That set of terminals with the intermittent contact is for parking the wipers. Did you notice when you stop the wipers they always go back to the home or park position, where the wiper blades are in the home position. That is the purpose of the extra set of leads he was showing. This can be very helpful in homemade mechanisms if you want it to return to a predetermined position upon completing a function. Thank you for the video it was very well done
Good video! I'm always looking for tips and new ideas. About 8 years ago I first used a wiper motor as a servo for controlling the steering for a radio controlled full size car. These cars are used to stage crashes for the local public safety training center for their accident reconstruction classes. There was no manual for rigging these kind of projects so in the beginning it was a lot of trial and error with homemade parts. The wiper motors give about +/- 20 degrees or so of steering wheel movement which is usually plenty to keep the vehicle on course. The torque is more than enough to turn the wheel on a non-running car with no power steering (it's being pushed). Throttle can usually be done with a standard r/c servo and braking is just on/off with a pneumatic actuator. I enjoy the challenge of rigging up different vehicle models and then controlling them down the track is a rush! I put together a short video of some of our crashes we've done in the past if you might be interested: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Td7kBKz7JLM.html
Very nice, I am designing a trolly for an overhead chainhoist for the purpose of using a wireless tv remote to push/pull the chain hoist along an I beam. Your engineering effort has made my design "stupid simple". Thanks in advance.
Hey Daniel, super video - found it on HaD! I am a bit scared of Werner's power supply with the open mains terminals, though ;) Maybe you (and he) should have a look at PC power supplies. They are cheap and they can provide lots of Amps at different voltages (3.3V, 5V, 12V). I guess at least the 5V line can provide enough current to drive a windscreen wiper motor slowly.
On HaD!? Again! Haha I would never know this without you :D I also find these power supplies scary. I had bad luck with a PC power supply that I spent too much effort on to try and get working, but now I have a proper bench supply that was well worth the investment :)
The issue you are facing is due to the worm gear transmission. They will break if driven backward even a bit. You should be able to replace it with a planetary reducer or a harmonic drive, even 3d printed ones will do the trick better than worm gear
Have you tried Loctite instead of epoxy to add a coupling nut - there are high strength versions to hold parts to shafts - and they can be undone with moderate heat. Interesting stuff, thank you.
Yes, I tried this before I tried epoxy. However, even the highest strenght Loctites were unable to hold the 25Nm torque on these bolts. It is really difficult to imagine what kind of force can be exerted on this shaft!
Hey buddy, very interesting video, I have a wiper motor, specifically a trico model : 91498-418, I removed from a dodge Ram 1500, but I can figure out how many Nm of torque this motor have, I have been looking for the datasheet but I didn't get any information, so ¿ how I can read the information about or how to know the Nm that wiper motor have? Pd: sorry for my english...
@@DomBurgess I'm an artist. I perform, I teach workshops, I make installations, I present videos, I give technical advice... currently I'm mostly busy with my Acrobot project, for which I originally used these wiper motors.
I'm thinking of building a motion rig sim cockpit how much weight can two electric motors handle. my weight is about 115kg and together with the rigging it will probably be 200kg
You will need to calculate how much torque you require from the motors. These motors typically have about 25Nm torque. Weight influences torque, but so does the length of the lever and the angle, etc.
A 3d scan will not be accurate enough, but it is possible to measure and draw it. However, this will quickly get expensive, and possibly risky as I don't know if other parts are near failure too. Luckily there are other motors that have all the kinks worked out, see my video about Cubemars motor modules
I've looked really hard for them, and was unable to find any. They do exist, Doga creates one, but I don't think they are used in cars. Also they are nearly 10x as expensive as the ones I typically use...
@@DanielSimu Thanks for the response. Going to use a wiper motor for a lead screw on a lathe. It is a common conversion. I guess the plastic ones must hold up as most of the conversions on RU-vid don’t specify any particular motor.
@@Wes-tg5xw Did this on my small lathe a few years ago. It's ran from a 10A PSU via a 12v PWM speed controller. I use a pair of toothed pulleys to connect it too the lead screw. This was so I could use a over centre catch to tension the belt, and quickly pop the belt off for when I want to manually control the carriage. It's wired up through a couple of switches that give me forwards, backwards and the 2 main speeds (Which can be further adjusted from the speed controller). It's been a great addon for the lathe, and really helps to get a consistent surface finish with it giving a steady final pass speed. It's worked fine since I put it together, though right at the start I did find that as the whole lathe is earthed through it's main motors earth cable, having the wiper motor trying to use it's body as a negative was tripping the circuit breaker in the fuse box. I just had to pop open the wiper motor, disconnect the negative strap from the casing, and add a new wired negative lead. The wiper motor I got was one of the new aftermarket ones for a Vauxhall/Opal Astra that were all all over eBay a few years back. It's got a metal worm drive with a nylon cog, and it seems to have stood up to being used on my lathe perfectly fine so far.
Yes, I saw that. I was trying to see how it was mounted to the output shaft. Do you have any links/pictures of that process? (I found the link for the servo one that mounts to the motor shaft)
@@Jekyll-Labs I don't have anything useful I'm afraid. If you give me an email address I'll be happy to forward the STL of our plate, but it's unlikely that it will fit your motor, and it's not perfect fit for ours either (but good enough). Either way, it's just a little plate that holds the encoder, the magnet is glued onto the shaft.
