![]() ![]() This link would be helpful in this.I doubt an L293 would be sufficient for the size motors you would need. From there you can choose appropriate drivers and power supply. Nema 23 Stepper Motor 4.2A 3.0Nm (425oz.in) 100mm Length with 8mm Shaft for CNC Mill Lathe Router. I spent a good 6 months studying the forums there (with very little electronics knowledge but a bit of machinery experience ) and was able to build a machine that filled my needs and fit my budget with very little trouble.As far as choosing components of your system, you should first of all determine what kind of cutting forces you anticipate, along with the desired cutting speed and use this information to size your motors. ![]() Included with the set is Sherlines stepper motor mount which features dual preloaded ball bearings to eliminate end play and a dampened coupling to smooth out the stepping action. Stepper motor 67127 has six wire leads pre-wired in a connector that plugs directly into the Sherline linear or rotary controller. You will find dozens of examples of everything from benchtop machines built from Home Depot hardware to sophisticated 5-axis rigs. A NEMA 23 frame size stepper motor can also be used to drive a leadscrew, in place of the handwheel. I would strongly suggest checking out and looking at some of the many build logs that are posted there to get ideas. Last I heard, I believe he finally settled on a 3-axis solution with a manual, sub-degree resolution, 4th-axis.And if anyone cares, his planned first project is an aluminum AK-47 lower receiver. ![]()
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