The noise is caused by tooth shape. I think the sound is caused by air getting pushed out of the grove in the belt and pulley and very high rates and then the teeth slamming together. A lower precision printed pulley would interlock tighter with the belt. The slamming would be a little harder. If noise were important, you would select a more modern rounded tooth shape. Profiles like GT2 have less noise and less "slip" and a bit more strength for the same size belt. and importantly the teeth don't slam together On these belts the belt/pulley interface is much like a sine wave rather than a square wave.
I run GT2 timing belts as fast as the stepper motor can go and don't hear any belt noise. All the noise comes from the motor. On Fri, Jan 1, 2021 at 11:54 PM <[email protected]> wrote: > On 2021-01-02 06:53, John Dammeyer wrote: > > I have noticed the 3D > > printed pulleys are noisier than the metal ones. > > I wonder whether that is because the surface of the teeth will > inevitably be rougher than if they had been die-cast or machined? > > > But the noisy grind > > of the stepper motor is also gone. > > Got to be a bonus. > > > More when it's wired up to LinuxCNC. > > Looking forward to that. Following this topic with interest. > > Marcus > > > > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users > -- Chris Albertson Redondo Beach, California _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
