Answer · checked 7 Nov 2026
Open-source robot arms you can 3D print
SHORT ANSWER
Three open-source arms you can print at home: SO-101 (print files from the maker, or buy the printed parts for $29.90), PAROL6 (6-axis, printed parts kit €476) and BCN3D Moveo (every structural part is printed, plans only). Prices checked 7 Nov 2026.
Compare the three
| Arm | What you print | What you buy |
|---|---|---|
| SO-101 | 14 parts per arm, PLA+, 0.2 mm layers, 15% infill | Servo kit from $249.90 |
| PAROL6 | All printed parts (or buy the kit for €476) | Partial kit from €1,188.81 |
| BCN3D Moveo | All structural parts | Parts per the PDF bill of materials (no prices published) |
SO-101 · PAROL6 · BCN3D Moveo. Checked 7 Nov 2026.
People also ask
What printer do I need?
For the SO-101 the maker lists an Ender (220 x 220 mm) or Prusa (205 x 250 mm) bed.
Which is easiest?
See the difficulty score on each robot page; SO-101 and PAROL6 are 3 of 5.
Get the SO-101 when it is in stock and cheaper
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