It was cheaper than the CNC kits, but it was not possible to get a remote to do some moves without a computer. Those kits are very interesting, but they require a PC with a serial port (dedicated desktop PC). I found that it was possible to make a USB CNC controller with an Arduino UNO, a CNC shield and GRBL. So, I decided to find a solution for a cheap CNC controller. At first, I looked on eBay for CNC kits (+/- $150) that work with Mach3 and required a PC with a serial port. I knew that the CNC controller for this machine was very expensive (around $1500 USD). I've already used this kind of CNC when I was at college during my studies to engrave aluminium parts. The stepper motors are 6 wires Nema 23 with dual shaft (on both sides). The previous owner only used it with the hand wheels. The stepper motors were on it, but without the CNC controller. The picture below is the Sherline when I bought it in 2014.
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