My 2DOF arcade machine

for safety where i can find a 360 deg pot?

I use these, have a net search for something near you
http://au.rs-online.com/web/p/potentiometers/1642655/

Hi @bsft, thanks for the link.
This model is 2kohm.
I need a 2kohm or 10kohm potentiometer?
Which is better?

sorry, I am a stupid sod, I meant to put the 5kohm pot link up.
5K ohm pot is recommended by pololu

Hi Petar2, you are doing a good job!!!
If you have more photos please show me

Hi,
I want to ask what code you used for Arduino, and I ask you, if you could draw a diagram of how to get involved.
Thank you.

At the moment I loaded the code given Prilad.
I'm not good at drawing, if thats worth it as these bridges connect the arduino H plate, it will indicate no problem.
But a picture is not possible.

Thank you very much, Prilad has drawn picture, as it involved so nothing happens.

Hi @Petar2, have you find the center of gravity of the seat?

If it has been calculated, and it has resulted in a cardboard template to send it to the blacksmith.
Basically a 40x38 sheet ctm, and the center of gravity, in my case, it is 10 ctm of the back of the sheet.We can also see by removing the bottom plate of the seat (anger plate is attached with screws to the new) subwoofer that brings the seat of manufactures, also bears mentioning that two speakers built into the backrest.

to find balance point, sit yourself on the seat and the frame. Put a broom handle under the frame, get a mate to elp roll you back and forth till yo find a balance point, mark it.

Hi @Petar2, how did you calculate it precisely?

Hi @bsft, but in this way i find it respect to the x-axis but how can i find it respect to y-axis?

strewth, never actually though of that....
Ive never had a problem with y-axis, but you could roll the frame on the broom handle lengthways to find it. Most of the time you are going back and forth on x-axis and 99 % of use use the method as described to find the balance point, be it seat mover or full frame

I've calculated as described BSFT, a broomstick under the seat and helping a friend until you find the balance, when you find the brands.
In my case as I said is 10 cm from the back of the plate that holds the seat.
Measure and adjust the seat to the center axis at the specified distance.

After making the prototype and once calculated the center of gravity, along with the distance to the pedals.me've realized that the best way to introduce the structure in the drawer of the machine, is put forward as the engines did BSFT .
They exploited me more space and stay closer to the engine compartment where the anger pc installed.

Hi @Petar2 , how are you? how grow your project?

Also in my case i think i'll put the 2 motors forward the seat because the balance point is on the back of the seat and the free space after the balance point is little.
I think that if i put the 2 motors behind it the 2 motors make more effort to move the weight.
Right @bsft ?

So i'll put the 2 motors forward the seat but i'll have the pc near the 2 motors.
I hope that the vibration of the 2 motors do not ruin my hd.

Motors at shoulder mount at rear, being higher up use less effort to move you as its above the centre of gravity.
Motors at the front have to work harder as they do not connect as high up.
If you are stuck for space, like I was, the desk racer motor mounting was the better option.
If you have room, shoulder mount them at rear.

Well, I've been a busy day, but I've finally found time to go to the blacksmith and together begin to build the structure.
So far we have done the basic structure, failing to review all TIG welding and put the engine mounts.
This is the result.

While waiting for the Smith set aside some time to complete the structure, I decided to try a DIY hall sensor as sensor I'm using the SS495A1 and a neodymium magnet.

For moving parts an old potentiometer.

Here I show the prototype still unfinished.

All this has been possible thanks to Dualin who showed us the way.

Hi @bsft, thanks for the explanation!