Question 24V Gear Motors for 2DOF Rig

Hi,
MY first post so forgive my ignorance.
I am planning on building a basic budget 2 DOF Rig and to keep costs down I am looking at some 24 Volt Gear Motors
Specs are:
Size 30 Ratio 15:1 200 RPM Gearbox with 100 Watt (0.10kW) 3000rpm,Torque 0.31Nm. DC 24Volt
Gearbox size 30 has a 14mm keyed hollow output

Would these be suitable or too low in torque or speed ?
I thought that they would be better than 24V. truck wiper motors which are a little more expensive
Your Thoughts ??

it seams low on torque, i dont remember now what is the actual recomended torque, but it is up to 10N.m and this one says 0.31 wich is super low, but also says 3,000 rmp which is super fast, i guess this is the torque for the motor without gears (your motor has worn and gear mechanism) tray to search the torque for the whole thing, motor+gears.

but from the out side seams powerfull just be shure

fer

Yes, it is 0.31 x 15 (15:1 gearbox) =4.31NM, plenty enough for a 2dof. with great speed (200rpm)

Thanks for the reply.
I thought that the torque was pretty low, but never mind I have found a better alternative with more torque etc from another build on here and they are available in Australia where I live and are almost half the price, so a win win situation.
Here are the specs of the motors:

• 12v No Load Current: 1.8 Amps
  
  
• 24v No Load Current: 0.9A
  
  
• Working Voltage: 12V or 24V DC (12V or 24V
  
  
• Rated Torque: 20 Nm (Locked Rotor Torque)
  
  
• Optimal torque: is 12.5Nm
• Motor Speed: 3600 RPM/160-180 RPM at Gearbox dependant on load.
  
  
• Rated Current 12/24 Volts: 16amps at 12v OR 8 Amps FOR 24v, No load rating of 1A
  

Thanks Noorbeast,
It's your design that I pinched the idea from anyhow.
I'm trying to keep the cost down low and the lower reduction gearboxes are about the same as the whole motor unless you can order them with a lower 60:1 ratio, I will have to check.
I have decided to add a traction loss/ yaw axis to the mix, so does make it any harder for the electronics as that is my weak link.

I have all the gear to build the mechanics, lathe, mill, mig and tig welders, but it's the electronics that stuff me up.
That said, do I need a separate motor controller for each axis as in the case of a CNC machine which has a separate driver for each stepper motor, that much I know as I have built a few of those before.
Any tips and links will help greatly.
BTW. I am also an ex Tassie guy.
I'm a main-lander, but moved to Bagdad in southern Tassie and lived there for ten years, and then sold up and moved back to S.A. which was a bad move unfortunately.

Hi Noorbeast,
Here's another question relevant to the gear motors in question.
I noticed that Motion Dynamics have this controller and I wonder if it is suitable for our purpose or is it too basic https://www.motiondynamics.com.au/home-brewer-special-worm-drive-motor-dc-speed-controller.html
Again forgive my dumbness especially when it involves electronics and electrickery

Thanks.

Fair enough. I thought it would be too good to be true.
I am only familiar with CNC electronics where the normally have one motor, stepper or servo, one driver per motor, an then a break-out board for communication between it and the PC and in a hobby situation you would usually run Mach3 control software to translate the G-Code files into step and direction commands.
You can typically get a 3 axis CNC kit with stepper motors, drivers, breakout board and power supply suitable for a small mill or router from Fleabay for about $400 or thereabouts.
So what controllers do you recommend to use seeing that you have used the same motors, and remembering that I am on a tight budget here.

Thanks.

OK so I am basically just copying what Noorbeast used in his build for his electronics and motor combo.
This is my shopping list so far, so what have I forgotten ?

2 x Controller - Pololu Jrk 12v12 USB Motor Controller with Feedback
-------------------------------------------------------------------------------------------
2 x PSU-
Input Voltage : AC110/220V
Output Voltage : DC12V
Output Power : 40W/60W/100W/150W/250W/350W/500W
Output Current : 3.3A/5A/8.3A/12.5A/20.8A/29A/41.6A
---------------------------------------------------------------------------------------------
2 x Motors - 50:1 Worm Drive Motor 12V/24V 200W, 180 RPM, 20Nm Torque
-------------------------------------------------------------------------------------------------
2 x Pots
---------------------------------------------------------------------------------------------------
1 x Powered USB hub
-------------------------------------------------------------------------------------------
2 x USB A to USB B Mini cables

It looks like both you and I are headed down the same path build-wise, design-wise and shopping list-wise.

For your power, are you going with one or two, and are they the generic LED Lights/3D printer ones?
I'm looking @ some 500w 40A ones for mine.

Things missing from your list (unless your just listing electronics here) are the seat u-joint & two threaded rods with end bearings.

My parts are on the way, and I'll be excited to start the build ASAP.
Being such a similar build, I'm also looking forward to see how yours progresses.
Bookmarking this thread.

Best of luck!

I am trying two Type: 12V 30A 360W Power Supplies from Ebay, one for each motor. AC 220V to DC 5V 12V 24V 48V Led Strip Power Adapter Supply Switch Transformer
The heim joints I am using are 12mm. Ebay specials again and I got 6 for $23.00AUD
I also ordered some Hall effect potentionometers SENSOR HALL 0.2V +20V TO -10V PIN - 6127V1A180L.5FS (Fnl)
And for the U-joint I used a Subaru WRX CV Joint that I had lying around and just cut to suit and mounted to some 6mm. steel base plates
My other electronics are the Arduino Uno R3 and the 2X25A Sabertooth are still on their way from https://www.littlebirdelectronics.com.au
I just have welding to finish off and then I will paint the frame in preparation for the assembly and wiring.

That's a nice deal on the 6 Heim joints for $23 AUD.
They're a lot more expensive here in Canada.

I saw your other thread with the frame build, looking good!!!!

A good chunk of my hardware should arrive before the weekend, and in between deliveries I'm heading out to track down the missing parts.
Fun eh?

Thanks.
As I have titled it, it is a DIY Budget build using lots of steel and other bits and pieces that I had lying around
and I am a fan of re-purposing things when you can to save a dollar and help save the planet etc.
Nothing wrong with cheap Chinese Heim joints in a low stress environment like a sim. Here is the link if allowed or PM me https://www.ebay.com.au/itm/2x-M-F-...var=461360426488&_trksid=p2057872.m2749.l2649
I am amazed at the money some guys are spending on their sims and I reckon you could buy a real race car for the same price as some people are spending.
I get how the sim is cheaper to run / practice at various tracks but I still would want the wind in my hair if I could, preferably a Formula 1000 or Libre ( Superbike powered open wheeler style cars )
Good luck with your build.

Thanks for the link.

I feel the same way, and my build will be a minimalist one, heck, I don't even have access to a welder!
Here's the thread if you care to take a look, just accumulating parts at the moment.
https://www.xsimulator.net/communit...mercial-unit-to-a-diy-under-seat-mover.12453/

Hey, if you want the full "wind in your hair" experience in order to top things off, try one of these paired with up to 4 PWM PC fans.
https://www.symprojects.com/categor...her-controllers-fan-controller/fan-controller

I have one and it works GREAT, the fan-speed is output according to the speeds you are driving at, plus it's programmable.

Not real enough for me.
I raced superkarts back in my youth and if my body would allow it I would like to run some hillclimb events and limited club racing like
but my wallet and body say no way.

Kranky take my advice and buy yourself a decent mig welder or tig welder and teach yourself how to weld.
You will gain valuable knowledge and good tools can last you a life time and the your not at the mercy of others for jobs that can be done yourself.
A lot of the current generation are just not interested in DIY and think that they just buy anything which teaches them nothing about life skills.
I know I'm preaching but I'm old enough to do so as young 62 year old.

Agreed.
I'm looking into picking up a welder and learning how to both properly and SAFELY use it.
It's one of those things that falls into the "Yeah, it'd be nice to have, but I only need it for this one project".
But, that was about 6 projects ago, LOL!!!

I really should just get and be done with it.
BTW, I'm not that far behind you in years.