MY own 2 dof diy

I do think LED PSU or modified server PSUs are you best option, though that it not really your problem: https://www.xsimulator.net/communit...ver-power-supplies-as-cheap-powerful-psus.54/

As per previous advice wiper motors are not really adequate for a full frame compact design with small inherent leverage, you need much more powerful motors for that: https://www.xsimulator.net/community/threads/motor-2dof.15366/#post-207051

Shoulder mounts or foot mount best suit wiper motors, as both have a lot of inherent design leverage, something like this: https://www.xsimulator.net/community/faq/shoulder-mount-rod-angles.149/

I understand that is not what you would like to hear, but unfortunately with small motors you have to compensate with increased leverage in the design.

An electric wheelchair is likely your best bet.

For a compact design ideally you want something around 200-250w, preferably with 60:1, which should give about 35-40nm torque, those linked have too little torque for a compact design.

They are different with respect to the gearbox, which makes a big difference to the output speed (75rpm) and hence torque.

It is not so much the rpm but the torque the motor puts out that is important.

From @Kieth's build the motors he used can at least drive a knee mount design, though it is not clear what the torque output actually is.

The best advice I can give is that if you want to use weak motors then go for a design that has a lot of inherent leverage, like a shoulder mount, or if you want a compact design look for a motor of 50+rpm and more importantly 35+nm torque.

You have to Register SimTools 2.0: https://www.xsimulator.net/community/threads/how-to-register-simtools-2-0.9720/

If you have exhausted the limited number of re-registrations then you have to make contact via the SimTools website: https://simtools.us/contact-us/

The motor is hot because it is being overloaded.

Reduce the load on the motor or find some way to cool it.

To reduce the load you can shorted the lever Center To Center (CTC) distance, or move the motor further from pivot point to provide more inherent design leverage, or you may need to do both to reduce the load to a sensible level.

If I recall there was a member who even resorted to water cooling some wiper motors.

But instead of buying stuff to work around a problem sometimes it is better to invest in an actual solution, which in this case would be more powerful motors.

Yes you can try holes and fans.

You may want to what else may provide powerful DC motors that may be more common in your part of the world, like winch motors: https://www.xsimulator.net/community/faq/dc-winch-motors-for-motion-simulators.151/

Or consider design changes to better suit the motors you have.