Linear Servo Actuators
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PLA from £6 inc. UK delivery on letter-sized prints. We slice, print on a calibrated Creality K2 / Bambu A1, QC and post.
This is a general purpose linear servo actuator (pusher style). Two sizes have been designed, for different space constraints and force outputs.
These use continuous rotation servos which helps keep the cost very low. Off the shelf actuators of this type can cost around $70 USD.
The “mini” version will fit in smaller spacers, but has a much lower force output. The “large” version has a higher force output, but is...larger in size than the “mini”.
Here is a video that shows how to assemble and run both sizes:
https://youtu.be/2vAoOYF3m8U
If you like this design, you may also like my Motorized Turntable with Magnetic Attachment Plates:
https://www.thingiverse.com/thing:3353201
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Some inspiration for this design came from:
https://hackaday.com/2016/03/31/3d-printed-case-turns-servo-into-quality-linear-actuator/
Included in the files are a list of materials for each size, as well as affiliate links for the non 3D printed parts.
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STL quantities to print:
Mini version-
Motor Bracket, Mini Version {QTY 1x}
Pinion Gear, Mini Version {QTY 1x}
Large version-
Motor Bracket, Large Version {QTY 1x}
Pinion Gear, Large Version {QTY 1x}
Pusher- (works for both types, choose only the desired length and print QTY…
