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Author Archives: nefastor
Back in the Breach Again !
Well everyone, everything I mentioned in my previous entry has gone according to plan ! My new online home even has its own domain name : nefastor.com ! If you’re interested, you can support me through Patreon. I’ll be launching … Continue reading
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Blog Hiatus and New Directions
Hi everyone, very nice to have you on my blog. You’ve probably noticed nothing has happened here in quite a while. This doesn’t mean nothing has happened in my lab, what it really means is that nothing has happened that … Continue reading
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LNG1 as a Parallel Kinematics Machine
For some time I’ve been wanting to build a parallel kinematics machine tool and I’ve done my homework, but nothing replaces getting your hands dirty. LNG1 is coming along slowly but its dual-drive X axis has been operational for some … Continue reading
Interesting Times
I’m inaugurating this new category on my blog. I basically wanted a place where I could aggregate my rants, frustrations and pet peeves so they wouldn’t pollute the technical content of this blog. They wouldn’t be on the blog at … Continue reading
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Servo Calibration Mystery
Hello everyone, Since my last post I’ve modified Mill #2 to reinstall its old, shorter X axis so I could repair the damaged ballscrew on the new X axis but also, more immediately, so I could proceed with calibrating my … Continue reading
LNG1 AC Servo Speed Test
Following yesterday’s failure I just couldn’t let it rest, so I burned the midnight oil. I did extensive research on the internals on ballscrews. Then removed the servo from Mill #2B and then tried to turn the ballscrew by hand. … Continue reading
Sticky Ballscrew Trouble
Well, everything can’t always go perfectly. In my last post I demonstrated that my DIY CNC milling machine, upgraded with a 10mm-lead ballscrew and a 600W AC servo, could pull off linear speeds of 20 meters per minute. While that … Continue reading
My First AC Servo
Hi everyone, Today is a big “first” : I’m testing my first ever AC servo. I do use AC servos professionally, notably Harmonic Drive servos, but these are very specialized servos, usually purpose-built, always very expensive. I’ve never actually bought … Continue reading
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New Vises For M2B
Hello, it’s been a while ! The other day I found this interesting interview of Adam Savage, of Mythbusters fame. He’s a far more eloquent man than I am, so I’ll let him explain why he (and I, and people … Continue reading
LNG1 First Test Under Power
I like it when a plan comes together… 😀 A few days ago I introduced my prototype of a fully-integrated CNC machine tool controller based on a Pico-ITX mainboard running Windows or Linux. Since it is ready to go, all … Continue reading
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