This trailer can comfortably hold a trx4m and the truck has no problem pulling it.

I printed all the parts out of pla but i don't think it matters what material you use, i printed it on my elegoo neptune 3 plus and it maxed out the bed.

2 x axles

4 x axle mounts

1x trailer bed

2x ramps

1 x hitch

4 x hub adapters

Wheels https://www.amazon.com/CrazyHobby-Beadlock-Deadbolt-Chevrolet-Replacement/dp/B09JSNW37Q?pd_rd_w=2gyHN&content-id=amzn1.sym.5a5ce87a-6e3e-461e-8699-23c0adbf7599&pf_rd_p=5a5ce87a-6e3e-461e-8699-23c0adbf7599&pf_rd_r=TCPCMPDEQHW8Y3DC5H7N&pd_rd_wg=6KsL9&pd_rd_r=b8011264-8994-44dd-bca2-5bccabba08c8&pd_rd_i=B09JSNW37Q&ref_=pd_bap_d_grid_rp_0_15_t&th=1

Coupler https://www.amazon.com/dp/B0BP7DR3F1?psc=1&ref=ppx_yo2ov_dt_b_product_details

bearings https://www.amazon.ca/uxcell-MR117-2RS-Bearings-Miniature-Precision/dp/B0CM6R5HX1/ref=sr_1_5?crid=5R9CVGMQ83T8&dib=eyJ2IjoiMSJ9.cB-DBcnU8hUee8HwkJGxDdOwCXONAFWNulXm3QZ0UUJI4CSXos6ENgIpkfzQgg5rQ_0Q7bPZKWlt2fyZNKr3tMDtM0i7Vw7s7no1OfAjSBsTqm6BMMhrbWrUNOXzlsCUJj18ecF-1aLdkaBB1mDsJYjA7J01ze2wAgg3lpA_X1lji6qH4IgyUMHx4EfibIiZ0Z77vuWRqZlLOLyYVaHMXQGrzr2g2VsxlUpxPPgrKXvHGw5rVLXExrZztea0EZjLFfbkeEmjB14J6dx7QLUgWUvBMvH9LBFSNcVP7Xsf9JU.9xhZG7kMZ54L-ErxV-WyI14XKl2uYIF__tp3eob5uS0&dib_tag=se&keywords=7x11x3mm%2Bbearings&qid=1750024499&sprefix=7x11x3mm%2Bbearings%2Caps%2C130&sr=8-5&th=1