Loading

Hey! This thing is still a Work in Progress. Files, instructions, and other stuff might change!

Linear Actuator

by TrinityLabs, published

Linear Actuator by TrinityLabs Oct 31, 2012
2 Share
Download All Files

Thing Apps Enabled

Order This Printed View All Apps

Tags

Use This Project

Give a Shout Out

If you print this Thing and display it in public proudly give attribution by printing and displaying this tag.

Print Thing Tag

Makes

Thing Statistics

18157Views 2850Downloads Found in 3D Printer Parts

Summary

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: http://brainspl.at/leadscrew-actuator/index.html
http://www.youtube.com/watch?v=-VnTqqkmQ2E

More from 3D Printer Parts

view more

All Apps

3D Print your file with 3D Hubs, the world’s largest online marketplace for 3D printing services.

App Info Launch App

This App connects Thingiverse with Makeprintable, a cloud-based mesh repair service that analyzes, validates and repairs most common mesh errors that can occur when preparing a 3D design file for p...

App Info Launch App

Kiri:Moto is an integrated cloud-based slicer and tool-path generator for 3D Printing, CAM / CNC and Laser cutting. *** 3D printing mode provides model slicing and GCode output using built-in...

App Info Launch App
KiriMoto Thing App

With 3D Slash, you can edit 3d models like a stonecutter. A unique interface: as fun as a building game! The perfect tool for non-designers and children to create in 3D.

App Info Launch App

What motor did you use?

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?

i dont understand why they would spring load? they do preload is they are using angular contact bearings for thrust control. one side has a double thrus bearing or two angular contact bearings so it can take thrust in both the positive and negative directions relative to its axis the other side (non driven) just "slip fits" thru a radial bearing that was there is no restraint in the plus minus direction. keeps the shaft turning true but eliminates binding due to expansion. also precision rod is a must when double supporting. the X axis on both my lathes are only supported on the "driven" side. (manual lathes) CNC zone is a wealth of info on CNC setups.

Which coupler from the motor shaft to the leadscrew do you recommend?

I used some similar to these: http://www.ebay.com/sch/i.html?_odkw=couplers&_sop=15&_osacat=0&_from=R40&_trksid=p2045573.m570.l1313&_nkw=5mm+couplers&_sacat=0http://www.ebay.com/sch/i.html...  Printed ones should work too, just use ones appropriately sized to your motor shaft and leadscrew.

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.

Enlarged the coupler region in the motor mount to make more room for large couplers.  Updated Actuator motor mount.stl and the .skp

This is really cool!  End stops would be a nice to have, too.

About the endstops, I suspect that is a part of this model that needs work - right now they aren't really adjustable.  I'll try to give it some thought, but I'm certainly open to suggestions.

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...

Sure, looks like a toss up between CC-BY-SA and GPL, both seem to specify the same thing - if I'm mistaken, can you clarify CC-BY-SA vs GPL for me?

Thanks :)

Interesting to note that "BY" is automatically assumed anymore, so they just call it "CC-SA" because all of the CC licenses assume you will give attribution.  I didn't know that until just now.

Top