Showroom 2DOF Arduino/moto monster 1st build

Just wanted to say a big thank you to some of the members here. Without the wealth of knowledge that they have shared, this build wouldn't have been possible. Especially Prilad, whose code I have used to program the Arduino.

I have to confess, I'm not into sims (yet). But I have kids, and I wanted to build them something special. So the idea of a racing sim somehow came up and I started doing some research. One thing led to another, and I found this site. And I began to read........and read..........and read. Too much information - I had too many questions.

Best to not rush into it and take the time to digest it all.

So I took my time and read other peoples threads and slowly bought the pieces I would need. Tailshaft uni, rose joints, etc. I decided on new 70W worm gear motors (wiper motors), as they were reasonably priced.



I pulled them apart to check the wiring and remove the unnecessary wires.



The biggest issue was the tapered spline on the shaft. I had to grind a drill bit to the correct taper and re-sharpen it to drill the arms.




Once that was done, it was time for some testing. My biggest concern was that I know nothing about programming, or code, so choosing to use the Arduino was a gamble. I know many members use JRK's and swear by them, but this build had a budget and it didn't allow for JRK's. So I tried Prilad's code, uploaded it to the Arduino, and things just seemed to work....

But I really wasn't happy with the birds nest of wiring. I would have preferred to stack the moto monster onto the Arduino, but the code wouldn't work in that configuration. So it meant a bunch of wires all over the place - too much chance of mistakes and things not working, or blowing up. Didn't like that idea too much, so I spent some time and designed some PCB's made to fit into a small plastic box I had from another project.



Bare PCB



Headers installed. I decided to add a switch into the circuit that would allow me to add limit switches to the motor arms - just in case. Better to cut the power than burn a motor out or damage something, especially when first testing!



Moto Monster and Arduino installed. I used small ram heatsinks on top of the driver chips.



PCB mounted in the box, power supply, motors, pots and limit switch wiring in place. Fan screwed to lid and wired to moto monster for power.



That's it, ready to roll.

Next step was designing the sim. I wanted something different from just a seat, something with some "fun" factor to it. I did some searching and got some ideas.........

Spent some time on CAD and had a design ready.....



It makes things easy when you have a CNC router at home.....


A short time later and it's assembled.


And it folds up when not in use.

Next came mounting the motors. I built 2 rectangle frames from some 30mm tubing I had laying around. I decide to put the motors at the rear, as far away from the pivot point as possible. I also decided to make longer rods, to attach the arms near the centre of gravity.



One mount to hold the 2 motors, limit switches and pots. Helps if you have a CNC plasma cutter at home.....



And here it is in place, everything mounted being tested. The kids have sat in it and the motors have no trouble moving them. Next post I'll upload a vid or 2.

Hi, @DDU !!! Excellent project!!

Sweet , any chance of sharing the PCB and if not asking too much I feel other members would love the plans to the wood construction, very nice job, impressed.
Can not wait to see a video.
Top Work.

Spasiba to you for making it possible!

BTW, now you know your code has been tested on a nano

The PCB is multi-layer Robbie, so it's unlikely the gerber files are of any use to any members as it's not something one can make at home. Plus it's designed to fit a specific case, which needs to be machined on the CNC router to make it all fit neatly - not something many members can do.

However I did have to get a qty of boards made, so if there's interest from others, and if it's OK with Rene, I might offer them in the Marketplace forum.

As for the wood plans, it's a tough one. The design is based on others I found pictures of on the web, so strictly speaking it may or may not be mine to release. Either way, they are a DXF file format, which can only be cut on a CNC router. They have tabs and rebates to lock it all together, and would be far too time consuming to make by hand. I would imagine there's only one or 2 people on this site that have access to a CNC machine, so I can't see how the plans would be any real benefit to the members here???

I think I know about where you found the pics from for the frame. Theres several variations on ISRTV site. Putting up plans could upset the original manufacturers of the hyperstim, even with variations. Up to you if you would like to share sketches though. That would not call for a complaint. Then people would have to use their brains to work out the rest.
Well done for making something up. Yes a CNC would help.
I could do the same, but I am stuck with a jigsaw. And even if it takes ages, I probably have some patience to do it over several weeks or more.

I've never heard of that site Dave. I actually spotted someone selling one on ebay. It was raw MDF and I thought it was home made. Luckily the guy had about 10 pics from every angle - I saved them all and did my best to copy it. It was only weeks later when a customer dropped in and saw it, and mentioned he had one, did I find out it was a Hypersim that I had copied.

So yeah, I don't want to upset anyone. I certainly don't want to be held responsible for anything. There's nothing in it for me except the possibility of potential problems. I don't have the time to research if I can be held accountable. If you want the plans, maybe I could send them to you on paper?

Sorry, no video yet. It's close, but something isn't right.....

Tried it on LFS and the movements are minor. But when I test it using the Sim tools game engine output testing, the movements are wild - too much in fact, throws the sim around like crazy.

Any ideas?

Even though its JRK set up doc, there is profile writing further in, have a read and see if any of the info there helps
http://www.xsimulator.net/community...-set-up-simtools-jrks-and-write-profiles.112/

that is a great looking cockpit

Use the Tuning Centre and don't use more than 100% total Axis Assignment per Axis.

All good now. I forgot that I reduced the Axis Limiting down to 20%.

Obviously when doing the output testing, the limiting is ignored.....

I'll move it indoors tomorrow and try to get a video.

Very nice pro

"""Moto Monster and Arduino installed""

This board used To control motor

How bear amps ؟

pardon?

I think he's asking how much current Moto monster can deliver.

From the Sparkfun:

• Maximum current rating: 30 A
• Practical Continuous Current: 14 A

Thank you
This is required

Excuse me for my language

The moto monster, as well as numerous other drivers are discussed all over this forum (and all over the net) .......why not try using the search box first?? All your questions have been asked and answered again and again.