Changelog ews: 2025-01-05: I designed [print-in-place Petg fin ray grippers](https://www.thingiverse.com/thing:6900815) which can be used with this designs robotic gripper part 2021-02-03: Added new variant 08 Gear rack drive (main body) v5_strongerprint for easier removal of support structures 2019-02-24: Updated 11 Gripper arm to v5, implementing [these suggestions](2019-02-10: Peter ([PHabermehl](https://www.thingiverse.com/PHabermehl/about)) designed two five alternative [arms for the gripper](https://www.thingiverse.com/thing:3419079). 2018-12-21: Added adapter #12 for fischertechnik pneumatic manual valve (Handventil) 2018-12-17: Peter ([PHabermehl](https://www.thingiverse.com/PHabermehl/about)) designed [a tool for calibrating the servos](https://www.thingiverse.com/thing:3287773). This is an enclosure for the ubiquitous [SG90 mini servos]((and others with the same dimensions like SG92R or HXT900) which makes it compatible with the [fischertechnik](construction toy system. It comes in two versions, a naked one, and one with pegs at the sides. As this is called mini servo system, I included several adapters for different kinds of fischertechnik parts and applications: 1. steering arms with 15, 22.5 and 25mm radius, similar to those provided with the original ft servos (Lenkhebel [LR15]([LR22,5]([LR25](2. building block adapter ([Baustein 5](and [Baustein 7,5](3. 10 tooth gear ([Zahnrad Z10](4. clip-on axle adapter ([Rastachsenkupplung 15](5. dedicated strut adapter for middle or end point mounting ([Streben](für Mittel- oder Endbefestigung). I used lamers [Parametric Fischertechnik Parts](https://www.thingiverse.com/thing:86301) for this adapter. 6. adapter for small m0.5 Z20 gear ([S-Riegelscheibe Z20 m0,5](can also be used as alternative (less robust) strut adapter 7. adapter for bigger gears and metal axles ([Flachnabenzange](8. gear rack drive (similar to [ft Hubgetriebe](This needs an enclosure with pegs and can be installed in two positions with a small gear (travel ca. 8mm) or a large gear (travel ca. 40mm). 9. adapter for roboter arm, with print-in-place mounting on the opposite side. Unfortunately, the SG90s are too weak for a reliable 3-element arm, but 2 will work, 3 in some cases. 10. pneumatic valve for 4mm tubes. This is kind of experimental and needs improvement, as it does not close completely air-tight. 11. robotic gripper with rounded gripper hand, needs enclosure with pegs. Compatible fin ray grippers [here](https://www.thingiverse.com/thing:6900815) 12. (added 2018-12-21) adapter for fischertechnik pneumatic manual valve ([Handventil]( Most adapters are designed to be fixed with the screws included with the SG90 horns. Adapter 7 needs a screw with a smaller head. There is a [thread on this thing](in the fischertechnik community forum. Find my other fischertechnik designs [here](https://www.thingiverse.com/juh/designs). https://www.youtube.com/watch?v=ZpICI-pzrmg https://youtu.be/4S-dK5tG26w Источник: https://www.thingiverse.com/thing:2807112 Автор: juh Лицензия: Creative Commons - Attribution - Non-Commercial - Share Alike