Hey! This thing is still a Work in Progress.
Files, instructions, and other stuff might change!
Linear Actuator
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Published on October 31, 2012
Description
A self contained linear motion component we've been playing with.
Instructions
Instructions are incomplete, because this is just a prototype, but it should be pretty self-explanitory if you open up the model.
It isn't perfect, but it's coming along.
Intended to use SDP-SI A 7Z 7-031 thrust bearing at either end (or other size appropriate to your lead screw)
This is still an early beta. There is a proof of concept here: brainspl.at/leadscrew-actuator/index.html
youtube.com/watch?v=-VnTqqkmQ2E
It isn't perfect, but it's coming along.
Intended to use SDP-SI A 7Z 7-031 thrust bearing at either end (or other size appropriate to your lead screw)
This is still an early beta. There is a proof of concept here: brainspl.at/leadscrew-actuator/index.html
youtube.com/watch?v=-VnTqqkmQ2E
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ChristianSi
on
December 1, 2012
said:
Which coupler from the motor shaft to the leadscrew do you recommend?
OpenBuilds
on
November 22, 2012
said:
I ran across this design not to long ago on a website where they were building lots of different machines (including a delta) using the same actuator connected in different configurations. Built a few of my own to mess with.
TrinityLabs
on
November 15, 2012
said:
Enlarged the coupler region in the motor mount to make more room for large couplers. Updated Actuator motor mount.stl and the .skp
ChristianSi
on
November 1, 2012
said:
That's lovely, but could you change the license to something that complies with the Open Source Hardware Definition (e.g. CC-BY, CC-BY-SA or GPL)? If this was truly open source, it would be even better...
License
Linear Actuator by TrinityLabs is licensed under the Attribution - Share Alike - Creative Commons license.
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Just a thought you might want to look and see what the CNC guys thing about using thrust control on either side of the rod. typically its bad because the rod can not expand as it heats up.. normally a double thrust bearing at the drive side then just a radial bearing that the shaft can float in on the non driven side.
So do they spring load the bearings on one side?