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Month: November 2014
More Stepper and Servo Wisdom
Again, from CNCZONE: Q.) What are the advantages/disadvantages between steppers and servos? A.) Step motors and servo motors service similar applications, ones where precise positioning and speed are required. The biggest difference is that steppers are operated “open loop”. This Read more…
Stepper Motors, Microstepping vs. Full, Increasing Torque Loss with Microstepping, Encoders on Steppers, Flywheels
There’s a lot of misconception about the subject (case in point: Excellent Reading). I also misinterpreted the information and made assumptions based on my (in)complete understanding of it. As such, here’s some excellent sources of information regarding such: CNCZone: Microstepping. The Read more…
Excellent Advice on Procuring CNC Components from 5Bears.com
A genuine great resource and build log: 5BearsCNC
Current Machine Configuration
LMS3960/3990 Mini-Mill Throat: 6.5″ (165mm) Table: 18.1″x 4.7″ (460mm x 120mm) X Travel: 11.8″ (300mm) Y Travel 5.1″ (130mm) Z Travel: 10.6″ (270mm) Travel w/ planned extension block: 12.6″ (320mm) 10.25″ (260mm) maximum extension from the bottom of the Read more…
Ball screw Mapping and Compensation
If you’ve done any investigation into ballscrews, you’ll see there’s a bewildering array of variables: metric/imperial, tolerance classes, pitch/lead, rotational moments of inertia, backlash compensation methods. One that may affect cut dimensions is the variation in pitch between one Read more…
In my experience, the undisputed master of “Tooling Pr0n”
I’ve had this fantastic site bookmarked for some years now, and thought I’d put it up for future reference. It has, as it states on the main page: …over 85 web pages containing 2658 different annotated photographs, 70 animations, plus 325 Read more…
G-Code Commenter, Viewers
Lovely find, this. Slap some code in, and voila! G-Code Online Commenter (Buildlog.net) Upload your Gcode, see it in a brower Gcode.WS