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Descrição
A set of printed components to build a robot arm that can be controlled and managed by any of the Raspberry Pi single board computers (SBCs),
This robot arm project with Python software and documentation, available from here, is based upon the open hardware design by phenoptix first published in Technology Robots in July’14. Whilst originally developed for the Raspberry Pi Maker PCB v5.0 that simplifies interconnect, conventional/direct connection to a Raspberry Pi is equally straightforward.
The original phenoptix design was for a set of laser cut components, so each item was inevitably a simple flat element made from 3mm thick acrylic sheet. These laser cut components were however converted to 3D printable components by Dingo_aus and posted to the ‘thingiverse’ web site in December ’14 (full details here) but they retained their ‘flat’ nature without really taking any of the advantages that 3D printing can bring to a design.
Starting from the .stl files created by Dingo_aus, further extensive updates and additions have been made for this revised design as well as some of the original files being ‘repaired’. Many more refinements are certainly possible with a full 3D approach now being used, and further design iterations may be made at a future date
This new build design includes a ‘normal’ plain base with built-in fittings for various battery power supply options as well as an optional LEGO compatible 'base' and other LEGOised components.
Detailed descriptions of all aspects of this evolving project are at this link and example software plus detailed documentation for building and usage can be downloaded from here.
All the components use 1.75mm PLA and a layer height of 0.15mm with print details for each component produced on an i3 Mk3 shown in the table below.
component file name/description | needs support (Y/N) | brim (mm) | filament | print time |
servo_arms1-3_rotx180.stl - 3 servo arms labelled S1, S2 & S3 | N | 0 | 1.94 | 44m |
servo_brackets1-4_rotx180.stl - 4 servo brackets labelled br1, br2, br3 & br4 | N | 0 | 2.34 | 1h 0m |
part_1x2_rotx180.stl - 2x part 01 labelled 1-1 & 1-2 | N | 0 | 1.54 | 34m |
part_2-02_rotx180.stl - part 02 labelled 2 | N | 0 | 1.64 | 29m |
part_3_rotx180.stl - part 03 labelled 3 | N | 0 | 0.95 | 21m |
part_4_rotx180.stl - part 04 labelled 4 | N | 0 | 0.85 | 20m |
part_5_rotx180.stl - part 05 labelled 5 | N | 0 | 0.27 | 9m |
part_6_rotx180.stl - part 06 labelled 6 | N | 0 | 0.97 | 18m |
part_7_rotx180.stl - part 07 labelled 7 | N | 0 | 0.95 | 23m |
part_9_rotx180.stl - part 09 labelled 9 | N | 0 | 0.44 | 14m |
part_10-12-23-25.stl - parts 10, 12, 23 & 25 not labelled | N | 3 | 0.42 | 13m |
part_11_rotx180.stl - part 11 labelled 11 | N | 0 | 0.67 | 18m |
part_13_rotx180.stl - part 13 labelled 13 | N | 0 | 0.97 | 21m |
part_14_rotx180.stl - part 14 labelled 14 | N | 0 | 0.74 | 16m |
part_15_rotx180.stl - part 15 labelled 15 | N | 0 | 0.55 | 14m |
part_16_rotx180.stl - part 16 labelled 16 | N | 0 | 0.13 | 8m |
part_17_rotx180.stl - part 17 labelled 17 | N | 0 | 0.36 | 11m |
part_18+19_rotx180.stl - parts 18 & 19 labelled 18 & 19 | N | 0 | 0.89 | 23m |
part_20_rotx180.stl - part 20 labelled 20 | N | 0 | 0.19 | 9m |
part_21_rotx180.stl - part 21 labelled 21 | N | 0 | 0.14 | 7m |
part_22_rotx180.stl - part 22 labelled 22 | N | 0 | 2.12 | 43m |
part_24_rotx180.stl - part 24 labelled 24 | N | 0 | 1.93 | 40m |
part_26_LEGO_tile02.stl - part 26a - LEGO tile base - not labelled | N | 5 | 4.49 | 1h 57m |
part_26_base02_rotz180.stl - part 26b - plain base - not labelled | N | 3 | 11.96 | 3h 21m |
32mm_top_open__2x_left-right_bat_holders02.stl: 2x 32mm 5000mAh 5V/2A battery bank mounting clips | Y | 0 | 2.21 | 52m |
21mm_2x_right_top_facing_battery_holder01_roty180.stl: 2x 21mm 3350mAh 5V/1A battery bank mounting clips | N | 0 | 1.25 | 33m |
2x_battery_clamp_LEGO_tile02.stl - 2x battery clamp LEGO tile - not labelled | N | 3 | 1.97 | 46m |
4AA_batt_box_LEGO_tile01.stl - 4AA battery holder LEGO tile - not labelled | N | 0 | 3.66 | 1h 11m |
part_27-02_rotx180.stl - part 27 labelled 27 | N | 0 | 1.96 | 36m |
RPi_Maker_Kit_LEGO_tile02.stl - RPi Maker kit LEGO tile - not labelled | N | 3 | 6.03 | 2h 19m |
Robot arm controlled by a Raspberry Pi
Publicado em 15 de mai de 2026
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