DIY Linear Servo Actuator 3D Printed with full Positional Control and long travel
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- เผยแพร่เมื่อ 1 พ.ค. 2020
- DIY Linear Servo Actuator 3D Printed with full Positional Control and long travel
-Slim Profile, no large parts
-smaller driving gear improves Torque
-uses a modified SG90 180 degree Servo Motor
-external position feedback using potentiometer taken out of the SG90 servo
-works with standard Arduino Servo example code
-printed in PLA 0.3mm Layer
-also works with servo testers
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Feel free to ask anything related to this video in the comments.
Link to 3D files: www.thingiverse.com/thing:455... - วิทยาศาสตร์และเทคโนโลยี
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What a clever desing! Congratulations and thank you for sharing the files :)
Glad you liked it. Please like, share and subscribe
Very well done!!
I have been tinkering with gear ratios for 120 degree servo actuation; however, your design exceeds this, is much smaller, and is more relevant to my needs. Well done. I will be downloading your design from Thingiverse and will add your name as author of the design and file owner when posting in other forums. Again, thank you. Best to you and yours, Steve
Thanks a lot man, please share the video link too
Awesome man.. Keep posting👌👌
thanks a ton✌🏻
Good job!
AMAZING
Impressive 👍
Nice pan😎✌
Well done brother , i must say engaging the gear and made them working is not cup of tea for everyone , i appreciate the detail demonstration!! Pure combo of mechatronics+self Design , U nailed it.
thanks a lot bro!
Very good
Super sir thanks for sharing
Make more videos
Great man
😀
Cheerey patey
Hey, thanks for sharing this awesome instruction video. I was wondering if you could kindly share your source file also?
Go Further 🙂
Hi! these are really awesome tutorials! I wonder why my servo looks different with yours, theres no wires inside and I can't take them apaer
great design. is it possible to get the .step file?
Simply superb bro... Creative and minimilastic design.. only you need 3d printed parts and some time with soldering iron... That is it.. ;)
Thanks bro!
@@beardoguy I quickly gave print and simultaneously removed a sg90... Found that the pot connections need to be taken out and sacrifice another servo potentiometer for 2nd gear... Hmmm.... Design could have improved with rm065...anyhow.. good design though... 😎😎
@@mutthunaveen I'll look into the rm065, thanks.
@@beardoguy nice...
We can cut the wires of inside pot.. and put any resistance value pot outside (resistance value doesn't matter because all the IC reads is the voltage from VCC to GND) so any pot should work...
Brilliant! Could you please advise on reading materials to learn how to design gears and computer aided design?
My daughter is in high school and is learning arduino and servo motors / robotics for her hobby projects.
Glad you liked it! Regarding the gear designs, the Fusion 360 has inbuilt gear designing scripts/plugins which make it more easier to design gears for all purposes, you can find some videos online, or if it feels to intimidating, let me know, I might make a tutorial later on for gear designing using this project as an example. Please Subscribe and share, thank you.
Thank you for share. I am not really knowledgeable when it come to this stuff. Could this be fitted with some type of meter to move the rack in and out, in precise increments.
Yes, it can be precisely controlled as needed, that's the main advantage of this design.
If i were to use the same concept, but let's say to open/close an sliding door, how strong the motor would need to be?
Great work. Thanks a lot. In my case, I need to send 8 inches of the rack. Should I increase the radius of the pinion or the gap between the teeth?
You should increase the radius of the pinions.
Could i have the cad files as well i have to modifie zhis for a bigger servo. Please
How did I add the servon into the workspace?
How did you add the servo motor component into Fusion 360?
Hi do they sell the mini linear acurators on the Google website
Great job. Do you have the STL’s posted online?
thanks, I'll be posting it within a few days
I have updated the link to the 3D files, please subscribe to my channel for more 3D stuff
High Pritish well done video
Would it be possible to create an actuator with a dc motor?
Yes it would be possible with a DC motor too but a microcontroller will have to control the DC motor using a motor driver and control its position based on the feedback from the potentiometer
why didn't you just place the motor where the potentiometer is? you wouldn't need to modify it.
Is it possible to increase the travel to 90mm using the servo tester specs for signal input? I want to use the design to move a canopy at least 80mm.
Yes it can be increased to 90mm by increasing the gear teeth on the rack driving gear
Can u please provide fusion 360 file. For educational purposes
Sorry I'm not shure about how to assemble it: if I remove the potenciometer the pin that holds the gear is removed, how did you solved it?
I've same question
@@mutthunaveen probably they used different servo, where the pin is not a shaft of a gear
@@SergioGugliandolo yeah Sergio... I read all comments they are doing the same...
please can you give whole assembled fusion 360 file?
Did you use the potentiometer from another servo? Cause the potentiometer rod is where two gears rest on! If you took it out are the gears seated on another rod?
No, I used the one that was inside this one
And I think different servos have different internal design (especially these chines ones), I'll have look and let you know
I'm running into the same issue. @The Beardo Guy (amazing hack / thanks for sharing the 3d models btw!) could you please show how you reassembled the cogs inside after you've taken out the potentiometer? At 12:43 it's clear there are 2 rods, one of which seems to be the potentiometer's, so the cogs that relied on it need some replacement at least on my model. Also the axle of your potentiometer sticking out of its cog (as briefly glimpsed at 1:28) seems wider than that of my servo.
@AZHAGU05 it makes for an expensive potentiometer to take it from another servo, but that's my current workaround, I'm glad you suggested that! I've gutted most of the potentiometer's insides / only preserved its plastic base and metallic rod (the lack of wiper creates an extra 1mm+ gap, which I might try and plug with a washer below the plastic base, unless I 3d print some alternative, thicker plastic base). This allows the "former potentiometer" to rotate 360.
Alternatively, for a cheaper result, one could use another potentiometer of the same resistance and modify the 3d-printed cog accordingly
How I can print the parts? What online 3d printing service you raccomend? I am in Europe.
Hi, I am from India, don't know much about printing services available in your area. I used my own 3D Printer at home.
Anyone here have any success on making this linear actuator work? My servo is different from the one that he use here. I’ve checked 2 different servo. Still not the same like in the video. Appreciate if someone could share the video on how to assemble the potentiometer on this design.
What's the formula for find the no of teeths in gear
I use the in-built gear script in fusion 360 software
sir will u replay me abt the link to purchase this arm
Sir, it's not for sale right now but you can 3D print it, I will put a link in a few days
@@beardoguy sir u want to purchase it . I searched much bt cud not get link for online purchasing.
Please, can you upload the files of this project. I really need it for a project of my own. I would really apprecciate it.
I was a bit busy these days, I'll upload it soon
@@beardoguy Thank you so much, i will share it so new people will know about your content. Its great.
Glad you liked it, I'll be making more 3D printing videos from next month, keep sharing and subscribe to the channel
I have updated the link to the 3D files
@@beardoguy Thanks!
Do I have to connect it to the potentiometer?
Yes, you have to connect it to the potentiometer
Have you considered leaving the existing potentiometer in the servo and just reconnecting the wires to a different potentiometer? If so, you could make the design work for any manufacturer of servo (by picking a well known replacement potentiometer) and construction would be easier because you'd only have to reroute the wires and not remove the potentiometer. Sorry, you got me brainstorming =)
That will work just fine, the only reason that I got the internal one out is I couldn't find any good quality potentiometer in my local stores. Thanks.
how to control this with arduino code ?
Just use the included servo test code in the Arduino ide.
Sorry! cannot loc ate the STL AND STEP FILES
Hi, the stls asre posted on thingiverse, link is in the video description
www.thingiverse.com/thing:4557945/files