DD-Wheel with Hoverboard Motor

The Nucleo-F303RE board I am using has Arduino connectors too. Maybe the IFX007T could be used to replace the IHM08M1. If I find some time I will look into this option.
I think the IFX007T board could also be used for @danove_b 's approach to replace his DIY board.

https://photos.app.goo.gl/FiEeyyBh6U8S3Gm89

One part printed! Printed in 0.28 mm layer height. Don't care so much of how it looks.

Hi Guys just a mad idea regarding Encoder feedback position when using Hoverboard motors , Im collecting all the parts to copy this project and just made a quick mock up assembly of the encoder feedback setup , have a look see please guys and critique the arrangement .

The plan is to use My 3d Printer to make a Gt2 60t Pulley which will be Bonded to the Hub Motor as shown and this ten belt drive the encoder Pulley roughly as shown in the mock up .

Im thinking this arrangement will allow different types of encoders to be fitted and leaves the front of the Clear for any Quick release adapters ..

Once I finish printing the Drive Pulley it can be bonded on or screw fitted for easier replacement , well that's the plan LOL . i'll start my own thread with loads of picture if it will help anyone else or trigger the next improvement to the use of Hoverboard Motors ..

such a bummer that I cant easily get hold of the 11M08m1 3phase adapter board to go with my ST32 Discovery so eagerly watching the Selection of possible Replacement ,
Just wanted tosay mega Thanks to @Benu and @danove_b for posting this info about Hoverboard wheels as good option for FFB

That should work. Although there might be some loss in accuracy due to the belt. On the other hand you will gain resolution with different sized pulleys.
Maybe you could use something like the "starfish pulley" in this thread. It would help others rebuilding your design. Not everybody will be keen on drilling additional holes in the motor.
You also might check if the load on the encoder shaft isn't too high. You don't want to wear out the bearing. Maybe support the encoder shaft on the other side of the pulley.

Hi @Benu that a brilliant find , my fave saying that theres many ways to skin a proverbial cat rings true. i like this option , to be honest i tend to use equipment i have available so lathes and cnc machines are my work tools , but the goal of making something easily repeated by others is the Target.

the encoder shaft in my design does not take any load as this is done bt a dummy shaft resting between 2 bearings and the encoder is connected by a flexi coupler . left the cad drawings on my PC at work so will post them next time

now got all the electrical/mechanical bits barring a decent BLDC controller to drive the Hoverboard motor, as the 11m08mi's are proving hard to come by . but this starfish option can easily updated to get me a working development unit , Thanks again for the heads up will get it designed tomorrow and post an similar adapted version based on that design .. Cheers

doh forgot to ask .. how much of a hit would it be resolution wise using GT2 belt drive and 1:1 ratio .. 3d Printing will allow me to try this test quickly but did not think of the impact of the belt as i could tension it to get best setting before locking things in place ( that was the initial Plan anyways using aluminium gears 60t )

Hey guys, sorry BTW for interrupt (and for the English,i'm from Costa Rica ), anyone is doing a guide for this project?, because i'm thinking try to recycle a hoverboard to make the steering wheel, but I don't have a very large budget so I want to do everything well. Thank you!!

Hello, just to share infos I am gathering.
I already chose to attemp the IFX007 route but meanwhile had an answer from Keya Electron which I contacted previously about the controller I pointed in DD-Wheel with Hoverboard Motor (used by Ranch in his thread to current control other BLDCs).
We even share the teardown of these motors done on the ODrive forum.
They report their controller to be perfectly fine with these kind of motors.
The 10/50DPW30BL due the amp required. Watch out that the manual you can download from the webpage is wrong.

Unfortunately I neither have a CNC, a lathe nor a 3D printer freely accessible. So the parts I use are mostly handcrafted.

Good thinking!!

Did you try mouser.com for the IHM08M1? They report zero stock at the product page but seem to be able to order one for you. The next order will be delivered July 9th. Check their web site.

You are welcome.

Sorry, do you ask for the "accuracy" hit due to belt drive? I never tested a pulley/belt configuration. So I cannot answer that. But you are almost done with your encoder/motor connection and can report your findings here.

Hi s3baz,
you find the things to buy and to DIY in this thread. One main part, the IHM08M1 inverter board, is not readily available right now but can still be ordered at mouser.com. As soon as the inverter board is available in quantities I will do a guide in the first post of this thread.

Do you have to correct manual and the correct specification for the controller? Would you share it?

Be aware that we need a controller that is capable of:
- driving the motor mostly at stall (so position feedback has to be very accurate and controller has to deliver stall current)
- switch directions almost immediately to transmit road detail and driving forces

Yes they sent it to me. Here it is.
I can not vouche for this controller for our goal, just noted it in another tread and got some info about it. I already chose the IFX007 route.
Anyway I appreciated their attention in requiring me detailed motor spec (that's why I pointed them to the ODrive teardown) and my application requirements (that are those you are pointing at).

BTW about ODrive I read somewhere the V4 should be single motor.

My IFX order is on the way and yesterday I got a mint hoverboard for 30€. So mint I almost afraid to tear it down in the weekend LOL

Hi danove_b, since my approach is very close to your, may I ask which ffb firmware you are using Ai-wave or EMC?
How do you integrate the ffb firmware and the motor control in a single sketch? Got the source of the ffb?

Thank you, @Benu, I'll wait, thank you!!

I actually don't use either of them. I'm a rfactor2 only user, so i take the ffb signal directly from the sim, but there are a user in the "Cousin of open SimWheel" thread that has worked with a early source of AIwave that you could use and just implement code for the BLDC. At the moment I have no ready to use code for that. I hope I get more time later this summer to start work with this project.

I'm so impressed of the things you can do with a 3d printer. Maybe a crazy idea, but I will try to use the tire as a gear for my encoder.
https://photos.app.goo.gl/e7NCme2mC8Gyx8ab9

This is definitely gonna work. I really don't have time for this right now, but when you got an idea of something it's hard to not execute...
https://photos.app.goo.gl/RUBtWbT9iFXMr47E9

At first when I saw the picture I was skeptical and I thought it would slip a lot but in the video it looks like it works pretty well even under speed. Great idea man. Any progress on your motor driver idea?

Will be away from home until 10/7 and then I have some work away from home but sometime in August....

Hi guys I search on Internet a simple driver for the brushless motor. What do you think about this https://www.mikroe.com/brushless to connect directly to STM32/Arduino and use PWM & Dir mode on Mmos?

The problem with this board is the limited current output.

Because you ask in this thread I suppose that you need it for a ffb wheel, and then it's useless. You need torque control, not speed control.