My DIY MotionSeat - 2DOF 12V DC motor with Arduino

[zgseat]

Hi all,

Around March this year, i decided to build a motion simulator for myself. The plan is to build a 2 DOF simulator using DC motor and Arduino. I started with the electrical part: a Arduino UNO, a small DC motor (for concept test before odering two powerful DC motors for the simulator), tow 12 V DC power units, some 10K potentiometers and cables.

Before the *, i would like to thank the creator and all contributors of this community.

[zgseat]

This is the electrical part.

[zgseat]

It's a quite while since the last update of my motion seat.

I managed to finish the mechanical parts after the motor control board works properly.

The seat project is following the building instructions of RacingMat, his post helps me a lots:
viewtopic.php?f=37&t=943

Seat base:

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Seat base structure

Two wiper motors monted on the base:

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Two wiper motors

Motor mont:
The mont steel thickness is 6mm， this will make sure the motors are rigid stand.
Also a connecting arm (center distance 50 mm , 5 mm thick) is monted on the motor rod.

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Motor mont

Poteniometer:
The pot can generates the feedback signal of the motor ratation angle.
The bracket which hold the pot is wobbly as you can see, this need to be replaced by a strongger one for future upgrade.
The pot rod is connected to the motor shaft using a rubber tube, this can bear some disalignment between them.

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Potentiometer

Cardan joint:
A cardan joint is need to support the seat which you seat on, this joint can take off most load (the motors can only input some dynamic force based on the signal send by controller) of the seat.
ps. this pic doesn't show the spider of the cardan joint.

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Cardan joint

Finished seat:

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Finished seat 1