collapse

Welcome!



Welcome to Robot Rebels, an online robot maker community.

Register today to post your projects, ask questions, share knowledge and meet like-minded people from around the world.


The RobotRebel.org Community

Author Topic: Which micro motor solution would be the strongest ?  (Read 271 times)

programer786

  • Member
  • ****
  • p
  • Posts: 7
Which micro motor solution would be the strongest ?
« on: June 07, 2017, 02:50:31 PM »
Hello,

I'm trying to make a project which needs really small but strong motors. They shouldn't cost to much as I'm trying to make this project as cheap as possible. If possible, I'd like to get them for less than 2$ per piece from China (I will need 5 of them).
The motors need to to rotate slowly (60 to 300 RPM). I found many small motors which fit those criterias but don't know which one is the strongest.

My first idea was to use these motors (which are still rather big) with PWM (using the PCB from an old SG90 servo), this made them rotate in the desired speed but not really accurately and I think they get weaker while using low speeds :
https://de.aliexpress.com/item/10PCS-Micro-130-pony-up-to-four-drive-dc-motor-small-motor-production-of-3V/32702094003.html?spm=2114.13010608.0.0.vTB33e

I also found some small DC motors with planetary gear boxes :
https://de.aliexpress.com/item/5pcs-DC-1-5V-3V-98RPM-Micro-10MM-Planetary-Gear-Reducer-Motor-for-Robot-Smart-Car/32782377317.html?spm=2114.13010208.99999999.282.EMgmie
https://de.aliexpress.com/item/5pcs-DC-3V-6V-Mini-10MM-Planetary-Gear-Reducer-Motor-Coreless-Motor-For-Robot-DIY/32777177278.html?spm=2114.13010208.99999999.279.EMgmie

Last I found some stepper motors :
https://de.aliexpress.com/item/5-Pcs-20MM-dc-6v-stepper-motor-with-gear-box-Double-flat-shaft-4-Phase-5/32330283301.html?spm=2114.13010208.99999999.289.EMgmie
https://de.aliexpress.com/item/5pcs-new-2-phase-4-wire-miniature-15MM-stepper-motor/32802792543.html?spm=2114.13010208.99999999.262.EMgmie
https://de.aliexpress.com/item/5pcs-NEW-6V-Precision-NMB-10mm-2-phase-4-wire-Stepper-motor/32770165992.html?spm=2114.13010208.99999999.269.EMgmie

I don't know whether the first stepper motor will fit the project because of the blue cable holder, but maybe I can remove it.

I will probably use some LM293 double H bridges to control the motors.


Could someone please tell me which motors would probably be the strongest ?

 

* Search


* Recent Topics

metal chassis desktop bot by craighissett
[Today at 06:55:16 AM]


LEGO by Impala
[December 13, 2017, 09:46:53 PM]


Your workshop space by viswesh
[December 07, 2017, 09:32:47 PM]


printed CNC engraver by tinhead
[December 05, 2017, 05:09:44 PM]


Albert Michelson's Harmonic Analyzer by jinx
[December 05, 2017, 01:05:48 PM]


Raspberry Pi / Python eBook - free for the next 11 hours! by MEgg
[December 03, 2017, 04:20:50 PM]


Fun Fact by Impala
[December 03, 2017, 11:26:45 AM]


CZ-1 2.0: problems, calibration and printing, part2 by MEgg
[December 02, 2017, 12:15:34 PM]


Commissioning a Nano Leg Module by BaldwinK
[November 28, 2017, 11:42:31 AM]


T-HR3 by jinx
[November 21, 2017, 03:41:11 PM]


MKS Sbase by jinx
[November 20, 2017, 03:53:21 PM]


Skull Line Follower by Ittiporng
[November 20, 2017, 03:23:18 AM]


Just scary to me... by jinx
[November 16, 2017, 03:05:30 AM]


"Artie" version 3.0 (RTV3) by jinx
[November 14, 2017, 03:11:04 AM]


Anycubic Kossel (pulley) by Bajdi
[November 13, 2017, 04:48:04 PM]

* Recent Posts

Re: metal chassis desktop bot by craighissett
[Today at 06:55:16 AM]


Re: LEGO by Impala
[December 13, 2017, 09:46:53 PM]


Re: Autodownload items (was: Re: LEGO) by MEgg
[December 11, 2017, 02:59:41 PM]


Re: Your workshop space by viswesh
[December 07, 2017, 09:32:47 PM]


Re: Your workshop space by tinhead
[December 07, 2017, 08:50:59 PM]


Re: Your workshop space by MEgg
[December 07, 2017, 03:13:51 PM]


Re: Your workshop space by mogul
[December 07, 2017, 02:43:22 PM]


Re: printed CNC engraver by tinhead
[December 05, 2017, 05:09:44 PM]


printed CNC engraver by jinx
[December 05, 2017, 04:59:18 PM]


Albert Michelson's Harmonic Analyzer by jinx
[December 05, 2017, 01:05:48 PM]


Re: Your workshop space by craighissett
[December 04, 2017, 09:32:32 AM]


Re: Your workshop space by tinhead
[December 04, 2017, 09:26:32 AM]


Re: Raspberry Pi / Python eBook - free for the next 11 hours! by MEgg
[December 03, 2017, 04:20:50 PM]


Re: Fun Fact by Impala
[December 03, 2017, 11:26:45 AM]


Changed calibration after long time by MEgg
[December 02, 2017, 12:15:34 PM]