The first thing that struck us about this build was the polished, professional look of it. But well-designed electronic leadscrews, like this one from, offer so much more than just easy threading. They do away with the need to swap gears in and out to achieve the proper ratio between spindle speed and tool carriage translation, and that makes threading a snap. Posted in cnc hacks Tagged AliExpress, cnc, cost, price, spindle, testing, tool holder, vibrationĪn electronic leadscrew is an increasingly popular project for small and mid-sized lathes. If you are looking for some other ideas in setting up an inexpensive CNC machine, you might also like to look at BLDC motors from a remote control vehicle. Without some skills in troubleshooting he might have returned the entire machine unnecessarily.
Luckily was able to get a refund on the tool holders since they were out of spec, but still has a quite capable spindle on his hands for an excellent price.
The suspected part causing the vibration was the tool holder, so after checking the machine’s runout and also using a specialized vibration sensor this was confirmed to be the case. But at around 8000 rpm the machine would begin shaking. Even the variable frequency drive, which was programmed at the factory, was working properly. Upon delivery of the spindle, everything seemed to work correctly out-of-the-box. While the delivered product seemed fine, there were some problems that needed investigations. In the case of ’s planned CNC machine build, he took the more adventurous idiom of “no risk, no reward” to heart when he purchased these spindles for the machine from AliExpress. The old saying “you get what you pay for” is a cautionary cliché, but is directly contrary to several other common sayings.
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