manual tracked excavator caterpillar

not suitable for children under 3 years old,

The complete project is excavator.3mf, there are all 3 versions in it

manual tracked excavator

-→ new version N°3 for the bearing-less chassis, entirely printable, without bearings, without axles or metal screws!

possible WITHOUT AMS (just for the Volvo logo, pause before the last 4 layers to change filament color)

very easily printable in PLA, guaranteed success with a Bambu Lab printer !!!

print the 3mf files directly from MakerWorld and everything is already set!

there are several versions:

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version 1 :

  with small bearings on the outer rollers :

you print the 3mf file : “chassis inf roller with bearings”

and you will need:

 -8 bearings (Diameter 3mm x 4mm x8mm) on aliexpress https://fr.aliexpress.com/item/1005009103125690.html?spm=a2g0o.productlist.main.22.42b42194fDVp3O&algo_pvid=f67201c5-9078-4a28-bb4f-be59fba6d43f&algo_exp_id=f67201c5-9078-4a28-bb4f-be59fba6d43f-21&pdp_ext_f=%7B%22order%22%3A%22332%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%21EUR%212.28%210.99%21%21%2118.01%217.82%21%402103867617688597142652553e029f%2112000047950996897%21sea%21FR%210%21ABX%211%210%21n_tag%3A-29910%3Bd%3A30e34851%3Bm03_new_user%3A-29895%3BpisId%3A5000000197682689&curPageLogUid=LhABpj2MPiBD&utparam-url=scene%3Asearch%7Cquery_from%3A%7Cx_object_id%3A1005009103125690%7C_p_origin_prod%3A

  - 6 M3x30mm screws for the chassis + nuts

  - 2 M3x25mm screws for arm1 / arm2 and arm 2 / bucket + nuts

  - 1 M4x30mm screw for chassis axle / arm 1 + nut

optional : if you want to replace the 3D printed axles and screws for arms

  - 2 M4x40mm screws for cylinders 1 + nuts (if you don't want to use the 2 M4x38mm 3D printed screws)

  - 2 M3x15mm screws for arm 2 / cylinder 2 and arm 2 / bucket cylinder

  - 1 M4x15mm screw for cylinder 2 / arm 1

  - 4 M3x20mm screws for bucket and bucket linkages

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version 2 :  no bearings, you can upgrade later when you order bearings …or not

you print the 3mf file : “chassis inf for 3mm axle”

same list of materials as version 1 without bearings

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version 3: no bearings, no metal axles, no metal screws, all printable !

you print the 3mf file : “chassis inf without bearing or metal axle”

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you will need some plastic cyanoacrylate glue (activator if you are in a hurry ;) )

https://www.amazon.fr/Colle-liquide-extra-forte-50/dp/B0BYJGH8SG/ref=sr_1_8?crid=1X7DXDZUI1XS7&dib=eyJ2IjoiMSJ9.wufLkAguISQeaNg-Bnv4YMoihuLTVXcGJ-j5XZhOQ7Twz8MCygjaEFVQVsJochiYiQ3jT8VtKRu8U1Czcd1kW4NXYkNitGln6x3zMnDLdH_nGndZLBH-jmxOuknAoqf3IiWb9aB23Jmi4wCmt5X-sLnGnTt1b-u1eoGrROaxK6k4mpRI16APdO7dlh8U8XbPP36VR1xEiOCQixH_7Vu9sU3060Z_AFMfXlWyogcRPKdsmVGSb8yl_vqoOgwzr-v6FYg5h4ETMse9Dn5sryns-cxZz2ZOizLtSKZagyjKdk8.93jAO20JAm6oIYqaPSehuh_yDeo1D3w4c_LLUPU8rho&dib_tag=se&keywords=colle%2Bcyano%2Bplastique&qid=1768861471&sprefix=colle%2Bcyano%2Bplas%2Caps%2C230&sr=8-8&th=1

Thank you for your feedback and photos.

Happy printing and enjoy playing with it !