12/9/2023 0 Comments Arduino simulator for androidI have not yet figured out what this command is useful for. The programs SimTools and SMC3Utils work also without these programming line. The motion-rig now runs permanently clean. The subroutine Parsecommand contains the line I found the reason for this in the program SMC3.ino. The Arduino board tries to send data to the computer at regular intervals and tries to reserve a buffer of 4096 bytes. The data rate dropped from 10ms to over 2 seconds. With a little training I could link all 3 axes (Roll, Pitch, Heave).īut here I had the problem that after about 15 seconds the movements of the motion rig were almost completely stopped.īy using a USB analyzer I could see that the USB interface to the Arduino was the problem. Afterwards all other axes could be tested separately. My first test with one axis and the program SMC3Utils went without problems. Especially the GND and 5Volt connections of the Arduino are nicely distributed to the other components. bolt pretension of the bolts the lever arm should not slip on the axle.įor a clearer cable connection of the 3 motor drivers and the 3 potentiometers with the Arduino, I have created a small circuit board that contains all cable connections. There are several online calculations for the slotted shaft-hub-connection in the net, for example:Īt max. The square steel is slotted and clamped with 2 screws M5-10.9. On this I mounted a square steel 18x18mm made of a higher strength material C45K. The shafts of the wiper motors have a diameter of 10mm. With a rotation angle of 180° at the wiper motor I use 324° at the potentiometer. Thus the measuring range of the potentiometer is used quite well. There are 72 teeth on the wiper motor axis and 40 teeth on the potentiometer axis. ![]() Another advantage was that I could adjust the relation between the wiper motor axis and the potentiometer axis by using gears. The lever arm of the potentiometer is preloaded with a small spring (at the moment with a rubber band). Now I mounted the potentiometers on the side and they are movable. The bearings of the potentiometers are not very stable. But this turned out to be difficult due to misalignments in the coaxiality. I had initially tried to mount the potentiometers directly axially on the axes of the wiper motors. ![]() The Arduino UNO board seems to be standard ![]() The 43A motor drivers BT7980B do not reach their limits, because the wiper motors have a maximum current of 16A. This was important to use to avoid damage to the precision mechanics in case of hardware or software malfunction. The potentiometers have no mechanical stop and can be turned over more than 360°. The truck wiper motors deliver nominal 4,5Nm and max. I have used the following basic components:ģ x wiper motor BOSCH 0390 257 693 CHP 24V I decided to use a 3-DOF motion platform to simulate also bumps. I'm glad that I found your community as well. I already have my own self-built Raceseat, the creation of a motion-seat is the new challenge with the mechanics, electrics and software. I would like to present here as a new member my own DIY 3-DOF prototype.
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