By the way. Now the machine has a 2 to 1 reduction from the motor to the screw and it's made with spur gears. The one on the motor and the one on the screw are made of steel but they are related using a middle gear made out of plastic (it's white I don't know it it's delrin or nylon, buy it has almost no backlash). I think if may be synchronous belts and pulleys were used the vibration would be a lot less. Off course it would have to be a really good and robust belt.
2013/12/12 Leonardo Marsaglia <leonardomarsagli...@gmail.com> > Greg and Gene (this is to avoid quoting a lot of text because you were > talking about the same thing) > > I saw what the common process to make pieces out of a Delrin and Acetal > is to mold them with heat. I'm not familiar with this kind of material but > nylon 6 for example it's not complicated at all the thread and machine on > the lathe. Are Delrin and Acetal all that different? I mean, is not > possible to thread them in the normal way? > > Thank you! > > > 2013/12/12 Leonardo Marsaglia <leonardomarsagli...@gmail.com> > >> >> 2013/12/11 Dave Cole <linuxcncro...@gmail.com> >> >>> It sounds like you are greatly simplifying the machine. An MG set >>> (motor generator set) is a very old technology to create DC power. That >>> was probably obsolete when it was installed. >>> >>> Yes indeed, I really don't understand why a 70's machine would use an >> motor generator to feed a DC motor. >> >> >>> When the Parker Servo malfunctioned it was very obvious. It had a >>> digital display on the front to show status and it would go blank when >>> the induction power was applied to the heating coils. It was quite >>> literally "lights out". I thought that I had lost power to the drive >>> due a wiring error or blow fuse. >>> >> >> I hope I don't have that kind of trouble with the VFD. Sometimes I had >> noise moving my steppers on another machine when the MIG welder pulsed in >> high frequency. I don't know how is it going to be with the heater but may >> be using line filters could help. >> >> >> >> -- >> *Leonardo Marsaglia*. >> > > > > -- > *Leonardo Marsaglia*. > -- *Leonardo Marsaglia*. ------------------------------------------------------------------------------ Rapidly troubleshoot problems before they affect your business. Most IT organizations don't have a clear picture of how application performance affects their revenue. With AppDynamics, you get 100% visibility into your Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro! http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
