Recent content by Omar7amdi

Thanks for all, @itsmoked Similar to your suggestion, we tighten the belt. Great idea. @kjoiner What you suggested were done except changing from a trapezoidal tooth shape. We are planning to change to MTD (Metric Round Tooth). how are you guiding the trolley? wheels on the corners. Do you...

Thanks for all participants. We are looking for the cause, sometimes the pulley skips the belt during motion. @MikeHalloran Your idea perpendicular and looking at belt supplier's thickest catalog are good thoughts. @Jboggs: Same accel & decel.~0.43 rev/sec^2. & velocity is 40 rev/min...

Hi 3DDave, The installation looks like the picture in the previous post. Thanks

Hi All, We tightened the belt but from time to time the belt slips and causes a displacement to the trolley. The pulley is on the motor shaft . On the other end of the belt is a roller. The two rollers near the pulley to guide the belt and forbid the belt vibration. Any idea how to stop...

The belt between the two pulleys is not perpendicular. We used two rollers at the bottom end of the post to line up the belt before entering the pulley's groove. Since the belt is not perpendicular, would this situation cause a problem after a while of service?. By the way, I'm an electronic...

Hi all, I have to add this. The post that carries the trolley between point A and B is not perfect, straight. The distance between A and B is 300 cm. When I put a laser light at point A to pint at the wall, by the time the trolley at point B, the laser light deviated by 15 cm. The light should...

Thanks very much for all participants. I hope all thoughts would help me overcome the problem.

Thanks Jboggs, I'll look at that.

Thanks JohnRBaker. I'm getting ideas to solve it. I'll consider it.

Thanks gruntguru , I will consider it.

Hello MikeHalloran, Yes I'm using a gear with a variable speed. The speed plays role in the problem occurrence. It takes more than 3 hours ,continuous running, before the problem occurs. As soon as it occurs it keeps continuous occurring. The trolley out of sync with the motor rotation. Thanks.

Hi SparWeb, The object is a trolley. Both belt ends are fasten on the trolley. The trolley carries 10-20 lb rod.

Hi Byrdj, Thanks it's a good idea. I added the bottom roller only, where the motor pulley. But I did not add the top one. By the way the upper pulley has no teeth, it's a roller. But the motor pulley still skips the belt teeth sometimes and as soon as start skipping it stays doing it.

Hi John, Here is a drawing.

Hello, Suppose this pulley is latched to a motor's shaft residing on the floor. On the ceiling there is a similar pulley hanged on a hook. At the center of the belt's height there is an object carried by the belt. When I ran the motor sometimes the belt's teeth does not lay on the pulley's...