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SOLID MODELRobotic Arms & Automation25-Mar-2026

TINKERKIT BRACCIO Robotic Arm Base

CBear_3D_Printed_Products
CBear_3D_Printed_Products
7 Files
stl Format

Description

I am an Engineering Technology Student from Ohio University. This is a base I designed for the TINKERKIT BRACCIO Robotic Arm. I designed this because the base that came with the kit was made of balsa wood and would easily break or allow the robot to fall over. This base is able to be printed on any 3d printer with a print bed that is 220mm x 220mm in size, for reference I printed this on a Creality Ender 3 v3. This model was made to have a speaker in it; the speaker I used was from an old ihome iBT22. Other speakers may work on this base; the speaker dimensions are 67mm diameter by 4mm deep rim. I would check your speaker dimensions before you print it. If needed, you might be able to design an adapter for your speaker to fit one in where the speaker mounts. You may also need the use some superglue to keep everything connected (base, middle base, top). The holes on the sides of the robot are supersonic sensors; the ones I used are "HC-SR04".

The Lid of the Base is mounted to the bottom bracket of the Tinkerkit robot using #4-40 x 1 in machine screws with included nuts for the screws, I also used #6 flat washers to protect the plastic from being damaged, I left some extra tolerance in the holes in case different screws are used.

Below is the are some links to the hardware needed to complete this project:

https://www.lowes.com/pd/Hillman-4-40-x-1-in-Phillips-Slotted-Combination-Drive-Machine-Screws-10-Count/3036647

https://www.lowes.com/pd/Hillman-36-Count-x-3-8-in-Zinc-Plated-Standard-SAE-Flat-Washer/3035984

https://www.harborfreight.com/10-piece-rare-earth-magnets-67488.html

Here is a link to a video of my project in use:

https://youtube.com/shorts/fUW8OdA8OgM

Downloads

Access_Lid_TPU_insert.STL
423.4 KB
Access_Lid.STL
817.6 KB
Base_with_Leg_Slots.STL
609.4 KB
Lid_V2.STL
1.1 MB
Speaker_Air_Port.STL
62.6 KB
Speaker_Wall_with_Sensors.STL
694.2 KB
Support_Arms.STL
576.0 KB