05%21%402101e2b617763454815664407eb814%2112000030305926897%21sea%21AU%214110139502%21X%211%210%21n_tag%3A-29919%3Bd%3Aa4e40d24%3Bm03_new_user%3A-29895&curPageLogUid=NIFM6dHaeEJe&utparam-url=scene%3Asearch%7Cquery_from%3A%7Cx_object_id%3A1005004741396979%7C_p_origin_prod%3A

Suspension Links: https://www.aliexpress.com/item/1005010413261797.html?spm=a2g0o.productlist.main.19.25b61ca6rgzqH2&algo_pvid=063d9adc-5ca1-468f-9a01-0beafa2d3982&algo_exp_id=063d9adc-5ca1-468f-9a01-0beafa2d3982-18&pdp_ext_f=%7B%22order%22%3A%2258%22%2C%22eval%22%3A%221%22%2C%22fromPage%22%3A%22search%22%7D&pdp_npi=6%40dis%21AUD%2111.40%211.40%21%21%2154.96%216.76%21%402103128817763457596637316e8320%2112000052327000809%21sea%21AU%214110139502%21X%211%210%21n_tag%3A-29919%3Bd%3Aa4e40d24%3Bm03_new_user%3A-29895%3BpisId%3A5000000204047332&curPageLogUid=UtJkXsgjj9o7&utparam-url=scene%3Asearch%7Cquery_from%3A%7Cx_object_id%3A1005010413261797%7C_p_origin_prod%3A

Tow Hitch: (please don't forget to favorite this model too!)